The National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Towards a New Concept of Sustainable Plant Nutrition166981710.21608/jenvbs.2020.21970.1080ENHassanEl-RamadySoil and Water Dept., Kafrelsheikh Uni.0000-0002-1113-726XMargitOlleEstonian Crop Research Institute
J. Aamisepa 1, Jogeva alevik, 48309, Jogevamaa, EstoniaBettinaEichler-LöbermannUniversity of Rostock, Faculty of Agricultural and Environmental Sciences, Justus-von-Liebig-Weg 6, 18059 Rostock, GermanyEwaldSchnugInstitute for Crop and Soil Science, Julius Kühn-Institut, Bundesallee 69, 38116 Braunschweig, GermanyJournal Article20200105Plant nutrition is considered one of the most important plant sciences dealing with plant productivity and hence has a great role in global food security. The proper nutrition of cultivated plants in its time, source, amount, and place is the guarantee for this satisfied production. Therefore, the science of plant nutrition is an increasingly important area in plant sciences, which has direct and indirect link with human health. The concept of plant nutrition has been changed from investigation of the application, translocation and metabolism of nutrients by plants into the "engineering" of these applied nutrients for human health. So, it has been established that "feed the soil to feed the human". Thus, recent developments in the field of plant nutrition have led to a renewed interest in the relationship between plant nutrition and human health. Therefore, this is an introduction to highlight on the new book series "Sustainable Plant Nutrition under a Changing World", which will be published by Springer Nature. This book series will focus on advance issues in plant nutrition under stressful environments starting with the changing in global climate and reaching to the production of cultivated crops biofortified with desirable nutrients like iodine, and selenium.https://jenvbs.journals.ekb.eg/article_69817_a7e8862ac60ad73d016b6b485afb266f.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Contribution of management of irrigation water and organic application in improving some soil properties and its water productivity of sugar beet and cotton7187638710.21608/jenvbs.2020.24121.1082ENMegahed MohamedAmerSoil improvement.SWERI.AR.C.0000-0002-6665-4838Said AmerGaizaSoil improvement, SWERI,ARC,EGYPTHasham MahmoudAbou El SoudSoil improvement,SWERI,ARC,EGYPtSahar HasanRashadSoil improvement, SWERI,ARC,EGYP.Journal Article20200216Two field trials were carried out at the experimental farm, Sakha agricultural research station, Kafr El-Sheikh Governorate, Egypt during two successive growing seasons (winter 2018/2019) and (summer 2019). The aim of this study was to investigate the impact of management of irrigation water and organic-fertilization as partial replacement instead of mineral fertilizers application on some soil properties and yield-water productivity of sugar beet and cotton in salt affected soil. The main investigated factors included irrigation treatments at 80,100 and120%, respectively from evaporation pan class A. The fertilization treatments included applying N-fertilizer at three rates of 100, 80 and 60 % N from recommended dose in combination with compost as (0, 20 and 40%). Two levels of potassium humate (i.e., 12 and 24kg ha-1) were also applied. The results showed that cation exchange capacity (C.E.C), soil organic matter, infiltration rate, IR(cmh-1) and hydraulic conductivity were influenced by the individual treatments and recorded the most efficient values due to the interaction of I1*N3*H2 after sugar beet and cotton cultivation. Water productivity (WP), productivity of irrigation water (PIW), economic yield and economic from water unit for sugar beet and cotton crops were significantly increased and recorded the highest values with the interaction of I1*N3*H2 of treatments. Therefore, the irrigation and fertilization management could be considered a proper approach to sustain the soil and water resources in particular under arid and semi-arid regions.https://jenvbs.journals.ekb.eg/article_76387_562f72a3dd45f047f10d66ef143f9e6a.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Biofortification of Stevia rebaudiana (Bert.) Plant with Selenium19318607310.21608/jenvbs.2020.25902.1085ENVeronikaSzarkaAgricultural Botany, Crop Physiology and Biotechnology Dept., Debrecen Univ., Debrecen, Böszörményi u. 138., H-4032, HungaryZsuzsaJokaiDepartment of Applied Chemistry, Szent István University, Faculty of Food Science, Budapest, HungaryHassanEl-RamadySoil and Water Dept., Kafrelsheikh Uni.0000-0002-1113-726XNeamaAbdallaPlant Biotechnology Department, Genetic Engineering Division, National Research Center, 33-El-Behouth St., 12622 Dokki, Giza, EgyptLászlóKaszásAgricultural Botany, Crop Physiology and Biotechnology Dept., Debrecen Univ., Debrecen, Böszörményi u. 138., H-4032, HungaryEvaDomokos-SzabolcsyAgricultural Botany, Crop Physiology and Biotechnology Dept., Debrecen Univ., Debrecen, Böszörményi u. 138., H-4032, HungaryJournal Article20200314SELENIUM (Se) essentiality to humans has been recently proved while for higher plants it still gains considerable debating. Biofortification is an effective and safe way to deliver the required micronutrients to humans and / or animals at their adequate concentration. Thus, the present study aimed at enrichment stevia leaf with Se using selenite and selenate as inorganic Se forms at 0, 1, 5, and 10 mg kg<sup>-1</sup> concentration range. Also, the released Se into drinks (i.e., water, coffee, and green tea) sweetened by Se-fortified stevia leaf was assessed. None of the two applied selenium forms had positive effect on plant growth in terms of plant growing rate and shoot biomass production in the applied concentration range. Along with it the difference in the toxicity of selenite and selenate forms was clearly visible in the vegetative parameters of the plants. Selenium added as selenite in 10 mg kg<sup>-1</sup> concentration totally killed the plants, while lower concentrations (1 - 5 mg kg<sup>-1</sup>) showed symptoms of distress. Low Se concentration (1 mg kg<sup>-1</sup> selenate) induced considerable release of Se from Se-fortified stevia leaves used as sweetener for some drinks including water, coffee, and green tea.https://jenvbs.journals.ekb.eg/article_86073_60a6b90a1a75bb8c45eff6a198076cd4.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Integrated Approaches towards Ameliorating A Saline Sodic Soil and Increasing The Dry Weight of Barley Plants Grown Thereon31468607410.21608/jenvbs.2020.12912.1086ENIhabFaridSoils and Water Department, Faculty of Agric., Benha UniversityAboEl-NasrHashemSoils and Water department,Benha University, EgyptEsraa A.M.Abd El-AtySoils and Water department, Faculty of Agric., Benha UniversityMohamed HHAbbasSoils and Water department, faculty of Agriculture, Benha University, EgyptMahaAliSoil Science, Faculty of Agriculture, Benha University, EgyptJournal Article20200321Soil salinization and water scarcity are among the major threats affecting crop productivity in Egypt. To ameliorate a saline-sodic soil (EC= 8.2 dSm-1 and ESP=22.9%) under no-leaching conditions, a greenhouse experiment was conducted, including three factors [1: Arthrospira platensis bio-inoculant with two treatments (non-inoculated and inoculated seeds), 2: phosphogypsum with three rates (non; 50% of the gypsum requirements (GR) and 100% of GR) and 3: compost with three rates (none, 7.5g kg-1 and 15 g kg-1)]. The outcome evaluations of this experiment focused on evaluating efficiencies of the used treatments in increasing barley plants grown on such a soil, on one hand, and monitoring soil deterioration in terms of soil EC and ESP., on the other hand. After 75 days of incubation, Arthrospira platensis increased significantly the EC values, while decreased soil ESP. This inoculant also increased P and K uptake by plants but had no significant effect on barley dry weight. For soils treated with compost and phosphogypsum, their highest rates decreased significantly soil ESP and, at the same time, caused a significant increase in barley dry weights. Furthermore, these two amendments increased significantly NPK availability and uptake by plants. Generally, phosphogypsum seemed to be more efficient in minimizing the negative implications of soil salinity and sodicity than compost. Moreover, the outcomes of dual and triple application of the chosen amendments seemed to be more promising on both soils and plants than the single ones.https://jenvbs.journals.ekb.eg/article_86074_d767c8ee0d2389c15e3a5adf13c0450b.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Management of Heat Stress in Tomato Seedlings under Arid and Semi-Arid Regions: A Review47589385410.21608/jenvbs.2020.28143.1089ENNeamaAbdallaPlant Biotechnology Dept., Genetic Engineering Division, National Research Center, 33-El-Behouth Street, Giza, EgyptNaglaaTahaPlant Pathology Research Institute, Agriculture Research Center, Sakha, Kafr El-Sheikh, EgyptHassanEl-RamadySoil and Water Dept., Faculty of Agriculture, Kafrelsheikh University, Egypt0000-0002-1113-726XYousryBayoumiHorticulture Department, Faculty of Agriculture, Kafrelshiekh University0000-0002-7034-6889Journal Article20200417The production of protected cultivation of vegetables could be considered a sustainable solution in arid and semi-arid regions. These regions already suffer from the raising temperature due to the global warming, which represents a great challenge facing our universe nowadays. Hence, the production of vegetables under greenhouse system during the high temperatures may be considered a serious problem in these arid zones due to heat stress. In greenhouses, the production of tomato seedlings should avoid the high temperature stress in particular in arid and semi-arid in summer. The heat stress may cause a lot of troubles for the tomato seedlings in greenhouses in summer starting with the photosynthetic rate, and the metabolism processes in seedlings and in turn the growth and development of these seedlings. Although studies have recognized heat stress on tomato seedlings, research has yet to systematically investigate the effect of heat stress on tomato seedlings in greenhouse in summer under arid and semi-arid regions particularly in developed countries, which their greenhouses have not any climate controllers. Therefore, the management of tomato seedlings may need to address the production problems caused by heat stress in greenhouse conditions particularly in arid and semi-arid zoneshttps://jenvbs.journals.ekb.eg/article_93854_be903b6a99593a30c02e404732897dcc.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Irrigation Scheduling and Its Impacts on Freesia-Water Productivity, Vegetative and Flowering Parameters under Greenhouse Cultivation59719385610.21608/jenvbs.2020.28824.1091ENIbrahim MAbdelfattahField irrigation and water requirments, soils, water and environment research institute, agriculture research centerEmanAttiaOrnamental plants and Landscape Gardening Res. Dept., Hort. Res. Inst., ARC, EgyptGhada M.El-BannaOrnamental plants and Landscape Gardening Res. Dept., Hort. Res. Inst., ARC, EgyptJournal Article20200427A pot experiment under greenhouse was conducted during 2017/18 and 2018/19 at Sakha Horticulture Research Station, North Nile Delta to find the impact of different irrigation scheduling on freesia-water productivity, its yield, vegetative, flowering, corms parameters and chlorophyll content. Therefore, four irrigation intervals of 3, 6, 9 and 12 days with four irrigation levels of 100 (Control), 120, 80, and 60% cumulated pan evaporation (CPE) were tested. Results showed that irrigation scheduling significantly influenced the stated items. The mean seasonal irrigation water for the highest economical yield of fresh weight of spike was 12.58 cm, while it was 14.05 cm for new corm under 9 days and 60% or 12 days and 80%, respectively with mean value of 13.32cm. Regarding irrigation water productivity (IWP), the stated irrigation scheduling gave the highest IWP for spike (0.7g.cm-1) and new corm of 0.43 g.cm-1. For freesia marketable yield of fresh weight of spike and new corm, maximum spike weight was obtained from 9 days and 60% and for fresh weight of new corm was obtained from 12 days and 80% CPE. <br />By applying 12 days and 120% level, the highest values of plant height, number of leaves per plant and weight of fresh and dry vegetative growth were recorded. Whereas, 3 days and 120% level gave the highest leaf area. Moreover, watering each 9 days and 80% CPE is the effective irrigation scheduling on flowering parameters. Meanwhile, 12 days and 60% is the proper irrigation scheduling for highest total chlorophyll content.https://jenvbs.journals.ekb.eg/article_93856_755756988518edc8490c712fae48e48e.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Effect of Some Mineral Elements on the Yield, Sugar Contents and Improving Resistance to Cercospora Leaf Spot of Sugar Beet73839385510.21608/jenvbs.2020.28240.1090ENNasrGhazyPlant Pathology Research Institute, Agriculture Research Centre, Giza EgyptAtef A.ShahinPlant Pathology Research Institute, Agriculture Research Centre, Giza EgyptFatma A.MustafaPlant Pathology Research Institute, Agriculture Research Centre, Giza EgyptJournal Article20200419In this study six mineral elements; Copper sulfate (Cu SO₄), Potassium sulfate (K2 SO₄), Micron Sulfure (S), Boric acid (H3 BO3), Copper sulfate + Micron Sulfure (Cu SO₄ + S) and Potassium sulfate + Boric acid (K2 SO₄ + H3 BO3) as well as fungicide; Montoro 30% were used as foliar spraying. These elements were evaluated against Cercospora, leaf spot disease on sugar beet under field conditions during two season; 2017/18 and 2018/19. All foliar applications were significantly reduced the disease severity % compared to untreated treatment during the two seasons. Potassium and combined application of Potassium and Boron treatments recorded the high value of sugar beet leaf dry weight over the control. Sulfure application led to an increase the fresh weight of sugar beet root, while Boron application increased the total soluble solid (TSS), sucrose % and purity %. Results obtained showed significant increasing (%) in catalase (CAT), peroxidase (POX) and polyphenolosxidase (PPO) activities in the case of mineral application and Montoro 30% fungicide compare with untreated treatment. However, the present study showed that foliar application of mineral elements tested in increased yield components of sugar beet, and thus is recommended to increase root yield and quality as well as can reduce disease severity.https://jenvbs.journals.ekb.eg/article_93855_22786731348a7f7b56674d11578b2ebf.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Effect of Biochar, Vermicompost and Polymer on Wheat and Maize Productivity in Sandy Soils under Drought Stress851029385710.21608/jenvbs.2020.29442.1095ENHesham MahmoudAboelsoudSoil Improvement and Conservation Dept., Soils, Water &amp; Environment Res. Institute (SWERI), Agric. Res. Centre (ARC), Giza, Egypt0000-0002-2654-1732Ahmed AwnyAhmedCentral Laboratory for Agricultural Climate(CLAC)
Agriculture Research Center (ARC)Journal Article20200506The drought is one of the most important abiotic stresses limiting crop productivity especially in sandy soils in arid and semi-arid areas. So, using soil amendments such as vermicompost (VC), biochar (BC), and polymer (PL) are more important in these areas. Lysimeter experiments with sandy soil were carried out at Sakha Agric. Res. Station, Kafr El-Sheikh, Egypt to study the effect of 0.4% PL, 4.0% VC and 1.0% BC (W:W soil) on productivity of wheat (2018/019) and maize (2019) under tow irrigation levels (irrigation after depletion of 50% and 75% from available water). The obtained results indicated that irrigation at 75% moisture depletion (irrigation deficit) decreased plant height, 100-grain weight, grain and straw yields, water applied to wheat (-16.8%) and maize (-20%) compared to that with higher irrigation level (50% depletion). Also, water productivity was slightly decreased for wheat, but it slightly increased for maize and ECe values were slightly increased due to irrigation deficit. Also, applications of soil amendments and their combinations significantly increased plant height, 100-grain weight, and yield and water productivity of both crops and improved soil porosity and field capacity. The VC was more effective followed by BC and PL, while their interactions were the most effective on these parameters. Moreover, soil amendments alleviated the deleterious effects of irrigation deficit on plant growth and salt accumulation. Finally, applying BC combined with VC and PL could be recommended as a good approach to maintain long-term productivity of sandy soils and mitigate the hazardous effects of drought stresses.https://jenvbs.journals.ekb.eg/article_93857_2074820d02a09f0923dd75243107df98.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Monitoring Environmental Pathways of Trace Elements in the Northern East Area of Egypt1031219494310.21608/jenvbs.2020.29403.1094ENMohamedBassounySoils and Water Department,Faculty of Agriculture, Benha UniversityMohamed H.H.AbbasSoils and Water department, faculty of Agriculture, Benha University, EgyptJournal Article20200504Nile Delta aquifer is one of the largest aquifers worldwide that receives the agrochemical leachates from the surrounding environments. To assess the status of some trace-elements (As, Co Cd, Pb, Cu and Ni) in the North-East area of Egypt, well-water samples beside of surface, subsurface and deep-soil-samples were collected from 17 different locations to represent three environmental-pathways: the first one signifies areas relatively nearby Damietta-branch, while the third pathway stands for the arable lands nearby Ismaellia-canal. The second pathway is in-between these two pathways. Furthermore, a reference soil (irrigated with fresh-Nile-water) was sampled for data comparison. These samples were estimated for their total and AB-DTPA-extractable contents of the aforementioned trace elements (TEs). Results revealed that AB-DTPA-extractable-TEs were in dynamic equilibrium with the corresponding soluble contents in irrigation water. Likewise, AB-DTPA-extractable-TEs significantly correlated with their corresponding total contents in soil. Concentrations of TEs in surface-soil-layer were higher than the corresponding ones in the subsurface and deep-soil-layers. The calculated values of contamination factor indicated moderate to very high levels of soil contamination with TEs. According to principal component analysis, total and AB-DTPA-extractable-TEs in soil were affected by only one-principal-component, recording 86.13 % of the data variance. This indicates that these contaminants originated probably from the same source. Moreover, multivariate-analyses revealed that total TEs significantly and positively correlated with soil hydraulic conductivity and bulk density, while negatively correlated with exchangeable sodium percentage, clay and organic matter contents. These results indicate that the groundwater flow is the potential source that enriched soils with TEs.https://jenvbs.journals.ekb.eg/article_94943_d36229dd4a6ba7fbe7dce1b2d866302f.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Management of Greenhouse Cucumber Production under Arid Environments: A Review1231369864410.21608/jenvbs.2020.30729.1097ENNaglaaTahaPlant Pathology Research Institute, Agriculture Research Center, Sakha, Kafr El-Sheikh, EgyptNeamaAbdallaPlant Biotechnology Department, Genetic Engineering Division, National Research Center, 33-El-Behouth St., 12622 Dokki, Giza, EgyptYousryBayoumiHorticulture Department, Faculty of Agriculture, Kafrelshiekh University0000-0002-7034-6889HassanEl-RamadySoil and Water Dept., Kafrelsheikh Uni.0000-0002-1113-726XJournal Article20200520Greenhouse cucumber production is considered an important tool beside open field production. The production of greenhouse cucumber in developing countries particularly in arid environments might achieve as low cost structures and almost without air conditions. These conditions have increased the constrains of cucumber production to be include more stresses beside salinity, drought and heat stress. These stresses mainly include biotic stress and abiotic stresses, which cause a high loss in the cucumber productivity. Thus, this review is an attempt to highlight the problems of greenhouse cucumber production under abiotic stress (mainly drought and salinity) and different strategies, which should be adapted against these stresses. Several studies have handled the individual stresses, which impact on greenhouse cucumber production but fewer studies have investigated the multiple or combined stresses. Salinity and drought are most common abiotic stresses under changing climate, which mainly cause a trouble in cucumber antioxidant enzyme activity and generate an oxidative stress leading to a loss in cucumber productivity. New strategies should be adapted to ameliorate or mitigate the expected damage resulting from salinity and drought-stressed cucumber.https://jenvbs.journals.ekb.eg/article_98644_2f79e1490f1a0f910903eab9ea603a8d.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201The Effect of Silicon on Minimizing the Implications of Water Stress on Tomato Plants1371489864210.21608/jenvbs.2020.28732.1092ENMohamedAbd El- AzizSoil, Water and Environment Research Institute (SWERI),Agric.Research Center (ARC),GizaJournal Article20200427Water scarcity is a global issue especially in arid regions and rationalizing the use of fresh irrigation water has become necessary to satisfy water needs. The current study investigates using Si to alleviate the implications of water stress on tomato plants grown on a light textured soil. A split-plot experiment was conducted under the field conditions for two successive seasons (2017 and 2018) on tomato under two deficit irrigation levels i.e. 70 and 85% ETc as well as 100% ETc for comparison. Plants were subjected to two levels of silica foliar spray (0 and 0.4 mM). At physiological maturity growth stage, chemical characteristics of tomato fruits as well as total fruit yield were determined. Deficit irrigation decreased contents of chlorophyll A and B in leaves; while increased proline content in plant roots. This consequently decreased tomato fruit yield; while, raised its contents of total dissolved solids and vitamin C. On the other hand, spraying plants with Si raised significantly chlorophyll A and B in leaves and alleviated plant stress by increasing proline content in roots. This increased significantly fruit yield. Irrigation with 85% Etc with Si spray recorded a rather similar fruit yield to those irrigated with 100%Etc. Moreover, Si treatments increased significantly water use efficiency by the crop. Thus, Si spray can take part in saving considered amounts of water that can be used for irrigation of further tomato areas.https://jenvbs.journals.ekb.eg/article_98642_9578256d73ec9d4b17ef2621a805b186.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201The Role of Humate Substances in Controlling Synergism and Antagonism of Nutrients Uptake by Potato Plants.1491659864310.21608/jenvbs.2020.29796.1096ENKholoudEl-NaqmaResearcher, Soils , Water and Environment Research Institute, ARCJournal Article20200509A field experiment was carried out during the two successive winter seasons of 2016 and 2017 in a clayey textured soil located at Sakha Agricultural Research Station farm, Kafr El-Sheikh Governorate to study effect of humate substances (HS) as complexes agent on NH4+, K+, Ca++ and Mg++ antagonisms on Potatoes crop (Solanum tuberosum, L. - c.v. spunta). A split plot design was used with three replicates. The main plots were assigned with three application methods: without humate substances, humate substances fertilizer coating and soil addition of humate substances with irrigation water . The sub plots were assigned with five fertilization treatments N, NK, NKCa, NKMg and NKCaMg. The results showed that soil addition of humate substances with NKCaMg treatment had a significant effect on plant growth parameters in leaves at 90 days age and yield components. The highest values of tubers yield, dry matter % of tuber, protein %, starch %, N, P, Mg-content kg.fed-1 were obtained with soil addition of humate substances +NKCaMg. The highest K-content kg.fed-1 was obtained with soil addition of HS+NK treatment, the highest Ca-content kg.fed-1 was observed with soil addition of HS+NKCa treatment. It could be concluded that humate substances fertilizer coating by humate substances or soil addition of humate substances could help in decrease antagonism process to improve plants growth and increase tubers yield and their quality under this conditions as well as increase nutrient efficiency of potato.https://jenvbs.journals.ekb.eg/article_98643_420be046da3795ab49add7adf03490b6.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Maximizing Productivity of Peanut (Arachis hypogaea L.) Plants in Sandy Soils Using Environmental Safe Fertilizers16717910143310.21608/jenvbs.2020.30824.1098ENAhmed MohamedElbaalawyLecturer of soil fertility and plant nutrition0000-0002-0254-4947Manal F.Tantawyprofessor of soil science , ARC, EgyptNaglaa E.El-Noamanylecturer of soil microbiology, soil science department, Faculty of Agriculture, Menoufia University, EgyptJournal Article20200522Recent fertilization strategies in the world show that the use of environment safe fertilizers is of great importance to decrease the harmful effects of fertilizers on environment and human health, especially in the newly reclaimed soils. Therefore, this study was carried out to evaluate the effect of some environmental safe fertilizers (i.e., organic and bio fertilizers) in different sources on sandy soil productivity of peanut plants (Arachis hypogaea L.). The used organic fertilizers were farmyard manure (FYM), solid plant compost (SPC), enriched compost tea with humic substances (ECT) and mixture of FYM and ECT, while the used bio- fertilizers were B1 (Azospirillum braselinse (local strain) + Bacillus megatherium (local strain) + Azotobacter chroococcum (local strain)) and B2 (Bradyrhizobium sp. (strain (USDA 3456)) + Serratia marcescens (strain MH6) + Psuedomonas fluorescens (strain IFO 2034)). The obtained data showed the superior increase effect of ECT followed by FYM+ECT applications straw, pods and seed yields straw and seeds contents of N, P and K as well as seeds contents of protein and oil. Similar increase for all determined parameters were found in the plants inoculated by B2 compared to that with B1. Thus, use of both organic and bio- fertilizers in the fertilization strategy of sandy soil is very important and also may be economicallyhttps://jenvbs.journals.ekb.eg/article_101433_51f08085c32dbad0aee3570c1b693c21.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Oil Yield and Nutrients Uptake by Irradiated Canola (Brassica napus L.) in Response to Different Nitrogen and Irrigation Water Sources.18119910639210.21608/jenvbs.2020.32736.1099ENHassanAbbasSoils and Water Department, Faculty of Agric., Benha UniversitySoliman M.SolimanAtomic Energy Authority, Nuclear Research Center, Soil and Water Research Department, Abu-ZaablIhabFaridSoisl and Water department, Faculty of Agriculture, Benha UniversityYahia G.M.GalalAtomic Energy Authority, Nuclear Research Center, Soil and Water Research Department, Abu-ZaablMohamed H.H.AbbasSoils and Water department, faculty of Agriculture, Benha University, EgyptIbrahimMohamedof Agriculture, Soils and Water department, Benha UnuversityAhmedMorsyAtomic Energy Authority, Nuclear Research Center, Soil and Water Research Department, Abu-ZaablSamiMoslhyAtomic Energy Authority, Nuclear Research Center, Soil and Water Research Department, Abu-ZaablJournal Article20200615A field experiment was conducted at the Experimental Farm of the Nuclear Research Centre, Atomic Energy Authority, Inshas- Egypt to investigate the effects of radiating canola seeds with γ-ray at three doses i.e. 100, 200 and 300Gy vs the non-irradiated-control on plant growth-performance and yield-productivity. Nitrogen-fertilization and source of irrigation water were also a matter of concern in this study. All experimental plots received the recommended dose of N-fertilizers in either of the following forms: 100% mineral-N, 100%organic-N or 50%mineral-N+50% organic-N. Also, a drip irrigation-system was constructed to irrigate canola plants with either fresh-water or treated-wastewater. Irradiation, in general, resulted in higher values of canola-dry-weights which were enhanced by increasing gamma-ray dose up to 300Gy. Similarly, NPK-contents within different plant parts of the irradiated-canola increased in an order coincide with the magnitudes of the used irradiation dose i.e. 300> 200>100>0Gy. Moreover, oil-yield was significantly increased with increasing gamma-dose. On the other hand, the enhancement of NPK-uptake was more vigorous in case of combined-fertilization-treatment (50% mineral-N+50% organic-N) than either application of 100%mineral-N or 100%organic-N. This consequently raised significantly root and shoot-dry-weights as well as seed-yield and canola oil-productivity. It seems that irrigation with treated wastewater resulted in higher increases in NPK-uptake as well as canola oil-yield than irrigation with fresh-water. Thus, it can be deduced that the combined-fertilization-treatment and high irradiation dose of gamma-ray had achieved the highest increases in plant-DW and productivity, at the same time these values were higher under irrigation with treated wastewater than those irrigated with fresh-water.https://jenvbs.journals.ekb.eg/article_106392_9ceb0d5d23ce15e42299a33e41afde52.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Alfalfa Growth under Changing Environments: An Overview20122410855910.21608/jenvbs.2020.37746.1101ENHassanEl-RamadySoil and Water Dept., Kafrelsheikh Uni.0000-0002-1113-726XNeamaAbdallaPlant Biotechnology Department, Genetic Engineering Division, National Research Center, 33-El-Behouth St., 12622 Dokki, Giza, EgyptSzilviaKovacsAgricultural Botany, Plant Physiology and Plant Biotechnology Dept., Debrecen University, Debrecen, HungaryÉvaDomokos-SzabolcsyAgricultural Botany, Plant Physiology and Plant Biotechnology Dept., Debrecen University, Debrecen, HungaryNóraBákonyiAgricultural Botany, Plant Physiology and Plant Biotechnology Dept., Debrecen University, Debrecen, HungaryMiklósFariAgricultural Botany, Plant Physiology and Plant Biotechnology Dept., Debrecen University, Debrecen, HungaryChristoph-MartinGeilfusHumboldt-Universität zu Berlin, Faculty of Life Science, Institute of Agriculture and
Horticulture, Division of Controlled Environment Horticulture,Albrecht-Thaer-Weg 1&3, 14195 Berlin, GermanyJournal Article20200801Crop production is one of the most important agro-global issues, in particular questions of production under changing environmental conditions. This production needs to be increased to meet global needs for food, feed, fiber and fuel. Alfalfa is classified as "the queen of the forage crops" due to its high protein content and nutritional value as well as its unique availability during the summer compared with other forage crops. The production of alfalfa under different stressful environments is a great challenge due to several problems with alfalfa crop production, which represent a serious threat to global food security. These stresses may cause a decline in the global feed production from alfalfa due to harmful effects resulting from stresses at the physiological, biochemical and histological levels. To improve the production of alfalfa under these stresses, there is a crucial need to understand the response of alfalfa plants to stresses, the mechanisms of tolerance and the management options. The bio-organic fertilizers derived from alfalfa plants are a crucial and sustainable solution in particular under stressful environments. This review represents an attempt to highlight the positive sides of alfalfa production, particularly the sustainable use of this crop in bio-organic fertilizer production. The chemical and anatomical properties of this plant will also be reviewed. The histology of alfalfa plants under changing environments still needs further investigation.https://jenvbs.journals.ekb.eg/article_108559_ac1f8080aa93679b7f1a32d48b2e2262.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Impact of bio-inoculation with Bradyrhizobium spp. on yield and Seed quality of forage cowpea (Vigna unguiculata L.) under soil salinity conditions22523811102510.21608/jenvbs.2020.39713.1102ENTamerEl-GaafareyDepartment of Forage Crops, Field Crops Research Institute, Agricultural Research Centre, Giza, EgyptShereenEl-NahrawyDepartment of Forage Crops, Field Crops Research Institute, Agricultural Research Centre, Giza, EgyptSahar M.El-NahrawyMicrobiology Department, Soil, Water and Environment Research Institute, Agricultural Research Center, Giza, EgyptJournal Article20200818A study was carried out to assess the effect of single and/or combined inoculation with Bradyrhizobium spp. isolates on seed yield and quality of forage cowpea (Vigna unguiculata cv. Baladi) under salinity-affected soil conditions. The experiment was conducted in a split plot design for two growing seasons, 2018 and 2019, with two main plot treatments of irrigation water (normal and saline) and four sub-plot inoculation treatments. Results revealed that sub-main plot treatments differed significantly for number of branches, number of pods, pod length, number of seeds pod-1, pod weight plot-1 (Kg) and seed yield (Kg fed-1) of forage cowpea plants as affected by the type of irrigation water in the two growing seasons. Also, combination treatment (Bradyrhizobium SARS-Rh3 and Bradyrhizobium SARS-Rh5) significantly minimized the negative effects of saline irrigation water treatment for seed content of elements (N, P, K, Zn, Mn, Fe and Cu). In the same context, inoculation treatments followed the descending order of SARS-Rh3 + SARS-Rh5 > SARS-Rh5 > SARS-Rh3 > control for total carbohydrate and protein % of cowpea seeds during 2018 and 2019 seasons. For assessment of seed quality viz., seed germination (%), seedling length (cm), seedling weight (g), vigour index I and vigour index II were higher in 2019 than 2018 season. Similar finding was observed in economic evaluation for SARS-Rh3+SARS-Rh5 treatment which enhanced profitability of cowpea during the two growing seasons.https://jenvbs.journals.ekb.eg/article_111025_ad347c350f028aa736b1b24403d666a2.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Enhancement of Onion (Allium cepa L.) Drought Tolerance in Calcareous Soils by Using Bio-Stimulants23925111408910.21608/jenvbs.2020.41196.1104ENMohamedHefzyDepartment of Water Requirement and Field Irrigation Research, Soils Water and Environment Research Institution, Agricultural Research Center&lrm;&rlm;, Giza, Egypt.HassanMostafaCentral Laboratory of Organic Agriculture, Agricultural Research Centre (Affiliation ID: 60019332), 9 Gamaa Street, 12619 Giza, EgyptMostafaZahranSoils, Water and Environment Res. Institute, ARC, Agricultural Research Centre (Affiliation ID: 60019332), 9 Gamaa Street, 12619 Giza, Egypt.Journal Article20200831The current investigation was aimed to investigate the influences of different irrigation regimes, bio-stimulants and their interaction on onion yield and yield components, to improve plant growth under water stress, to reduce the negative effect of water stress. A split-plot desing was used, which the main plot was irrigation treatments (100% of crop evapotranspiration, 80% ETc and 60% ETc), while the bio-stimulants (control, yeast extract, potassium humate and yeast extract plus potassium humate) were assigned in sub-plot. The results showed that soil application of the biostimulants reduced the negative impact of water deficit compared to control. Yeast extract followed by yeast extract plus potassium humate recorded the highest plant height, diameter of neck and bulb, shoots fresh weight, fresh weight of bulb and total yield of onion during both seasons. With decreasing the required amount of water (at 80% ETc), the reduction percentage was only 5.18% and 4.65% when plants treated with yeast extract compared to 100% ETc in the 1st and 2nd seasons, respectively. However, yeast extract at 80% ETc was higher in the total yield than untreated plants under 100% ETc irrigation regime by 16.37% and 16.03% during the first and second seasons. Moreover, the highest irrigation water use efficiency was recorded at an irrigation regime 80% ETc and yeast extract with no significant difference with yeast extract plus potassium humate. From obtained results, yeast extract and or yeast extract plus potassium humate could play an important role in increasing plant stress tolerance to water deficit irrigation.https://jenvbs.journals.ekb.eg/article_114089_d46e9756fd65534042260dc712eb64bb.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Subsoiling Tillage and Compost Applications in Relation to Saline Soil Properties and its Productivity of Wheat25326611691310.21608/jenvbs.2020.41236.1105ENEl-Hussieny A.Abou HussienDepartment of Soil Science, Faculty of Agriculture, Menoufia University, Shebin El-Kom 32514, Menoufia, EgyptWael M.NadaDepartment of Soil Science, Faculty of Agriculture, Menoufia University, Shebin El-Kom 32514, Menoufia, Egypt0000-0002-1884-8646HanyMahrousDepartment of Soil Science, Faculty of Agriculture, Menoufia University, Shebin El-Kom 32514, Menoufia, EgyptJournal Article20200831This study aims to clarify the individual and combined effect of both subsoiling tillage and compost on chemical properties of saline soil and its productivity. A field experiment was conducted during winter season of 2018/2019 at El-Hamoul area, Kafr El-Sheikh Governorate, Egypt. This experiment included 6 treatments with three replicates (18 plots) where the main factor was tillage (subsoiling tillage, ST; non-subsoiling tillage, NT) and the compost (sulphur compost, SC; non-sulphur compost, NSC) applied at 24.0 Mg ha-1 represented the second factor. All plots were sowed by wheat plant (Triticum aestivum L. Misr 2). After harvesting, straw and grains were weighted and soil samples of each plot were taken at depths of 0-15, 15-30, 30-45, 45-60 and 60-90 cm to determinate some chemical properties (pH, EC, ESP and OM) and the available macronutrients (N, P, K and S) in soil. Compost application without and with subsoiling tillage significantly decreased the soil pH, ESP, EC and increased OM and soil available macronutrients (N, P, K and S). Subsoiling tillage resulted in a significant decrease of soil ESP, EC, OM and the soil available N, P, K and S, while there was slightly increasing in soil pH. Application of compost either without or with ST significantly increased both straw and grains yields of wheat plant compared with control. Treated saline soil with compost and ST had a high positive impact on soil chemical properties and its productivity of wheat plant, where the preference was for ST and SC treatments.https://jenvbs.journals.ekb.eg/article_116913_97e58ce7d71bea5a1b3d9c267a0831ef.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Biochemical Assessments of some Important Components in Tubers, Leaves and Calli Cultures of Three Jerusalem Artichoke Cultivars26727511691510.21608/jenvbs.2020.42184.1106ENNeamaAbdallaPlant Biotechnology Department, Genetic Engineering Division, National Research Center, 33-El-Behouth St., 12622 Dokki, Giza, EgyptMohamed I.RagabHorticulture Department, Faculty of Agriculture, Ain Shams University, Shoubra Elkheima, Cairo, EgyptSalahEl-MiniawyHorticulture Dept., Faculty of Agriculture, Ain Shams University, Shoubra El-Kheima, Cairo, EgyptNermeenArafaPlant Biotechnology Department, Genetic Engineering Division, National Research Center, 33-El-Behouth Street, 12622 Dokki, Cairo, EgyptLászlóKaszásAgricultural Botanics, Plant Physiology and Biotechnology Department, University of Debrecen, AGTC B&ouml;sz&ouml;rm&eacute;nyi u. 138, 4032 Debrecen, HungaryZoltánKovácsAgricultural Botanics, Plant Physiology and Biotechnology Department, University of Debrecen, AGTC B&ouml;sz&ouml;rm&eacute;nyi u. 138, 4032 Debrecen, HungaryEvaDomokos-SzabolcsyAgricultural Botany, Plant Physiology and Plant Biotechnology Dept., Debrecen University, Debrecen, HungaryHusseinTahaPlant Biotechnology Department, Genetic Engineering Division, National Research Center, Dokki, Giza, EgyptJournal Article20200908Due to several byproducts derived from Jerusalem artichoke (JA), it has several ecological and economical benefits in bioenergy production, functional foods and human health. These bio-based multi-products include fructose, inulin, antioxidants, natural fungicides and bio-ethanol. This study included the assessment of some biochemical components of in vitro callus and in vivo leaves and tubers of three JA cultivars and their significant role for human health. Inulin as a functional food ingredient, fructose, protein and polyphenols were selected. The most important findings demonstrated that the inulin content in tubers of any studied JA cultivar was 4-5 folds that in callus. The lowest values of fructose among JA fractions were recorded for callus of the three studied cultivars. Both callus and leaves of all studied JA cultivars showed the highest crude protein comparing with the tubers. The total soluble phenols were higher in callus of all JA cultivars than both leaves and tubers. This study may open a window on the potential of plant tissue culture techniques for increasing such important bioactive compounds for human health. This is the first report handles the comparison among callus, tubers and leaves of three JA cultivars in their content of the bioactive compounds. Further investigations are required not only to determine the fractionations of the bioactive compounds but also different approaches of tissue culture techniques should be employed to increase the studied bioactive components particularly the inulin and fructose in the investigated JA cultivars.https://jenvbs.journals.ekb.eg/article_116915_c3cb3c6c5e73dcaa21c96e1d777180ba.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Response of Phalaenopsis Orchid to Selenium and Bio-Nano-Selenium: In Vitro Rooting and Acclimatization27729011691710.21608/jenvbs.2020.42806.1107ENMayada K.SeliemOrnamental and Floriculture Dept., Horticulture Research Institute, Antoniades, Alexandria 21599, EgyptNeamaAbdallaPlant Biotechnology Department, Genetic Engineering Division, National Research Center, 33-El-Behouth St., 12622 Dokki, Giza, EgyptHassan RagabEl-RamadySoil and Water Department, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, Egypt0000-0002-1113-726XJournal Article20200913Rooting of orchids is still the main real problem that obstructs its propagation, as roots are hardly to develop in nature. So, Orchid needs to improve its propagation by enhancing its rooting development in vitro. The plant tissue culture of orchids is the most promising field that has been commercially used for getting of virus-free and high-quality rooted plants and representing around 70 % of transplants production. In this study the, shoots of in vitro plantlets were separated and cultured on half MS medium supplemented with nano-Se (0,10, 20, 30, 40 and 50 mg l-1) or corresponding doses of bulk type selenite (0, 0.5, 1, 2, 4, 6, 8 and 10 mg l-1) in separates treatments with or without 0.5 mg l-1 NAA (α-naphthalene acetic acid). The two different sources of selenium (i.e., nano-Se and sodium selenite) were selected at mentioned concentrations to improve orchid rooting and acclimatization. Supplementation of half MS medium with 50 mg l-1 nano-Se + 0.5 mg l-1 NAA recorded the highest significant value of rooting percentage and root length as well. Whereas, half MS medium with 40 mg l-1 nano-Se + 0.5 mg l-1 NAA gave the optimum number of roots. On the other hand, this enhancing effect decreased after fortified the culture medium with 10 mg l-1 selenite. It could be concluded that in vitro rooting of Phalaenopsis orchid was improved by supplementation of nano-Se up to 50 mg l-1 in presence of 0.5 mg l-1 NAA consequence, acclimatization process was enhanced.https://jenvbs.journals.ekb.eg/article_116917_0e15af23311b3626b734494fe43fd2dd.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Sustainable Approaches of Trichoderma under Changing Environments for Vegetable Production29131112216410.21608/jenvbs.2020.45046.1109ENNaglaaTahaPlant Pathology Research Institute, Agriculture Research Center, Sakha, Kafr El-SheikhSaidKamelAgricultural Research Centre, Plant Pathology Research Institute, Giza 12619, EgyptTamerElsakhawyAgriculture Microbiology Department, Soil, Water and Environment Research Institute (SWERI), Sakha Agricultural Research Station, Agriculture Research Center (ARC), Kafr El-Sheikh0000-0001-9512-6826YousryBayoumiHorticulture Dept., Faculty of Agriculture, Kafrelsheikh UniversityPhysiology & Breeding of Horticultural Crops Laboratory, Horticulture Dept., Faculty of Agriculture, Kafrelsheikh University0000-0002-7034-6889Alaa El-DeinOmaraAgricultural Microbiology, Soil, Water and Environment Research Institute, Giza, Egypt0000-0001-5622-7501Hassan RagabEl-RamadySoil and Water Department, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, Egypt0000-0002-1113-726XJournal Article20201004The world’s burgeoning population faces a great challenge concerning food security, which could be achieved through different sustainable agricultural practices. Trichoderma, as a ubiquitous fungus, is one of the most promising microorganisms that might offer several avenues for sustainable agriculture. Trichoderma spp. may guarantee a better solution for conventional problems in agriculture through several approaches including the protection of cultivated plants from undesirable abiotic and biotic conditions under changing environments and promoting their growth in poor or limited soil nutrients. The promising role of Trichoderma for vegetable production as a biocontrol and biofertilizers has been confirmed but this role of Trichoderma as a plant pathogen still needs more studies. Trichoderma could inhibit or suppress the growth of soil phytopathogens, promoting plant growth and soil health, through activation of many mechanisms including synthesis of antibiotics, mycoparasitism and competition for nutrients against plant deleterious microorganisms. The sustainable approaches of Trichoderma including biofortification, bio-remediation and phyto-remediation as well as exploring future research opportunities will be also handled in this work.https://jenvbs.journals.ekb.eg/article_122164_6d49c264f5b010d23d9b52339c48ae29.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Effect of Irrigation Regime and Spraying Salicylic Acid on Characteristics and Quality of (Banzahir) Lime Fruits (Citrus aurantifolia B.) at Harvest, Marketing and Some Water Relations31333112330710.21608/jenvbs.2020.47625.1110ENReda KhaledDarweshCrop Water Requirement and field irrigation Department (CWRFID). Sakha Agric. Res. Station, Kafr El-Sheikh, EgyptMohamedHefzyDepartment of Water Requirement and Field Irrigation Research, Soils Water and Environment Research Institution, Agricultural Research Center&lrm;&rlm;, Giza, Egypt.AhmedMansourHorticultural Res. Inst. A.R.C., Egypt.Journal Article20201025Irrigation management is one of the most important factors for water saving, especially with limited water resources in Egypt. so, the present study was carried out during 2017 and 2018 on trees of Lime (Citrus aurantifolia), grown in sandy soil at Asyut Agriculture Research Station ARC, Asyut Governorate, Egypt, to elucidate the effect of different irrigation regimes; 100%, 80% and 60% of ETc and spraying (SA); with and without spraying on yield, fruit quality and marketability; room temperature and cold temperature. The results can be summarized as follows: irrigation with 100% ETc and spraying SA recorded the highest values of Fruit length, fruit width, Fruit weight and Yield compared with the other irrigation regimes. While, irrigation with 60% ETc and spraying SA recorded the highest values of irrigation water productivity and economic water productivity in both seasons. Also, irrigation fruits with 100% ETc and treated with SA during growth season induced the highest level of Juice weight %. Moreover, the obtained results indicated that irrigation fruits with 60% ETc and treated with SA decreased weight loss % and decay % while, increased TSS %, total acidity in fruit juice, and V.C content of mature fruit compared with the other treatments under marketability.https://jenvbs.journals.ekb.eg/article_123307_60e5a107c5aae4838f2c66f80e433550.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Can humic acid alleviate the adverse effect of elevated phosphorus application on yield and nutritive contents of maize grown on a calcareous soil?33334312329810.21608/jenvbs.2020.48032.1112ENMohamedAbd El- AzizSoil, Water and Environment Research Institute (SWERI),Agric.Research Center (ARC),GizaMohamed H.H.AbbasSoils and Water department, faculty of Agriculture, Benha University, EgyptAshrafEwisDepartment of Soils and Water, Faculty of Technology and Development, Zagazig University, EgyptJournal Article20201029Growing maize in calcareous soils requires adequate supply of phosphorus inputs, yet excessive P-applications may affect negatively micronutrients availability in soil, including Zn. Thus, the current study evaluates the ability of humic acid (HA) to counteract the negative effect of applied P on Zn-uptake by maize plants. To achieve this aim, a field experiment was conducted in a calcareous soil (CaCO3 =268.91 g kg-1) following a split plot design to study the interactions between different P-inputs (100, 125 and 150% of the recommended dose, applied in main plots) and available-Zn in presence and absence of HA (applied in sub-plots at either 2 or 4 kg HA ha-1). Results revealed that increasing the level of P-application raised significantly P availability and consequently its uptake by maize plants; thus, enhanced significantly plant growth parameters and grain yield. In this concern, 125% of the recommended P-dose recorded the highest partial-factor-productivity values. Likewise, application of HA raised significantly available-P content and improved considerably plant growth and grain yield, especially with increasing the rate of its application. On the other hand, increasing the level of P-fertilizers decreased significantly Zn-availability and uptake by plants; however, in presence of HA, this effect was counteracted. Although, this amendment recorded no significant effect on soil-Zn availability; however, it raised significantly its content in shoots but not in grains. In conclusion, HA improved significantly productivity of maize grown on a calcareous soil. This amendment not only improved the partial factor productivity of P-fertilizer, but also increased Zn-uptake by maize plants.https://jenvbs.journals.ekb.eg/article_123298_f301bf922e7128a2e1e03451d2c7ef20.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Effect of Integrated Fertilization with Inorganic, Organic Fertilizers in Presence of Enterobacter ludwigii Local Strain on Growth, Yield and Fruit Quality of Anna Apple Trees34536012875510.21608/jenvbs.2020.50074.1113ENHany MMohammedAbdelrahmanAgricultural Microbiology Department, Faculty of Agriculture, Benha University, Moshtohor, Qalyoubeia 13736, Egypt0000-0003-1496-0195Darwesh RagabDarweshHorticulture Research Institute, Agriculture Research Center, Giza, Egypt.Journal Article20201117The investigation was conducted to search for novice strains of plant growth promoting rhizobacteria (PGPR) and apply them to apple trees with organic fertilizer to reduce the amount of chemical fertilizers. Twelve different bacterial isolates were isolated on Ashby’s medium from rhizosphere of healthy fruit trees. Screening process was achieved based on in vitro plant-growth-promoting features. The more potent bacterial isolate (B3) was selected for the subsequent experiments. Morphological and cultural characteristics and 16S rRNA gene partial sequence were used for identification obtained isolate. The 16S rRNA gene sequencing results revealed that the nearest bacterial species to our isolate was Enterobacter ludwigii, KJ638989.1, with about 98% matching. During 2019 and 2020 field traits were carried out to evaluate the effective role of E. ludwigii strain combined with doses of inorganic and organic fertilizers on “Anna” apple trees growth, yield and fruit quality. Data revealed that inoculation by E. ludwigii combined with compost could compensate 50% of chemical fertilizer with significant increment in growth, yield and fruit quality. Since, data showed high yield and fruits quality by using 50% mineral-NPK, compost (14 kg/tree) and E. ludwigii inoculant followed by treatment of 75% NPK, compost (7 kg/tree) and E. ludwigii inoculant. Finally, the obtained strain, E. ludwigii could be capitalized on promoting plant growth for various fruit crops since it exhibits reasonable potential characteristics.https://jenvbs.journals.ekb.eg/article_128755_cee9289798b0af4afcae0df913904b3e.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Agro-Pollutants and their Nano-Remediation from Soil and Water: A Mini-Review36137512330910.21608/jenvbs.2020.47751.1111ENHassanEl-RamadySoil and Water Dept., Faculty of Agriculture, Kafrelsheikh University, Egypt0000-0002-1113-726XAhmedEl-HenawySoil and Water Dept., Faculty of Agriculture, Kafrelsheikh University, Egypt0000-0003-0190-6472MegahedAmerSoils Improvement Dept., Soils, Water and Environment Research Institute (SWERI), Sakha Station, Agricultural Research Center (ARC), 33717 Kafr El-Sheikh, Egypt0000-0002-6665-4838Alaa El-DeinOmaraAgriculture Microbiology Department, Soil, Water and Environment Research Institute (SWERI), Sakha Agricultural Research Station, Agriculture Research Center (ARC), 33717 Kafr El-Sheikh, Egypt0000-0001-5622-7501TamerElsakhawyAgriculture Microbiology Department, Soil, Water and Environment Research Institute (SWERI), Sakha Agricultural Research Station, Agriculture Research Center (ARC), 33717 Kafr El-Sheikh, Egypt0000-0001-9512-6826Abdel-MoetySalamaHorticulture Dept., Faculty of Agriculture, Kafrelsheikh University, 33516 Kafr El-Sheikh, EgyptAhmedEzzatHorticulture Dept., Faculty of Agriculture, Kafrelsheikh University, 33516 Kafr El-Sheikh, EgyptAly R.ElsherifHorticulture Dept., Faculty of Agriculture, Kafrelsheikh University, 33516 Kafr El-Sheikh, EgyptMohamedElmahroukHorticulture Dept., Faculty of Agriculture, Kafrelsheikh University, 33516 Kafr El-Sheikh, EgyptTarek A.ShalabyHorticulture Dept., Faculty of Agriculture, Kafrelsheikh University, 33516 Kafr El-Sheikh, EgyptArid-land Agriculture Department, College of Agricultural and Food Sciences, King Faisal University, Al-Hassa; KSAJournal Article20201026The human activities may include the agricultural, industrial and other activities. The agricultural sector is considered the main source for our life’s supplies. Thus,the agriculturalactivities or practices might result many pollutants such as applied mineral fertilizers, pesticides, effluents from domestic and industrial sewages and vehicular emissions.Therefore, a remediation to remove or decrease the pollutants in soil and water is needed for the environmental protection. This remediation has several classic strategies several years ago, but a promising and new approaches have been established particularly nano-remediation. This nano-remediation depends on the applied nanomaterials in removing pollutants from soils and water through nano-bioremediation and nano-phytoremediation. The most important nanomaterials that have the potential in removing pollutants from contaminated soils and water nano-silica, nano-zero-valent of iron, nano-sized ironsulfide particles, nano-ZnO and others. However, many challenges or open questions are still needing a justification because using of nanomaterials in higher concentrations are considered toxic to plants and agro-environment. Are these nanomaterials stable under environmental conditions or will be converted into toxic ones or still need to be identified for sustainablenano-remediation? Is there any possibility to enter the nanomaterials or other toxic compounds the food chain through these plants? Therefore, a lot of further questions and further research are needed concerning the nano-remediation in removal the agro-pollutants.https://jenvbs.journals.ekb.eg/article_123309_33e00d47d5e17c3cd8cbdbbe21fdfe4f.pdfThe National Centre for Information and Documentation (NIDOC), the Academy of Scientific Research and TechnologyEnvironment, Biodiversity and Soil Security2536-94154Issue 202020200201Sustainable Management of Kidney Bean Plants by Soil Application of Humic Substances and Foliar Application of Molybdenum .38139214085010.21608/jenvbs.2020.51641.1119ENEman MahmoudRashwanSoil fertility and plant nutrition department, soil,water, environment research instuteRiham Mohamed NaguibFaiyadSoil fertility and plant nutrition department, soil, water and environment institute. Giza.Rasha El-sayed HamedEl-mahdySoil fertility and plant nutrition department, soil, water and environment institute. Giza.Journal Article20201130Only few publications focus on the effect of humic substances plus foliar spraying with molybdenum on plants. Therefore, the objective of this study was to determine the influence of some humic substances (i.e., potassium fulvate and humate as a single treatment or in a combination) and the foliar application of molybdenum element (i.e., 0.0 and 50 mg L-1 as ammonium molybdate) on kidney bean (Phasuolas vlugaris L.; variety Nebraska) plants. The field trial was carried out in a private farm at Tanah Village, El-Mansoura District, El-Dakahlia Governorate, Egypt during two consecutive growing seasons (2017 and 2018). The experimental design was a split-plot with three replicates. The findings showed that the combined treatment of potassium fulvate with potassium humate under foliar application of Mo at rate of 50 mgL-1 was the superior treatment for vegetative growth criteria i.e. fresh and dry weights of shoot and plant height, chemical constituents in leaves i.e. chl.a, chl.b, chl (a+b), N, P, K , Mo and NPK nutrients uptake at a period of 45 days from sowing as well as yield i.e. pods and seeds weights and nutritional elements concentration in seeds i.e. nitrogen, phosphorus, potassium, molybdenum and NPK nutrients uptake at harvest stage of kidney bean plants. While the lowest values of all aforementioned traits were recorded with untreated plants (without both humic materials and Mo). Also, available N, P and K in soil after harvesting kidney bean plants pronouncedly differed due to all studied treatments.https://jenvbs.journals.ekb.eg/article_140850_769da3850d5e995e37e471a76d2b5c4b.pdf