@article { author = {El-Dissoky, R. and Attia, A.}, title = {Influence of Nitrogen, Biofertilizer, Compost Addition and Sowing Dates on Wheat Grown in Upper Egypt}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {9}, number = {4}, pages = {155-164}, year = {2018}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2018.35696}, abstract = {Response of wheat yield to nitrogen fertilization is differing according to soil, fertilizer, application method, weather conditions, and sowing dates. Two field experiments were carried out during the two successive winter growing seasons of 2014/2015 and 2015/2016 at Kom Ompo Agriculture Research Station, Aswan Governorate, Egypt (24° 28' 38.604" N and 32° 56' 50.671" E) to evaluate the influence of three sowing dates (November 1st and 20th and December 10th) and five treatments of nitrogen fertilization (75 kg N fed-1, 56.25 kg N+ inoculation with biofertilizer, 56.25 kg N + 10 m3 compost, 37.5 kg N +biofertilizer+ twice N foliar spray and 37.5 kg N+ 10 m3 compost + twice N foliar spray) on wheat yield. Treatments were distributed in a Split Plot Design with three replicates; sowing dates in the main plots and nitrogen fertilization treatments in the sub plots. Results revealed that N-fertilization treatments 56.25 kg N fed-1+ biofertilizer inoculation and 37.5 kg N fed-1+ biofertilizer+ twice foliar spray of 1%N had superior effect on wheat yield, its components, protein content the uptake of NPK in grain and straw without signicant differences between them, and with the treatment of 37.5 kg N+ 10 m3 compost+ twice N foliar spray which recorded the highest yield. Sowing dates of wheat had significant effects on grain and straw yields, its components and the uptake of NPK; since the rank for their superior effects was as follows: 20Nov>1Nov>10Dec. Grain and straw yields increased with sowing wheat at November 20th by 10.68 and 14.70 % as compared with sowing at November 1 and by 40.52 and 29.26 % as compared with sowing at December 10th, respectively. For the economical return, N fertilization at a rate of 37.5 kg N+ biofertilizer inculation+ twice 1% N foliar spray recorded the highest net return (14017 L.E) per feddan as compared with other treatments. So, it could be concluded that and N fertilization at 37.5 kg N+ biofertilizer+ twice N foliar spray is the optimum treatment under these conditions with sowing wheat on November 20th, not only because it could rotaionlize mineral N fertilizer by 45% approximately, but also safeguard environment againist pollution.}, keywords = {Wheat yield,Upper Egypt,nitrogen,biofertilizer,compost and sowing dates}, url = {https://jssae.journals.ekb.eg/article_35696.html}, eprint = {https://jssae.journals.ekb.eg/article_35696_5b5e4a9c6e53a258fd17950fd189ce09.pdf} } @article { author = {El-Ashmouny, Amany and El-Naqma, Kholoud}, title = {Role of Application Method in Responses of Cotton Plants to Micronutrients and Potassium Humate}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {9}, number = {4}, pages = {165-172}, year = {2018}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2018.35713}, abstract = {Afield experiment was carried out in a clayey textured soil (Clayey, Smectitic, Superactive, Mesic, Typic) located at Sakha Agricultural Research Station farm, Kafr El-Sheikh Governorate, Egypt (30o 56 N latitude and 31o 05 E longitude) to study the effect of different application methods (foliar fertilization and seed coating) with mixture of some micronutrients (Fe, Mn, Zn) and potassium humate on cotton Giza CV 94 during summer seasons of 2015 and 2016. A split plot design was used with three replicates. The main plots were assigned with three application methods: foliar application, seed coating and (foliar + seed coating). The sub plots were assigned with three treatments of Micronutrients, potassium humate and mixture of (micronutrients + potassium humate) in addition to the control treatment. The obtained results can be summarized as follow:- Plant height and number of fruiting branches were increased by (spraying + seed coating) method during the two seasons. Meanwhile the fertilizer treatment of (micronutrients mixture + potassium humate) significantly increased plant height (cm) and number of fruiting branches.plant-1. Foliar spraying + seed coating treatment gave the highest values of number of open bolls, boll weight, seed index and seed cotton yield. fed-1., compared with the other two application methods. Plants sprayed or coated with mixture of (micronutrients + potassuim humate) caused a significant increase in number of bolls.plant-1, boll weight and seed index. Mix of (micronutrients + potassuim humate) produced the highest significant values of seed cotton yield.fed.-1, but untreated plants gave the highest values of earliness in the two season compared with other treatments. The highest values of the fiber fineness were obtained by spraying plants with  mixture of (micronutrients + potassium humate). On the other hand, coating seeds with (micronutrients + potassium humate) gave the highest values of fiber strength. Mixture of (micronutrients + potassium humate) increased the concentrations of N, P, K, Mn, Zn and Fe in cotton last mature leaves. Also, the highest values of N, P, K, Mn, Zn and Fe in cotton last mature leaves were obtained when (seeds coating and foliar) was used with mixture of (micronutrients + potassium humate).}, keywords = {Micronutrients,potassium humate,coating,Foliar and Cotton}, url = {https://jssae.journals.ekb.eg/article_35713.html}, eprint = {https://jssae.journals.ekb.eg/article_35713_01bc84245dc64af915fe65b8628d011d.pdf} } @article { author = {Bassouny, M.}, title = {Soil Shrinkage, Sealing Index and Hydro-Physical Properties of Vertisols as Influenced by Long-Term Cultivation Systems in Northern Egypt}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {9}, number = {4}, pages = {173-181}, year = {2018}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2018.35709}, abstract = {Soil shrinkage and sealing index are important for understanding water and solute transport in soils. Effects of long-term cultivation systems on the soil shrinkage, sealing and hydro-physical properties of Vertisols in Kafr El-Sheikh Governorate, Northern Egypt were studied. The cultivation systems were fruit trees (FT), field crops (FC), vegetables crops (VC), and non-cultivated soil (NC). Forty eight samples were collected from sixteen soil profiles (three layers: 0-30, 30-60 and 60-100 cm) from different locations. The studied parameters included coefficient of linear extensibility (COLE), shrinkage ratio (SR), potential linear extensibility (PLE), soil sealing index (SI), bulk density (BD), penetration resistance (PR), saturated hydraulic conductivity (Ks) and soil water content (SWC). Long-term cultivation improved soil shrinkage, sealing and hydro-physical properties. Soil organic matter (SOM) and silt + clay contents increased in VC and FC compared with FT and NC systems in all layers (p < 0.05). The BD and PR decreased in all systems, and in VC and FC systems it was prominent compared with NC system. Ks and SWC increased (p <0.05) under VC and FC than in NC system. Low COLE, SR and PLE occurred in all systems particularly in VC and FC system. The VC and FC reduced shrinkage hazards, while high COLE, SR and PLE occurred in NC, indicating shrinkage hazards.  The SI was significantly (p <0.05) affected by cultivation systems and sealing was low in soils of VC, FC and FT than NC. Each of COLE, SR and PLE showed a negative correlation (p < 0.01) with SOM, but a positive one with BD and PR (p < 0.01). Each of COLE and SR (p < 0.05) and PLE (p < 0.01) showed negative correlations with SWC and Ks.  SI showed a negative correlation with each of COLE, SR, BD and PR (p < 0.01) and PLE (p < 0.05), and a positive one with SWC and Ks (p < 0.05). VC and FC improved the soil shrinkage, sealing index and hydro-physical properties of Vertisols.}, keywords = {Shrinkage properties,Sealing index,Hydro-physical properties,Cultivation systems,Vertisols}, url = {https://jssae.journals.ekb.eg/article_35709.html}, eprint = {https://jssae.journals.ekb.eg/article_35709_d014dce4af80d6463bc52092240521c7.pdf} } @article { author = {El-Hamdi, Kh. and Abo El-Fotoh, H. and El-Seedy, M. and Fathallah, Maha}, title = {Yield and Chemical Composition of Sugar Beet in Response to Potassium Rates, Bio and Foliar Fertilizations}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {9}, number = {4}, pages = {183-189}, year = {2018}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2018.35692}, abstract = {A field experiment was conducted at Bilqas distrect, Dakahliya Governorate, Egypt to evaluate the effects of potassium rates, bio foliar fertilization on yield and quality of sugar beet (beta vulgaris L.) during 2014/2015 and 2015/2016 winter seasons. Split plot design with three replicates was performed. The main plots were assigned by three levels of potassium fertilization of (0, 24 and 48 kg K2O fed-1) added as potassium sulfate (48% K2O). The sub plots were occupied by (four treatments) 1-Untreated control. 2- bio-fertilizer (potassium solvent bacteria) Bacillus circulans 3-Foliar fertilization of potassium humate at the rate 1 L fed-1 per 400 liter water. 4- Foliar fertilization of boron at the rate 1 L fed-1 per 400 liter water. Data revealed that the highest mean values of fresh weights of shoots and roots, sugar yield (kg fed-1), N%, K%, sucrose% and quality% in roots of sugar beet were obtained from 48 kg K2O fed-1 fertilization with boron treatment compared with all the other treatments. Meanwhile, the lowest values were obtained from the control without K fertilization and without boron fertilization during both seasons. Sodium (Na %) decreased with increasing potassium fertilization in both seasons. It is worthy to that both bio K fertilization and K humate addition also had positive effects during both seasons.}, keywords = {Sugar beet,K %,Foliar fertilization,Boron,sucrose% and Sugar yield}, url = {https://jssae.journals.ekb.eg/article_35692.html}, eprint = {https://jssae.journals.ekb.eg/article_35692_251325138c53cd7f78f9dc1a92dfdfab.pdf} } @article { author = {El-Sanat, G.}, title = {Improving Irrigation Efficiencies through Different Methods of Land Leveling and Irrigation Discharge under Using Gated Pipes at North Delta}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {9}, number = {4}, pages = {191-196}, year = {2018}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2018.35704}, abstract = {A field trial was conducted through summer season of 2016 at Sakha Agricultural research Station Farm, Kafr El-Sheikh Governorate. The purpose of the study was to investigate the effect of four methods of land leveling (traditional land leveling, precision land leveling, ground surface slope of 0.05% and 0.1% as main plots and three irrigation water discharge (2.0, 2.5 and 3.5 L.Sec-1 m-1) as sub plots on cotton yield and its components, some water relations and irrigation efficiencies. The results revealed that the ground surface slope of 0.1% and 0.05% and precision land leveling lead to increasing the seed cotton yield by 21.8, 15.12 and 5.15% compared to traditional land leveling, respectively. Also, irrigation water discharge at 2.5 and 3.5 L.Sec-1 m-1 raised seed cotton yield by 11.61 and 5.13% compared to 2.0 L.Sec-1 m-1. The achieved results indicated that the land leveling of ground surface slope of 0.1% and irrigation 2.5 L.Sec-1 m-1 were the best treatment in increasing the boll weight and earliness percentage. Respecting to irrigation water saving, data demonstrated that the land leveling at 0.1% and 0.05% ground surface slope saved irrigation water by 33.57% and 21.93% compared to traditional land leveling. Data indicated that the interaction between land leveling and 0.1% ground irrigation water discharge at 3.5 L.Sec-1 m-1 obtained the highest values of water distribution efficiency, water application efficiency, consumptive use efficiency, water productivity and productivity of irrigation water.}, keywords = {Cotton,crop water productivity,irrigation discharge,Land leveling,vertisol}, url = {https://jssae.journals.ekb.eg/article_35704.html}, eprint = {https://jssae.journals.ekb.eg/article_35704_01dc2e2be4c66c318f8315041b14c756.pdf} } @article { author = {Omar, M. and Ramadan, A.}, title = {Response of Carrot (Daucus carota L.) to Foliar Application of Potassium Fertilizers and some Soil Amendments under Clay Soil Conditions}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {9}, number = {4}, pages = {197-202}, year = {2018}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2018.35701}, abstract = {To study the response of carrot crop (Daucus carota L.) to foliar application of different potassium fertilizers and some soil amendments i.e., magnetite iron and humic substances (granules or powder) under clay soil conditions, two field experiments were conducted during winter seasons of 2014 and 2015 at the Horticulture Experimental Station of Agriculture Ministry, El-Baramon Experimental Farm, Dakahlia Government, Egypt. The obtained results revealed that humic substances granules or magnetic iron caused marked increases on vegetative growth, yield and NPK uptake in both shoots and roots of carrot plants. Potassium foliar application caused significant increasing on previously mentioned characters as well as carbohydrate and carotenoids content in roots. In addition, potassium foliar application caused significant increasing on previously mentioned characters, which showed a progressive increase in its content with application KNO3 compared with other sources of potassium. There were statistically significant increases in plant growth, yield, carotenoids, carbohydrate and NPK contents of carrot due to humic substances granules treatment especially under application of potassium nitrate. Finally, the foliar application of potassium nitrate integrated with humic granules or magnetic iron was the best combination and it is recommended for increasing productivity and improving root quality of carrot (cv. Chantenay) under clay soil conditions.}, keywords = {humic substances (granules and powder),Magnetic iron,K-foliar application,carrot plant}, url = {https://jssae.journals.ekb.eg/article_35701.html}, eprint = {https://jssae.journals.ekb.eg/article_35701_acd0ca1387dc37902eb55c22a8e0c837.pdf} } @article { author = {Mohamed, W. and Helaly, A.}, title = {Response of Moringa Plants to Mineral, Organic and Bio-Fertilizers Mixtures}, journal = {Journal of Soil Sciences and Agricultural Engineering}, volume = {9}, number = {4}, pages = {203-209}, year = {2018}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3685}, eissn = {2090-3766}, doi = {10.21608/jssae.2018.35688}, abstract = {This experiment was conducted at the Agriculture Experiments and Research Center, Minia University during the two successive seasons of 2015/2016 and 2016/2017 to study the response of Moringa oleifera plants to mineral, organic and bio-fertilizers mixtures. Moringa seedlings were grown on soil enriched with 0, 5,10 and 15 ton/fed of compost as a main split plot, while the sub-plots included control, full dose of NPK,75%NPK+a mixture of bio-fertilizers "effective microorganisms (EM) + phosphorein", and this mixture of bio-fertilizers.The results showed that organic fertilizer, bio-fertilizers and NPK significantly improved the growth and seed yield of the Moringa plants in both seasons. The highest Moringa seed yield was for plant fertilized with bio-fertilization + 75% NPK and 15 ton/fed compost, whereas, the control plants had the lowest seed yield during both seasons. In all cases, bio-fertilization + 75% NPK was more effective in increasing all investigated growth and yield parameters than was 100% NPK or bio-fertilization under the same compost treatments. This trend was coincided with the plant content of the photosynthetic pigments and NPK content. From the results of this study, moringa plants grown under these experimental conditions achieved the highest growth and yield parameters following fertilization with bio-fertilization + 75% NPK at 15 ton/fed of compost.}, keywords = {}, url = {https://jssae.journals.ekb.eg/article_35688.html}, eprint = {https://jssae.journals.ekb.eg/article_35688_499e44352a1442cccf3f40eeda3fa668.pdf} }