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Articles by Waleed M.E. Fekry
Total Records ( 2 ) for Waleed M.E. Fekry
  Waleed M.E. Fekry , Mohamed A. Rashad and Ayad Hani Alalaf
  Background and Objectives: Minia governorate in Egypt as an arid land area suffers from high salinity in both soil and water used for irrigation, which causes an obstacle to the growth of date palm which is one of the promising crops. The objective of this study was to alleviate the adverse effect of salinity on growth and fruiting of Barhi cultivar by using humic acid as a soil addition at rate 50 mL per palm with foliar application of selenium and silicon both of them at 25 and 50 ppm single or combined. Materials and Methods: This study was carried out during two successive seasons (2018 and 2019) by choosing of 21 palms seven treatments each treatment replicated 3 replicates, the cultivation space was 8 by 8 m apart and the age of palms was about 8 years, in private orchard located in desert of west Samalout district, Minia governorate, Egypt. Results: The using of humic with application of selenium and silicon at high concentrate was very effective in enhancing the vegetative growth characters like total chlorophylls and nutritional statute of leaves (N, P, K, Ca and Mg) compare to control (untreated trees). The application of silicon at 50 ppm with humic acid was better than the using of selenium at 50 ppm with humic acid and also better of using both of them individual at 25 ppm and very near to use both of elements at 25 ppm with humic. Conclusion: Application of both selenium and silicon at 50 ppm with Humic was the superior treatment in yield, bunch weight, fruit physical and chemical characters.
  Waleed M.E. Fekry and Moustafa A. Aboel-Anin
  Background and Objective: Potassium plays a very important role in plant physiology and plays a significant role in plant resistance to biotic and abiotic stresses. The objective of this study was to compare the effect of using different sources of potassium fertilizers as foliar spray on the production and quality of early sweet grapes cv. under salinity stress. Materials and Methods: This study was carried out during two successive seasons (2019 and 2020) in a private vineyard orchard at west Samalout, Minia Governorate by choosing of 21 vines seven treatments each treatment replicated 3 replicates The chosen vines were 7 years old, grown in a sandy soil, planted 2×3 m, irrigated with drip irrigation system, all of the vines took the same fertilization treatment except the foliar application of potassium fertilizers. Results: Using of (K-MCT) was very effective in enhancing the vegetative growth characters like main shoot length, no of leaves per shoot, cane thickness, leaf area, total chlorophylls, the nutritional statute of leaves (N, P, K, Mg) and all of examined fruiting characters compare to control (untreated vines) and better than using of both of potassium sulphate and potassium Thio-sulphate at its two concentrates. The spraying of (K-MCT) at 500 ppm was significant to use it at 200 ppm. The using of (KTS) at 500 then at 200 ppm respectively gave results better than (K2SO4) but lower than (K-MCT) at their two concentrates. When using of two concentrates of (K2SO4) wasn’t significant. Conclusion: Using of (K-MCT) at 500 ppm was the superior treatment in all of the parameters which has been examined like vegetative growth characteristics (pigments and nutrient contents of leaves), fruit characterizes and yield.
 
 
 
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