Badawi, M., Attia, A., Seadh, S., Awad, A. (2020). Effect of N-Levels and Foliar Application Treatments on Productivity of Sunflower تأثير مستويات السماد النيتروجينى ومعاملات الرش الورقى على إنتاجية عباد الشمس. Journal of Plant Production, 11(8), 691-695. doi: 10.21608/jpp.2020.112892
M. A. Badawi; A. N. E. Attia; S. E. Seadh; Amal E. E. Awad. "Effect of N-Levels and Foliar Application Treatments on Productivity of Sunflower تأثير مستويات السماد النيتروجينى ومعاملات الرش الورقى على إنتاجية عباد الشمس". Journal of Plant Production, 11, 8, 2020, 691-695. doi: 10.21608/jpp.2020.112892
Badawi, M., Attia, A., Seadh, S., Awad, A. (2020). 'Effect of N-Levels and Foliar Application Treatments on Productivity of Sunflower تأثير مستويات السماد النيتروجينى ومعاملات الرش الورقى على إنتاجية عباد الشمس', Journal of Plant Production, 11(8), pp. 691-695. doi: 10.21608/jpp.2020.112892
Badawi, M., Attia, A., Seadh, S., Awad, A. Effect of N-Levels and Foliar Application Treatments on Productivity of Sunflower تأثير مستويات السماد النيتروجينى ومعاملات الرش الورقى على إنتاجية عباد الشمس. Journal of Plant Production, 2020; 11(8): 691-695. doi: 10.21608/jpp.2020.112892
Effect of N-Levels and Foliar Application Treatments on Productivity of Sunflower تأثير مستويات السماد النيتروجينى ومعاملات الرش الورقى على إنتاجية عباد الشمس
Agronomy Department, Faculty of Agriculture, Mansoura University, Egypt.
Abstract
Field experimentations were carried out to examine the impact of N-levels and foliar application treatments on yield characters of sunflower cultivar Sakha-53 during 2016 and 2017 seasons at El-Muhandis Village in Sherbin District, Dakahlia Governorate, Egypt. Experimentations were conducted using a strip plot design with three replicates. Vertical plots were devoted to nitrogen fertilizer rates (20, 25 and 30 kg N/fed). While, six spraying transactions i.e. without, water spraying, amino acids (AA), yeast extract (YE), commercial NPK + micro elements (Fe, Mn and Cu) as Estima-Green powder, and the mix of AA, YE and commercial NPK + micro-elements were distributed on the horizontal plots. Fertilizing with 30 kg N/fed yielded the maximum rates of yield and its attributes during 1st and 2nd years. Fertilizing with 25 kg N/fed came after the maximum rate of N fertilizer. The spraying two times with the mix of AA, YE and commercial NPK + micro-elements gave the maximum rates of crop and its components in both years, then spraying sunflower plants twice with commercial NPK + Micro (1.5 g/L) in every spray. It can be accomplished that sunflower cultivar Sakha-53 with 25 kg N fed-1 as well as spraying twice with the mix of AA, yeast extract and commercial NPK + Micro so as to preserve high productivity at the same time decrease production expenses and ecological contamination under the ecological circumstances of Dakahlia- Governorate, Egypt.
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