Abd El-Rahem, W., Abo-Marzoka, E. (2020). Response of Rice Crop to Nitrogen Fertilizer Rates with Foliar Application with a Mixture of Potassium and Zinc on Growth and Yield. Journal of Plant Production, 11(12), 1283-1288. doi: 10.21608/jpp.2020.149798
W T. Abd El-Rahem; E. A. Abo-Marzoka. "Response of Rice Crop to Nitrogen Fertilizer Rates with Foliar Application with a Mixture of Potassium and Zinc on Growth and Yield". Journal of Plant Production, 11, 12, 2020, 1283-1288. doi: 10.21608/jpp.2020.149798
Abd El-Rahem, W., Abo-Marzoka, E. (2020). 'Response of Rice Crop to Nitrogen Fertilizer Rates with Foliar Application with a Mixture of Potassium and Zinc on Growth and Yield', Journal of Plant Production, 11(12), pp. 1283-1288. doi: 10.21608/jpp.2020.149798
Abd El-Rahem, W., Abo-Marzoka, E. Response of Rice Crop to Nitrogen Fertilizer Rates with Foliar Application with a Mixture of Potassium and Zinc on Growth and Yield. Journal of Plant Production, 2020; 11(12): 1283-1288. doi: 10.21608/jpp.2020.149798
Response of Rice Crop to Nitrogen Fertilizer Rates with Foliar Application with a Mixture of Potassium and Zinc on Growth and Yield
1Rice Research Department, Field Crops Research Institute, ARC, Giza, Egypt.
2Crop Physiology Research Department, Field Crop Res. Inst., ARC, Giza, Egypt.
Abstract
Two field experiments were conducted at Sakha Agricultural Research Station,Kafr El-Sheikh Governorate , Egypt, during 2018 and 2019 seasons.to to investigate the effect of different proportions of nitrogen rates with foliar potassium and Zinc their combined effect on growth and yield components .The treatments i.e.,45kgN/fad ,60kgN/fad,45Kg N/fad+spray with 2% K2O,45Kg N/fad+spray with 2 % Zn, 45Kg N/fad+spray with 1% K2O+1%Zn, 60 kg N/fad+spray with 2 % K2Oand 60 kg N/fad + spray with 2 % Zn, 60kg N/fad+spray with 1% K2O+1%Zn .The used variety was Sakha 107.The experiments were performed in Randomized Complete Block Design with four replications.The collected data include physiological traits, yield attributes yields and grain quality characteristics. The main obtained results are summarized as following all mistuned traits were significantly and pristinely responded to tested nitrogen treatment combined with foliar spray of K2O, Zn mixture in both study seasons .The highest means of dry matter, leaf area index ,crop growth rate, net assimilation rate , panicle number/m2, panicle length, panicle weight,filled grains numbers/panicle ,1000 grain weight. Grain, and biological yields and grain content of carbohydrates,crude protein and amylase were produced when rice plants received 60kgN/fad.+ mixture spray of K2O,Zn at 1% for each.The grain quality showed the same pattern of above mentioned traits. It could be concluded that high growth, yield attributes, grain yield and grain quality traits, as well as physiological parameters could be approached by apply 60kg N/fad along with foliar spray of K2O, Zn mixture twice at 15 and 30 days after transplanting
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