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Background: The present investigation was concentrated to determine the nutrient uptake capacity of different varieties of rice (Oryza sativa L.) under delayed planting condition. The purpose of the study is to evaluate the nutrient content in straw and grain in different varieties of rice to understand the nutrient acquisition capacity.Methods: The experiment was conducted during kharif-2018 in a split plot design with three replications at Agricultural Research Farm, BHU, Varanasi with a combination of four rice varieties (HUR-3022, DRR-44, HUR-4-3 and HUR-105) as subplot factor and three dates of planting (06/09/2018, 13/08/2018 and 20/08/2018) as main-plot factor.Result: Among the varieties, DRR-44 was observed efficient for N, P and K absorption under timely planting conditions and recorded higher N content (1.01%) than HUR-3022 (0.91%) and HUR-105 (0.86%). The P (0.45%) and K (0.29%) content were observed highest for the variety DRR-44 on the first date of planting (06/08/2018). Maximum N, P and K uptake by grain and straw were recorded in DRR-44 followed by HUR-3022 and HUR-105. DRR-44 was also the highest grain and straw yielder. Thus, improved varieties of rice with higher nutrient use efficiency should be the priority for quality and higher yield of straw and grain of the crop.

indian journal of agricultural research

​Nutrient (Nitrogen, Phosphorous and Potassium) Uptake Capacity and Efficiency of different Elite Rice (Oryza sativa L.) Varieties under Delayed Planting Conditions

​Nutrient (Nitrogen, Phosphorous and Potassium) Uptake Capacity and Efficiency of different Elite Rice (Oryza sativa L.) Varieties under Delayed Planting Conditions

Nutrient (Nitrogen, Phosphorous and Potassium) Uptake Capacity and Efficiency of different Elite Rice (Oryza sativa L.) Varieties under Delayed Planting Conditions