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Studies on nitrogen and phosphorus management in Wheat (Triticum aestivum L.emend Fiori & Paol) under rainfed conditions of Jammu and Kashmir
Abstract
A field experiment was conducted to evaluate the effect of three levels each of nitrogen (0, 60 and 120 kg/ha) and phosphorus (0, 40 & 80 Kg/ha) on Wheat (Triticum aestivum L.emend Fiori & Paol) cultivar ‘VL 907’ during Rabi 2013-14 and 2014-15 at Regional Agricultural Research Station Rajouri, SKUAST-Jammu under rainfed conditions of Jammu and Kashmir. Application of graded levels of nitrogen and phosphorus progressively improved growth and yield attributes but in a decreasing order. There was a progressive increase in grain yield of wheat with each increment from 60 to 120 kg N ha-1 from the crop fertilized being maximum from 120 kg P ha-1. Similarly, application of 80 kg/ha resulted higher grain yield than the yield obtained in control. Lowest plant height, number of effective tillers per plant, panicle length, dry matter per plant, number of grains per panicle, weight of grains per panicle, grain yield, straw yield and biological yield was observed in 0 and 50 per cent nitrogen and phosphours. Various crop traits such as number of fertile tillers, 1000-grain weight and number of grains per spike were significantly influenced by nitrogen and phosphorus application. Similarly, fertilization with at 120 kg N ha-1 and 80 kg P ha-1 maximally improved all these traits in both the years.
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