Nutrient management in wheat (Triticum aestivum L.) for increase grain yield, nutrient-use efficiency and profitability

A field experiment was conducted during the winter (Rabi) season 2015-16 at Agriculture Farm, J. V. Collage Baraut (Baghpat) Uttar Pradesh to study the effect of nutrient management (N.P.K. levels) on growth and yield of wheat (Triticum aestivum L.). The experiment was a Randomized complete block design with 3 replication and 8 treatment (control, recommended dose of fertilizer RDF 150 N+60 P205 + 40 K2O kg/ha), 150% RDF, 150% PK, 150% NK, 150% NP, Green seeker–guided nitrogen application at the 2nd Irrigation P2O5 and RDF+10t FYM/ha: Various yield attributes of wheat showed significant Variation under different levels of NPK and Green seeker-based precision, nutrient management. It was observed that an application of 150% of RDF 225 N + 90 P2O5 + 60 K2O kg/ha) resulted in the highest yield and net return. However Green Seeker-guided nitrogen application saved fertilizer nitrogen (32 kg/ha) without significant reduction in yield than control recommendation of recommended dose of fertilizer in HD 3226 wheat. In terms of grain–yield by 150% NPK compared to RDF and 7.8% yield increase over 150% N P. in case of economic returns, 12.95% profit increase was achieve by 150% RDF over RDF. So 150% NPK application to wheat crop at Baraut (Baghpat) Uttar Pradesh is fruitful for farmer's point of view for improvement of low N-use efficiency.