Improvement of productivity and profitability in wheat by nitrogen and bio-fertilizer in north western plain zone

A field experiment was conducted during winter (Rabi) season of 2019-20 at Agricultural Research Farm, Department of Agronomy, R.B.S. College, Bichpuri, Agra (U.P.) the investigation entitled effect of bio fertilizers on nitrogen use efficiency and productivity of wheat (Triticum aestivum L.). The variables involve in this study four nitrogen levels viz. N₁ (60 kg ha^-1) N₂ (90 kg ha^-1), N₃ (120 kg ha^-1) N₄ (150 kg ha^-1) was sown with three biofertilizers such as (Control-B₀, Azotobacter -B₁, and Azospirillum-B₂). Thus in all 12 treatments combinations were compared in a Split plot design having cultivars sown in main plots nitrogen levels and sub plot in biofertilizers with four replications. The experimental results revealed that wheat crop nitrogen levels N₄ (150 kg ha^-1) + B₂ (Azospirillum) obtained significantly higher grain yield (54.71 q ha^-1) and straw yield (91.04 q ha^-1) followed by nitrogen levels N₁, N₂, N₃ and Bio-Fertilizer levels B₀ (control), B₁ (Azotobacter).