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EFFECT OF INTEGRATED NUTRIENT MANAGEMENT ON NITROGEN UPTAKE AND YIELD OF WHEAT CROP (TRITICUM AESTIVUM L.)

Anuj Kumar, Uma Shankar Tiwari, Kamlesh Kumar Yadav*, Virendra Singh and Pankaj Kumar Singh

A field experiment was conducted during the rabi season of 2013-14 and 2014-15 at Chandra Shekhar Azad University of Agriculture and Technology, Kanpur to evaluate the different levels of INM on nitrogen uptake and yield of wheat. The experiment was comprising sixteen treatments viz. T₁-control, T₂-100%RDF, T₃-100%RDF+S, T₄-100%RDF+S+Zn, T₅-100% R.D.F.+S+Zn+bio-fertilizer (Azotobactor+P.S.B.), T₆-100% R.D.F.+25% N through F.Y.M., T₇-100% R.D.F.+25% N through F.Y.M.+S, T₈-100% R.D.F.+25% N through F.Y.M.+S+Zn,T₉-100%R.D.F.+25% N through F.Y.M.+S+Zn+bio-fertilizer (Azotobactor+P.S.B.), T₁₀-100% R.D.F.+25% N through vermi compost, T₁₁- 100% R.D.F.+25% N through vermi compost+S+Zn+bio-fertilizer (Azotobactor+P.S.B.), T₁₂-75% R.D.F., T₁₃-75% R.D.F.+25% N through F.Y.M., T₁₄-75% R.D.F.+25% N throughvermi compost, T₁₅-75% R.D.F.+25% N through F.Y.M.+S+Zn+bio-fertilizer (Azotobactor+P.S.B.) and T₁₆-75% R.D.F.+25% N through vermi compost+ S+Zn+bio-fertilizer (Azotobactor+P.S.B.). Maximum accumulation of N at late tillering, milking and at harvest in grain and straw was recorded with T₁₁ (100%R.D.F.+25%N through vermicompost+S+Zn+bio-fertilizers (Azotobactor+ P.S.B.) followed by T₉ (100% R.D.F.+25% N through F.Y.M.+S+Z+bio-fertilizers (Azotobactor+P.S.B.) and minimum at control (T₁) during both the years.

Highest grain yield was recorded in 46.50 and 44.70 q ha^-1 with T₁₁ (100% R.D.F.+25% N through vermin compost+S+Zn+bio-fertilizers (Azotobactor+P.S.B.) which was 104% and 108% higher to the lowest yield 22.80 and 21.50 q ha^-1 at control T₁ and 32% and 34.5% higher to 100% RDF treatment (T₂ ). The maximum cost of cultivation Rs. 32270 and Rs. 35267, gross return Rs. 89032 and Rs. 90530 and net return Rs. 56762 and Rs. 55263 with the application of 100% R.D.F.+25% N through vermin compost+S+Zn+bio-fertilizers (Azotobactor+P.S.B.) T₁₁ followed by T9 (100% R.D.F.+25%N through F.Y.M.+S+Zn+bio-fertilizers (Azotobactor+P.S.B.) and minimum was recorded with control (T₁₎ during both year, respectively.