Author(s):

Jitendra Kumar Verma, Akhtar Ali, Harikesh and Shivam

Abstract: The present investigation was conducted with the objective to know the effect of various nutrient management modules on growth and yield of high yielding varieties of rice (Sarjoo-52 and NDR-359). The study was comprised six treatments of nutrient management modules (a) M₁ -100% RDF of N.P.K (120:60:60kg NPK ha^-1), (b) M₂-120% RDF of NPK (150:75:75 kg NPK ha^-1), (c) M₃ -150% RDF of N.P.K (180:90:90 kg NPK ha^-1), (d) M₄100% RDF of NPK (120:60:60 kg NPK ha^-1) + 25 kg ZnSO₄ ha^-1, (e) M₅ - 120% RDF of NPK (150:75:75 kg NPK ha^-1) + 25 kg ZnSO₄ ha^-1 and (f) M₆ -150% RDF of NPK (180:90:90 kg NPK ha^-1) + 25 kg ZnSO₄ ha^-1. The present study revealed that the maximum value of number of tillers hill^-1, plant height (cm), dry matter accumulation (g plant^-1), days taken to panicle initiation and days taken to physiological maturity were recorded under M₆ - 150% RDF of N.P.K (180:90:90 kg NPK ha^-1) + 25 kg ZnSO₄ ha^-1 which was significantly superior over rest of the of the nutrient management modules. The application of module M₆ -150% RDF (180:90:90 kg NPK ha^-1) + 25 kg ZnSO₄ ha^-1 with variety Sarjoo-52 produced maximum growth attributes, grain and straw yield. The study concluded that nutrient management modules M₆ -150% RDF (180:90:90 kg NPK ha^-1) + 25 kg ZnSO₄ ha^-1 and variety Sarjoo-52 for obtaining maximum yield and productivity of rice.

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