Effect of various nutrient management modules on growth and yield traits of high yielding varieties of Rice (Oryza sativa L.)

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.