Author(s):

Ravindra Kumar, Vivek Kumar Sandilya, Swapnil Barua and PS Rathiya

Abstract: Field Experiment was conducted at instructional cum Research Farm of Rajmohini Devi College of Agriculture and Research Station, Ambikapur (C.G.) during kharif season of 2016-17 to study the effects of nutrient management on yield and yield attributes of high yielding rice (Oryza sativa L.) varieties. The experiment was laid out in a split plot design with three replications. The treatments consisted of four nutrient management practices viz. M₁-RDF (100: 60: 40 kg N:P₂O₅:K₂O ha^-1), M₂-150% RDF, M₃-RDF (N– LCC) (Basal application of 30% N and full P₂O₅+ K₂O and top dressing of Nitrogen as per LCC) and M₄-Soil test based recommended dose for 7.0 t ha^-1 grain yield(214: 42: 111 kg N:P₂O₅:K₂O ha^-1) as main plots and five rice varieties viz. Rajeshwari, Durgeshwari, Maheshwari, Karma masuri and Indira Aerobic-1 as sub plots. Among the nutrient management, highest yield attributes were recorded under treatment M₄-Soil test based recommended dose for 7.0 t ha^-1 grain yield (214: 42: 111 kg N:P₂O₅:K₂O ha^-1) which was superior over other rest of the nutrient management practices. Among the varieties, longest panicle (24.56 cm) was measured in variety Indira aerobic-1, highest number of grains panicle^-1 (151.74) and number of filled grains panicle^-1 (126.66) was recorded with Karma masuri, highest number of panicle (367.00 m^-2), test weight (31.27 g), grain yield (60.83 q ha^-1), straw yield (117.96 q ha^-1) and harvest index (34.17%) was recorded with variety Maheshwari.

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