Production and economics of irrigated transplanted basmati rice (Oryza sativa) as influenced by substitution of nutrients through organics in Jammu region of India

A field experiment was conducted during the rainy (kharif) season 2015 and 2016 at Chatha, Jammu and Kashmir, to evaluate the effect of substitution of nutrients through organics on production and economics of irrigated transplanted basmati rice (Oryza sativa L.). The study revealed that, plant height, dry-matter accumulation, tillers/hill, effective panicles/m², grains/panicle, grain and straw yields of basmati rice were significantly highest in 100% NPK (recommended dose of fertilizers-RDF) than 50% NPK + 50% N through vermicompost and FYM (1: 1), 50% NPK + 50% N through vermicompost, 50% NPK + 50% N through FYM, 25% NPK + 75% N through vermicompost and FYM (1: 1), 25% NPK + 75% N through vermicompost, 25% NPK + 75% N through FYM, 100% N through vermicompost and FYM (1: 1), 100% N through vermicompost and 100% N through FYM, but were statistically at par with 75% NPK + 25% N through vermicompost and FYM (1: 1); 25% yearly replacement of RDF with vermicompost and FYM (1:1) on N basis; 75% NPK + 25% N through vermicompost; 25% yearly replacement of RDF with vermicompost on N basis, 75% NPK + 25% N through FYM and 25% yearly replacement of RDF with FYM on N-basis during both the years. Likewise, the maximum net returns (60,790 and 71,322 were realized with 100% NPK followed by treatment 75% NPK + 25% N through vermicompost and FYM (1: 1) with the net returns to the tune of (54,426 and 68,129/ha) during 2015 and 2016 respectively.