Present investigation is a part of long term experiment which was started in 1986-87 at Model Agronomic Experimental Farm, Regional Agricultural Research Station, Karjat, Dist. Raigad, Maharashtra (18.920 N latitude, 73.330 E longitude and 52.0 m altitude) on yield and uptake of nutrients in rice-rice cropping system. For present investigation 31thcycle rice crop was grown as 62th crop during kharif and 63th crop during Rabi-hot weather. Long term application of Integrated Nutrient Management (INM) increase grain yield (25.07, 22.87 to 57.52, 57.87q ha-1) and straw yield (30.65, 28.14 to68.36, 67.94q ha-1) in Kharifrice and Rabi-hot weather Rice respectively. Higher rice grain yields were observed in T6 (receiving50 per cent RDF+ 50 per cent RDN through FYM to Kharif rice and 100 per cent RDF through inorganic fertilizers during Rabi ), while least was obtained in control during both kharif season and Rabi season. The uptake pattern of nutrients in both of the rice variety (Palghr -1 during Kharif and KJT-3 in Rabi season) followed the same trend. Adoption of INM practices saved 50 per cent of recommended dose of nitrogen with incorporation of FYM as organic source of nutrient in rice-rice cropping system in long run.
INM, Rice –Rice cropping system, INM in cropping system,NPK content, NPK uptake in rice
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