Effect of integrated nutrient management on yield attributes, yield and nutrients uptake in rice (Oryza sativa L.)

A field experiment was conducted at Fertilizer Research Station, Pura of C.S. Azad University of Agriculture and Technology, Kanpur during Kharif 2007 and 2008 to find out the affect of integrated nutrient management on yield attributes and yield and nutrient uptake in rice performance. Addition of paddy straw, FYM, GM, Vermi-compost and biogas slurry powder each @ 5t/ha, bio-fertilizers (BGA+BSP) and FYM+ bio-fertilizers were super imposed over 100% NPK fertilizers in each case. Application of FYM + Bio-fertilizers gave highest grain (50.83 and 49.24q/ha) and straw yield (60.17 and 58.76q/ha) and NPK uptake (193.90 and 182.55 kg/ha) and NPK use efficiency (11.47 and 11.17 kg grain/kg NPK applied). It was followed by the treatment of green manure with 48.17 and 46.34 q/ha grain yield, 55.83 and 55.66 q/ha straw yield and 178.05 and 169.82 kg/ha NPK uptake and, 10.41 and 10.01 kg grain/kg NPK use efficiency. All treatments of integrated nutrient management attained higher crop yields and yield attributes compared to 100% NPK alone application. After rice harvest, soil properties improved due to integrated nutrient sources where maximum improvement was recorded with FYM + Bio-fertilizers, GM, and FYM treatments.