A.K.S. Parihar, Suresh Kumar and Adesh Kumar
Department of Soil Science and Agricultural Chemistry, Narendra Deva University of Agriculture and Technology Kumarganj, Faizabad-224 229 U.P. INDIA
Abstract : The field experiment was carried out at Instructional Farm of Narendra Deva University of Agriculture and Technology, Kumarganj, Faizabad (U.P.) during Kharif season of 2010 and 2011 to study the response of hybrid rice to Integrated Nutrient Management on grain yield, nutrient uptake and economics of various treatments and their effect on physico-chemical properties of soil after harvest of the crop. The experiment was carried out on silt loam soil having pH 8.9, EC 0.4 dSm-1 organic carbon 3.6mg kg-1, Available N 194.00, P2O5 14.46and K2O 246.80 kg ha-1. The Seven treatments of integrated nutrient management practices (T1 -100% NPK, T2 -75% NPK T3 –50% NPK, T4 -75%NPK +25%FYM-N, T5 -50%NPK +50%FYM-N T6 -25%NPK+75%FYM-N and T7 -100%FYM-N) were tested in randomized block design, replicated thrice. The maximum grain yield (69.26 qha-1), straw yield (83.22qha-1), nutrient uptake of N (155.32 kg ha-1), P (44.15 kgha-1), K (158.23kgha-1) were recorded with the application of 75%NPK +25%FYM-N (T4) which were significantly superior over 75%NPK and 50% NPK + 50 % FYM-N, minimum was recorded with 100 % N through FYM. The maximum gross income Rs. 70489.0 ha-1 was recorded with 75%NPK +25%FYM-N (T4) followed by 100%NPK ( T1).
Keywords : INM, hybrid rice, sodic soil
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