Effect of Integrated Nutrient Management on Soil Fertility and Productivity on Wheat Crop

摘要

A field experiment was conducted during Rabi season 2013-14 and 2014-15 on sandy loam soil to study on crop research Centre Chirori of Sardar Vallabhbhai Patel University of Agriculture and Technology; Meerut utter Pradesh (India). The results revealed that application if 125% recommend dose fertilizer of NPK were significantly higher plant height at different stages, number of spikelet's spike-1,Number of grains spike-1, Test weight (g) than the other treatments during both the years. Application of 125% recommended dose fertilizer recorded significantly highest grain yield 49.73 to 47.75 q ha-1 during 2013-14 & 2014-15, respectively. Among the various treatments where 125% NPK was applied proved to be superior and it statistically at par with T₂ (100 % NPK) and T11 (75 % NPK + vermicompost @ 2.5 t ha-1 + phosphorus solubilizing bacteria + Azotobacter), in terms of growth, yield attributes and yields during first & second years. Moreover, the application of organic in integration with inorganic fertilizers could also maintain the soil fertility which is much important for sustainable crop production. The organic carbon and available NPK in the soil after harvest increase with the combined application of organic and inorganic with Biofertilizer. Integration of 75% NPK with vermicompost @ 2.5 t ha-1 + phosphorus solubilizing bacteria + Azotobacter was found better by improving the residual soil fertility status after the harvest of the wheat crop.