Impact of nutrient management technologies, soil biomass and enzymatic activities in transplanted rice (Oryza sativa L.) under irrigated domains of eastern plain zone in India

The experiment was done during kharif season 2016 at farmer field in Bhadohi district near Varanasi to ascertain the validity of developed fertilizer adjustment equations based on Soil Test Crop Response for targeted yield of this crop. These equations were compared with other fertilizer use practices such as farmer’s practice and general recommendation. Fertilizer doses for different crop under STCR based fertilizers application treatment were calculated using fertilizer adjustment equations for targeted yield of different crops. The percent increase in yield ware 17.11 and 37.79 with targeted yield 40q ha-1 and 50q ha-1 , respectively over RDF. T