Effect of Integrated Nutrient Management on Soil Properties, Yield and Nutrient Uptake in Rice-Greengram Cropping System in an Inceptisol of Andhra Pradesh

摘要

Studies on the effect of integrated nutrient management (INM) on kharif rice and cumulative and residual effects on rabi greengram were conducted during 2009 and 2010 at Regional Agricultural Research Station, Anakapalle. Kharif 'rice was grown with 10 treatments, consisting of INM practices, whereas rabi greengram was grown by dividing the plots into two, one receiving 50% recommended fertilizers and the other without any fertilizers. Available nutrient status and their uptake were higher with INM practices, specially when vegetable market waste vermicompost was applied. With continuous chemical farming, there was not much change in the soil nutrient status, nutrient uptake and yield in both the crops. However, a distinct decrease was noticed in all the values when crops were raised without any external supplementation of nutrients. The highest profitable treatment in both the crops was found to be 75% recommended dose of nitrogen + vegetable market waste vermicompost @ 2.5 t ha1.