A field experiment was conducted to study the on farm crop response to plant nutrients in pre dominant cropping system . rice, (Oryza sativa) - chickpea (Cicer arietinum) and their impact on productivity, soil fertility and economics at Kabirdham district of Chhattisgarh state during 2013-14 and 2014-15. The results revealed that application of 100 kg N, 60 kg P2O5, 40 kg K2O and 20 kg ZnSO4 /ha to rice and 20 kg N, 50 kg P2O5, 20 kg K2O /ha to chickpea recorded significantly higher grain and straw/ haulm yields. Rice equivalent yield ( q/ha), net returns (Rs 74,391), benefit cost ratio () and total NPK uptake by rice-chickpea cropping system ( kg/ha) were recorded over rest of the treatments. This treatment also recorded the maximum production efficiency ( kg/ ha/day). Response studies indicated that maximum response was noted with NPK in Rice ( kg/kg) and N in chickpea ( kg/kg). | Response of plant nutrients on soil fertility productivity and profitability of rice Oryza sativa - Chickpea Cicer arietinum cropping system in chhattisgarh plains
