P RAMESH, et al. “Long-Term Effect of Nutrients on Castor (Ricinus Communis L.) Productivity, Soil Fertility, Nutrient Uptake and Nutrient-Use Efficiency in Rainfed Alfisols: LONG-TERM EFFECT OF NUTRIENTS ON CASTOR IN RAINFED ALFISOLS”. Journal of Oilseeds Research, vol. 30, no. 1, July 2013, https://doi.org/10.56739/jor.v30i1.142750.