P RAMESH, I Y L N MURTHY, and CH V HARIPRIYA, “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”, J. Oilseeds. Res., vol. 30, no. 1, Jul. 2013, doi: 10.56739/jor.v30i1.142750.