M MADHU, M VENKATA RAMANA. Effect of preceding crops on growth and yield of zero-till rabi castor (Ricinus communis L.) under different nitrogen levels: EFFECT OF PRECEDING CROPS ON GROWTH AND YIELD OF ZERO-TILL RABI CASTOR. J. Oilseeds. Res. 2017;34(2). doi:10.56739/jor.v34i2.137705