S. C. KOTUR, P. R. RAMESH, K. ANJANEYULU, and V. RAMACHANDRAN, “Direct and residual effect of nitrogen in high-yielding/hybrid chilli (Capsicum annuum)–radish (Raphanus sativus) system”, Indian J Agri Sci, vol. 80, no. 7, Aug. 2010, doi: 10.56093/ijas.v80i7.282.