B.N. REDDY et al. 2001. Effect of sowing time on the performance of sunflower (Helianthus annuus) cultivars in rice (Oryza sativa) fallow vertisols of northern Karnataka. Indian Journal of Agronomy. 49, 4 (Oct. 2001), 275–277. DOI:https://doi.org/10.59797/ija.v49i4.5218.