Basavaraja, P. K., S. Sridhara, A. R. Sushma, and G. R. Hareesh. “Effect of Integrated Nutrient Management on Onion Yield and Soil Properties under Chromic Haplusterts of Karnataka”. Journal of Horticultural Sciences, Vol. 2, no. 1, June 2007, pp. 34-37, https://jhs.iihr.res.in/index.php/jhs/article/view/634.