Pohare, Vishakha B., et al. “Productivity and Nutrient Uptake of Soybean (Glycine Max) - Onion (for Seed) (Allium Cepa) Cropping Systems As Influenced by Integrated Nutrient Management Practices”. International Journal of Economic Plants, vol. 5, no. May, 2, May 2018, pp. 065-70, https://ojs.pphouse.org/index.php/IJEP/article/view/4544.