SINGH, H.; SINGH, V.; SINGH, J. Effect of Organic and Inorganic Nutrient Sources on Productivity, Profitability and Soil Fertility in Onion (Allium Cepa) under Entisol. Indian J Agri Sci 2019, 89 (5), 851–855. https://doi.org/10.56093/ijas.v89i5.89669.