HUSSAIN, ASHAQ, et al. “Yield, Nutrient Uptake and Soil Nutrient Balance in Wheat (Triticum Aestivum) As Affected by Nutrient Omissions in Cotton (Gossypium Spp)-Wheat Cropping System”. The Indian Journal of Agricultural Sciences, vol. 86, no. 3, Mar. 2016, pp. 355–61, https://doi.org/10.56093/ijas.v86i3.57014.