GAJENDRA GIRT. 2001. “ Direct and Residual Effect of Nitrogen and Phosphorus Fertilization on Groundnut (Arachis Hypogaea) - Wheat (Triticum Aestivum) Cropping System”. Indian Journal of Agronomy 38 (1): 38_1 . https://doi.org/10.59797/ija.v38i1.3872.