SHIVRAN, D R; AHLA WAT, I P S. Crop productivity, nutrient uptake and soil fertility as influenced by cropping system and fertilizers in pigeonpea (Cajanus cajan)-wheat (Triticum aestivum) cropping system. The Indian Journal of Agricultural Sciences, Delhi, India, v. 70, n. 12, 2013. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/28736. Acesso em: 27 oct. 2025.