SHIVRAN, P L; AHLAWAT, I P S; SHIVRAN, D R. Productivity, nutrient uptake and soil fertility as influenced by phosphorus and sulphur in pigeonpea (Cajanus cajan )-wheat (Triticum aestivum) cropping system *. The Indian Journal of Agricultural Sciences, Delhi, India, v. 71, n. 12, 2014. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/40513. Acesso em: 24 oct. 2025.