Kumar S, Tomar TS, Tomar S, Singh S. Effect of phosphorus and bio-fertilizers in pigeonpea and its residual effect on the productivity of wheat under pigeonpea-wheat cropping system. AAR. 2016;36(1):38-43. Accessed June 7, 2026. https://epubs.icar.org.in/index.php/AAR/article/view/54249