T. S. Tomar, S. Kumar, and S. Tomar, “Effects of plant density, nitrogen and phosphorus on black gram (Vigna mungo L. hepper)”, AAR, vol. 34, no. 4, Feb. 2016, Accessed: Sep. 19, 2024. [Online]. Available: https://epubs.icar.org.in/index.php/AAR/article/view/37896