K. K. BARMAN, A. N. GANESHAMURTHY, and P. N. TAKKAR, “Zinc requirement of soybean (Glycine max) - wheat (Triticum aestivum) cropping sequence in some swell-shrink soils”, Indian J Agri Sci, vol. 68, no. 12, Feb. 2013, Accessed: Oct. 28, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/27792