M. K. SINGH, S. K. PAL, R. THAKUR, and U. N. VERMA, “Integrated nutrient energy management for sustainability in maize (Zea mays) - wheat (Triticum aestivum) cropping system”, 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/27834