CHOUDHARY, R. L., and U. K. BEHERA. “Optimization of Conservation Agriculture and N Nutrition in maize–wheat Cropping System: Assessment on Productivity, Energy Indicator, Nutrient Apparent Balance and Economics”. Journal of Soil and Water Conservation, vol. 20, no. 1, Aug. 2021, https://epubs.icar.org.in/index.php/JSWC/article/view/114413.