Singh, Mahendra, S.K. Arora, and Jaiprakash . “Effect of Organic Manures on the Uptake of Nirogen and Phosphorus by Barley”. Journal of Soil and Water Conservation 16, no. 1 & 2 (August 8, 2022). Accessed August 13, 2026. https://epubs.icar.org.in/index.php/JSWC/article/view/126753.