Rana MC, Angiras NN. Influence of phosphorus level and weed-control method on phosphorus uptake by gobhi sarson (Brassica napus subsp oleifera var annua) and associated weeds. Indian J Agri Sci. 2012;65(4). Accessed September 19, 2024. https://epubs.icar.org.in/index.php/IJAgS/article/view/18219