SHAKTAWAT', R.P. and BANSAL, K. (2013) “Nutrient content, uptake and yield of sunflower (Helianthus annuus) as affected by organic manures and nitrogen levels*”, The Indian Journal of Agricultural Sciences, 69(3). Available at: https://epubs.icar.org.in/index.php/IJAgS/article/view/26566 (Accessed: 28 October 2025).