SINGHSHAKTAWATI, R. and BANSAL, K. (2013) “Effect of different organic manures and nitrogen levels on growth and yield of sunflower (Helianthus annuus)”, The Indian Journal of Agricultural Sciences, 69(1). Available at: https://epubs.icar.org.in/index.php/IJAgS/article/view/26181 (Accessed: 28 October 2025).