BABU S, RANA DS, YADAV GS, ANSARI MA. Residual effect of sunflower (Helianthus annuus) stover and P management and direct effect of N and P on productivity, nutrient uptake and economics of spring sunflower. Indian J Agri Sci [Internet]. 2013 Mar. 18 [cited 2025 Oct. 26];83(3). Available from: https://epubs.icar.org.in/index.php/IJAgS/article/view/28340