Singh RD, Sikka AK, Shivani S, Rajan K. Effect of irrigation and nitrogen on yield, water use eficiency and nutrient balance in rice (Oryza sativa)- based cropping system. Indian J Agri Sci [Internet]. 2008 Jan. 5 [cited 2025 Oct. 27];78(1). Available from: https://epubs.icar.org.in/index.php/IJAgS/article/view/9760