NARENDER, MALIK RS, NARWAL RP. Critical limit of copper in soil and plant for predicting response of oat (Avena sativa) in soils of Haryana. Indian J Agri Sci [Internet]. 2014 Mar. 4 [cited 2025 Oct. 24];84(3):382–4. Available from: https://epubs.icar.org.in/index.php/IJAgS/article/view/38588