Kaur R, Kaur N, Gill R, Sandhu SK, Singh A. Optimization of nutrient requirement of Indian mustard (Brassica juncea L.) cultivars under poplar (Populus deltoides) based agroforestry system. Indian J. Agroforest. [Internet]. 2021 Dec. 31 [cited 2026 Jun. 23];23(2). Available from: https://epubs.icar.org.in/index.php/IJA/article/view/119683