Mandal C, Bhattacharyya T, Venugopalan MV, Tiwary P, Pal DK. Agro-Ecological Sub-region: A wheel of technology transfer for crop planning. Ind. Farming [Internet]. 2015 Sep. 22 [cited 2026 Aug. 7];64(2). Available from: https://epubs.icar.org.in/index.php/IndFarm/article/view/49896