Rani, R., Singh, S.P. and Kingra, P.K. (2017) “Microclimate and heat unit requirement of maize (Zea mays L.) under different thermal environments, mulching and irrigation levels”, Annals of Agricultural Research, 38(2). Available at: https://epubs.icar.org.in/index.php/AAR/article/view/75043 (Accessed: 7 June 2026).