VIRENDER SARDANA; S.K. SHARMA; A.S. RANDHAWA. Performance of wheat (Triticum aestivum) varieties under different sowing dates and nitrogen levels in the sub montane region of Punjab. Indian Journal of Agronomy, [S. l.], v. 47, n. 3, p. 47_3 , 2001. DOI: 10.59797/ija.v47i3.3175. Disponível em: https://pub.isa-india.in/index.php/ija/article/view/3175. Acesso em: 25 jun. 2026.