Panayotova G, Kostadinova S, Velinov I. ENERGY EFFICIENCY OF NITROGEN FERTILIZATION IN DURUM WHEAT AND SORGHUM GRAINS. PNS [Internet]. 2020Nov.16 [cited 2026Nov.5];1:78-84. Available from: https://ojs.cbuic.cz/index.php/pns/article/view/126