Effect of mineral nutrition on grain yield in soybean lines with reduced content of KTI

Abstract

Two soybean lines L 94-128 (maturity group I) and L 91-4042 (maturity group II) with reduced content of KTI, selected at Maize Research Institute "Zemun Polje" were investigated in this work. The aim of investigation was to establish the most effective mineral nutrition system for increasing grain yield in studied soybean lines. Combination of three fertilizers was tested: start fertilizer "Power 5" incorporated in soil during the sowing, and two foliar fertilizers "Humikal universal" and "Ferticare I" applied during the vegetation period of soybean. Results has shown that soybean line L 91-4042 produce higher yield than line L 94- 128. Both foliar fertilizers effected the increasing of grain yield in studied lines. However, "Ferticare I" is more effective than "Humikal universal" in soybean with reduced content of KTI. .

Za istraživanje uzete su dve linije soje, L 94-128 (I grupa zrenja) i L 91-4042 (II grupa zrenja) smanjenog sadržaja Kunitz tripsin inhibitora (KTI), selekcionisane u Institutu za kukuruz "Zemun Polje". Za cilj istraživanja postavljeno je da se iznađe pravilan sistem mineralne ishrane, koji najpovoljnije utiče na povećanje prinosa zrna ovih linija soje. U radu je proučavan uticaj startnog mineralnog hraniva (Power 5) i dva folijarna hraniva (Humikal univerzal i Ferticare I). Utvrđeno je da je prinos zrna linije L 91-4042 veći nego linije L 94-128. Folijarna prihrana pokazala se kao uspešan metod jer je značajno povećala prinos zrna soje u odnosu na kontrolu. Viši prinosi postignuti su primenom Ferticare I nego primenom Humikal univerzal-a. .