EFFECT OF NITROGEN FERTILIZERS ON AMINO ACID COMPOSITION OF SPRING WHEAT GRAIN

Abstract

The paper presents the results of applying nitrogen fertilizers for spring wheat of the Novosibirsk 31 variety. The use of the fertilizers produced additional 1,62 t/ha of grain relative to the control variant. The maximum yield was 5,4 t/ha. The increased doses of the mineral fertilizers resulted in the increased ammonium ion in the grain, the rate reached 0,76 %. The excess of ammonium ion in spring wheat is neutralized by glutamine in the composition; the glutamine content reached 5,4 %. At the same time, the synthesis of arginine was reduced from 5,1 to 1,0 %.