Economic efficiency of the use of microelement chelates in cultivation of spring wheat on quasigleyic blac soil

Abstract

Abstract The purpose of the paper is to study the effect of foliar feeding with Zn and Cu chelates in the tillering period on the size and quality of the grain yield of spring common wheat during the cultivation on quasi-gleyic medium-thick, highly humus-rich, heavy loamy black soil in Omsk region. The field experiment scheme included the following options: without trace elements (control group); Zn10; Zn20; Zn30; Cu10; Cu20; Cu30. The use of Zn and Cu chelates for foliar feeding of plants during the tillering period had a positive effect on the yield, quality, germination energy, seed germination, the mass of 1000 grains and the unit of wheat grain. The increase in grain yield was 0.10-0.23 t / ha (4.5-10.5%) in average. In this experiment, the best dose of Zn and Cu chelates was 20 g / ha. The highest protein content was in the options with seed treatment with Zn20 - 14.35% and Cu30 - 13.95%, the yield of protein increased from 295 in the control group to 322-344 kg / ha when chelates were applied. The energy of seed germination significantly increased from 93.3 in the control group to 94.8-98.0%, with foliar feeding. When Zn chelate was used, the largest mass of 1000 grains (32.33 g) and grain nature (709 g / l) were formed in the Zn20 option, and when Cu chelate was used, the Cu10 option (32.45 g) was characterized by the highest value of the 1000-grain mass, which amounted to 717 g / l. D