INFLUENCE OF EARLY-SPRING FERTILIZING WITH SULPHUR-CONTAINING MINERAL FERTILIZERS ON THE QUALITY OF WINTER WHEAT GRAIN FLOUR

Abstract

Wheat flour obtained from winter soft wheat grain of the Saratovskaya 17 variety, grown under the conditions of leached, medium-power, low-humus, medium loamy black soil of the Middle Volga region of the Russian Federation (Ulyanovsk Region) in 2017-2018 was studied in the work. According to leading experts in the field of plant nutrition, the presence of sufficient sulphur in cultivated plants is the main factor in obtaining high-quality protein compounds. The effect of early spring fertilizing with ammonium nitrate with the addition of ammonium sulfate in the amount of 5 and 10% was studied. The crude gluten content in 2018 grain flour was lower by 4.5-7.0% compared with the 2017 test variants; therefore, the water-absorbing capacity (WAC) in the 2018 test variants was two to three units lower. The use of sulfur-containing fertilizers in the early spring feeding of winter wheat affected the quality of finished products. When applying sulphur-containing fertilizers in the amount of 10%, high porosity, specific volume of bread, and form stability were obtained, which showed the dependence of these indicators on gluten, viscosity, and amylase indices.

Keywords

• mixolab
• test profile
• profiler index
• gluten index
• sulphur fertilizers