Influence of abiotic environmental factors on agricultural technology of barley cultivation in the steppe zone of the Southern Urals

Abstract

The article presents the results of a study of the influence of abiotic factors on the yield of barley grain in arid conditions of the Orenburg region. The aim of the study is to study agrometeorological conditions, soil moisture, nutrient background, previous crops and their impact on the yield of barley grain in six-field crop rotations. The studies were carried out from 2015 to 2020 according to six options for growing barley on a plot of an experimental stationary field according to crop rotations with black and green manure fallow, laid down in 1988. In the experiments, the following research methods are used: field, thermostat-weight method and analysis of variance. The moisture level in the soil layers in all variants is from 112.2 to 173.2 mm. For the rotation of the six-field crop rotation with black fallow in the second variant of the experiment, there is an increase in the yield of barley grain in the aftereffect of peas against the background with applied mineral fertilizers and contains 1.40 t, without their use - 1.16 t/ha. For the rest of the experiment, a change in the yield of barley grain is noted and the range is from 1.07 to 1.38 t/ha. The increase in grain from mineral fertilizers by 0.17-0.25 t/ha can be seen for all variants of the study. The dependence of the yield of barley grain in grain-fallow crop rotation with peas on the content of soil moisture and precipitation on a fertilized background of nutrition was revealed. The results of the study are of great importance in the development of agriculture and the production of fodder grain in the steppe zone of the Southern Urals.