Abstract
The paper considers different levels of biologization in agriculture as provided by crop rotation with different fallow types with placement of fertilizers at a level of 40 t/ha, basic soil treatment, leaving straw in the field for all crops of five-field crop rotation and application of mineral fertilizers. High barley yields were obtained through the years of the study. Correlation analysis revealed a direct dependence between total biogenesity of soil and grain yield, which is fully actualized depending on meteorological conditions, varietydependent peculiarities of Povolzhsky 85 barley and agricultural processes applied aimed at increasing biologization of agriculture and protecting soil fertility.
Highlights
Spring barley is one of the most important basic crops, as it is involved in food production, fodder production and brewery; the crop covers relatively large acreage in the grain balance of Russia and the world alike
Organic fertilizers are mostly placed under forecrop, as barley is more efficient in using the aftermath of the organic fertilizers introduced, when the nutrients are already in a plant-accessible form
The correlation analysis revealed a direct dependence between the studied characteristics – total biogenesity of the soil created by the total of microorganism in the soil – and grain yield, which is fully actualized depending on meteorological conditions, variety-dependent peculiarities of Povolzhsky 85 barley and agricultural processes applied aimed at increasing biologization of agriculture and protecting soil fertility
Summary
Spring barley is one of the most important basic crops, as it is involved in food production, fodder production and brewery; the crop covers relatively large acreage in the grain balance of Russia and the world alike. The rotation facilitates replenishment and better use of soil nutrients and fertilizers, improves and supports advantageous physical and biological soil conditions, prevents infestation of crops with weeds, diseases and pests, reduces pesticide load onto soil and plants, facilitates production of high-quality agricultural products [1]. Soil treatment is the most important agricultural practice, facilitating creation of advantageous phytosanitary conditions in the soil and determining high yields [2]. Grain yield is a generalizing indicator that allows assessing effectiveness of various elements involved in biologization of agricultural system It allows revealing links between yields of spring barley and biological indicators of soil fertility, that is, correlation coefficients between yield and general biogenesity of the soil
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