DOI 10.36461/NP.2024.69.1.017
UDC 631.147+631.43
THE INFLUENCE OF THE ELEMENTS OF BIOLOGICAL AGRICULTURE ON THE AGROPHYSICAL PROPERTIES OF THE SOIL AND THE PRODUCTIVITY OF CROPS
K.Yu. Kiselyova, graduate student;
E.N. Kuzin, Doctor of Agricultural Sciences, Professor;
A.N. Arefyev, Doctor of Agricultural Sciences, Associate Professor;
E.E. Kuzina, Candidate of Agricultural Sciences, Associate Professor
Penza State Agrarian University, Penza, Russia, tel. 8(412) 62-85-65, e-mail:
The conducted research has established that manure, green manure and their combined use with a stubble biodecomposer had a certain effect on the agrophysical properties of meadow-chernozem soil and crop productivity. The most significant influence on the change in the structural state, density, porosity of the arable layer of meadow-chernozem soil and crop productivity was exerted by the use of legumes in combination with a stubble biodecomposer during independent and intermediate sideration in the cereal-fallow-row crop rotation. In that condition the content of agronomically valuable water-bearing aggregates in the arable layer of meadow-chernozem soil significantly exceeded the control in the agrocenosis of spring wheat by 9.4-10.0%, in the agrocenosis of peas by 12.4-12.6%, in the agrocenosis of winter wheat by 13.2-13.3%. The value of the equilibrium density in the arable layer was on average lower than the control variant by 0.11-0.12 g/cm3 over the three years of research, the value of the total porosity exceeded the control by 4.1-4.4%. The use of cereal-fallow-row crop rotation with independent and intermediate sideration of legumes in combination with a stubble biodecomposer increased the total productivity of spring wheat, peas and winter wheat by 3.24-3.35 t/ha of grain units, or by 29.3-30.3%.
Keywords: meadow-chernozem soil, manure, stubble biodecomposer, green manure, structure, density, porosity, productivity.
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