Zubkova Tatyana Aleksandrovna
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• Lomonosov Moscow State University
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Articles count: 5
The average crop productivity of agricultural cultivars by regions, as it was expected, is closely connected with the soil quality, soil cover of a region. The crop productivity of cereals, winter wheat, sugar beet, corn for grain is higher on the soils of the better quality than on the soils of the worse quality. Under this condition the produce of plant growing is more profitable in Adyghea in whole, despite of the separate regions get low yields, what deeply decreases the profitability of products production.
The influence of soil cover on profitability of agricultural products in the republic of Adyghea was shown in the article. The dependence of economic indexes on quality of soil cover: price cost of grain cultures, grown on soils of the better quality- lower is revealed on the base of the conducted analysis.
Acidic properties of the mineral matrix of meadow chernozem and meadow-boggy soils of Krasnodar region are characterized by a total adsorption capacity of ammonia in the range of 32-61 µmol / g. The lowest acidity of the matrix was observed under conditions of permanent rice cultivation for 80 years (32- 33 µmol NH3/g). The mineral matrix of rice soils depends on the meliorative state and the granulometric composition of these soils. At low fields of meadowboggy soils, heavier in granulometric composition, the total acidity of the mineral matrix is 51- 53 µmol NH3/g on high checks of lighter meadow chernozem soils – 34-45 µmol NH3/g. In the upper soil, with a less acidic matrix, the Fe3+ content increases and the amount of Fe2+ decreases. The reverse pattern is found in the lower soil with more pronounced acidic properties of the matrix. A proportional relationship between the humus content and the acidic properties of the mineral matrix is found. The highest yield of rice is formed on meadow chernozem soils with a less acidic mineral matrix