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Changes in antideflation resistance of chernozem typical under different tillage and fertilizers

, National University of Life and Enviromental Sciences of Ukraine

Abstract: The scale wind erosion is increasing in Ukraine in connection with the arid climate and intensive agricultural land use. Deflation causes significant damage not only to the soil cover, but also to the environment. Research has shown that the resistance of soils to deflation depends on their structural state. The aim of our work was to establish the influence of different tillage systems and fertilizers on agrophysical parameters of the soil. According to the method of dry sieving according to Savvinov, the content of particles larger than 1 mm and the number of agronomically valuable particles per 1% of humus according by V. V. Medvedev were determined in the soil. The research was conducted on a stationary experiment of the Department of Soil Science and Soil Conservation named prof. M. K. Shikula in Separated subdivision of NULeS of Ukraine “Oleksandr Muzychenko Velykosnytinske Educational and Research Farm” of Fastiv district of Kyiv region. The soil of the experimental site is chernozem typical. It was found that in the variant with the application of straw, green manure and mineral fertilizers for reduced tillage, the content of particles larger than 1 mm was the highest and amounted to 75.1-77.5 %. Conservation tillage systems provided a deflation-resistant soil surface, as the content of particles over 1 mm was greater than 60%. Reduced tillage together with the fertilizer variant "Straw 1.2 t / ha + N12 + N78P68K68" creates the best conditions for aggregation in a layer of 0-30 cm of chernozem typical. On non-plowing tillage, more favorable aggregation conditions were on the variant "Straw 1.2 t / ha + green manure N12 + N78P68K68". On variant with plowing, the indicators of the structural state of chernozem typical deteriorated.
Keywords: land use / structural / deflation / soil / tillage together with the fertilizer / Straw / chernozem / fertilizers

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