During 2020, on the basis of stationary and temporary field experiments, which are located in the Skvуra Research Station of Organic Production of NAAS, Nosiv SDS and the Institute of Vegetable and Melon NAAS were studied quantitative composition of the soil micromycetes under different agricultural crops: winter wheat, spring barley and onion. The vegetation period in the Kyiv region was characterized by – sufficiently moist (HTC 1,7), and in Chernihiv and Kharkiv regions drought prevailed (HTC 0,6). Adverse weather conditions such as drought or waterlogging are crucial factors in changing the number of mycobiomes in the studied soils.
Stationary field experiments in the selection Nosivka during the ontogenesis winter wheat characterized the greatest number pedatrophic and less number of amylolytic, cellulosolytic ecological-trophic groups. The stationary experiments field researches were also conducted in Skvyra Research Station of Organic Production. Where the rhizosphere soil under spring barley crops is characterized by a larger number of micromycetes, as well as amylolytic and cellulolytic ecological-trophic groups. Was determined the number of soil micromycetes the main ecological and trophic groups. The rhizosphere soil on the stationary field of the Institute of Vegetable and Melon NAAS during the ontogenesis of different varieties of onions characterized by high number cellulosolytic group of micromycetes, which despite the decrease in the hydrothermal coefficient increased by the end of the growing season of the culture.
Therefore, the interaction between plants and micromycetes is a dynamic process in which the hydrothermal coefficient during the growing season, soil type, and the root system of agricultural plants, this influences the formation of soil mycobiome.
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