Abstract
In this article, the soils of experimental beds of arable land with potatoes of the Tittyakh plot are studied. A general microbiological analysis of the selected soils–determination of the main ecological and trophic groups of microorganisms, as well as identification of the presence of phytopathogenic fungi contributing to potato spoilage - was carried out. It has been established that the used pesticides (herbicides) reduce the total number of microorganisms in the arable land with potatoes by 3 times and have different effectiveness against pathogenic fungi for potatoes. It was revealed that the soil at the Tittyakh site is infected with the most dangerous fungi for potatoes from the genera Fusarium, Trichoderma, Alternaria.
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