Matusevich G. Ecotoxicological ground of modern pesticides application on spring cereals in the conditions of different technologies in the North Ukrainian Forest-Step zone

The dissertation is devoted to the investigation of ecotoxicological properties of pesticides applied on spring cereals in the conditions of different technologies and to the risk assessment of pesticides application on different ecosystems objects. Complex ecotoxicological assessment of the potential and real application pesticides risk had been conducted. Constants of the pesticides speed destruction (k) and half-life period (T50) were calculated depending on the growth technologies of the spring cereals. It gives possibility estimate of the grain pesticides pollution. It had been installed that using of the intensive technologies promotes the increasing of the pesticides destruction speed. Influence of pesticides using on the ferment activity had been investigated. Risk level of pesticides is established according to the integral classification and pesticides safety using is substantiated at cereals growing in the conditions of the Ukrainian North Forest-Step Zone.