Sakhnenko D. Agri-Environmental Justification for the Protection of Winter Wheat from Pests With No-till Technology in the Forest-Steppe of Ukraine

In the dissertation work is substantiated improvement of technologies of protection winter wheat from the complex of harmful insect species in No-till technology using the monitoring of development and reproduction, as well as the distribution of phytophagous complex when growing winter wheat, which will increase production in the forest-steppe of Ukraine. in the field crop rotation (oil radish + mustard, 50 % to 50 %, 8 kg to 8 kg) and before sowing or sowing 120 l/ha, the optimum level in farming systems and net profit of more than 8 thousand UAH. from one hectare However, with the additional use of insecticides for seed dressing and a single marginal spraying of seedlings, net profit rises to 9600 UAH with ha. The level of profitability at the same time is more than 185 %, which indicates the importance of a comprehensive system of measures to control groundwater and internal pest pests, as well as to obtain a wheat grain yield of more than 7.5 tons/ha. With No-till technology, an entomocomplex of intrastempe insect pests is formed in terms of sustainability of zoned progenitor varieties, planting dates and fertilizer systems, correlates with a determination coefficient of 72–86 % and is consistent with the studied variants.