Matviychuk B. Agroecological aspects of husbandry biologication on the light-grey forest soil

The thesis considers the results into the investigation and agroecological asses of the short-term crop rotation with the alternative fertilizing systems. Alt has been established that the major indices of light-grey forest soil yielding capacity, land capability of crop rotation, the quality of products and their ecological resistance depend upon the husbandry biologization level. Alt has also been found and the dependence of dew worms existence conditions upon the chemical fertilizers application with minerals nutrient combination. The author has proved that only mineral feeding reduces the cellulose destruction and CO2 threw and process. According to the results of the investigations has been established that grain crop rotation practice makes it possible to get the highest productivity and of 2,1 to 7,7 cvt/ha to the grain and flax crop rotation with the minimal rate of mineral fertilizers application. Alt has been established that with the increase of husbandry biologization the NPK active ingredient recoupment in mineral fertilizers increases including to the biological husbandry. Alt can be aplained by the absence of mineral fertilizers. Comparing crop rotation to the yield growth rocoupment, the advantage of grain crop rotation is absewed. Though, at the process of Chemicalization its content was more than 6 kg of the basic product/kg. The crop rotation biomass forms depending upon the rate of intensification elements nourishment. It has been identified that the variant of intensive biologization is effectual for the light-grey forest soil yielding capacity expanded reduction. The chemilization variant is enough for the yielding capacity stabilization.