Oliynik O. Agrochemical estimation the vermiculturing products usage on taupe soils in conditions of the Western Forest - Steppe zone of Ukraine

The object-illustrates the process concerning the dynamics of change of a humus balance in dark-gray taupe soils along with the vermiculturing products usage. The purpose- to install and to justify the agrochemical efficiency of vermiculturing products usage; to estimate its influence on definite metrics of a state of a humus in dark-gray taupe soils; to investigate the phytosanitary state of crops and the efficiency of the crop-rotation in the Western-Forest-Steppe zone of Ukraine. Methods included are: field, lizometric, laboratory, statistikal as well as the method of mathematical simulation. The novelty: calculated is the prognosis of contents of organic matter changes in dark-gray taupe soils in accordance with the norms and duration of organic fetilization usage; calculated are the dozes and terms of vermiculturing products usage for winter crops, sugarbeet, barley, green corn to provide sufficient improvement of phytosanitary state of crops before vermiculturing products usage; simulated is theutmost level of vermicompost saturation for support of sufficient balance of a humus. Outcome of research is being utilized in agriculture and in learning process as well. Implementation branch-plant growing, agriculture.