Litvinov D. Influence of intensification level of technologies growing of the field crops in a crop rotation on fertility of dark-grey podzolized -soil and pea yield.

Subject of is the process of change of effective and potential fertility of dark-grey podzolized soil at different fertilizer systems and plants protection in grain row-crop rotation of the north Forest-Steppe. The scientific ground of the optimum degree of saturation of grain row-crop rotation with agrochemicals, what will provide the restoring effective and potential fertility of dark-grey podzolized soil at minimum agro ecosystem agrochemical remains pollution in the conditions of the north Forest-Steppe. The research methods are generally accepted for the agriculture branch. The regularities of changes of basic indexes of dark-grey podzolized soil depending on the degree of intensity of the agrochemical loading of grain row-crop rotation of the north Forest-Steppe are established. The recommendations concerning complex application of means of chemicalization for the improvement of progressive technologies of crop growing at the farms of the north Forest-Steppe are developed. The obtained research results are inculcated in 2001-2002 at VSC "Rizhky" of the Tarashcha district of the Kyiv region over an area 65 ha. The increase in vied from the chemicalization block makes 16 hkg/ha grain of pea. The sphere of application is agriculture.