TRANSFORMATION OF SOILS AND AGROCHEMICAL PARAMETERS OF FERTILITY IN CONDITIONS OF INTENSIVE LAND USE(ON THE EXAMPLE OF GARDEN NON-COMMERCIAL PARTNERSHIPS)
The results of the primary soil-agrochemical monitoring of a large (150 hectare) garden non-commercial partnership (GNP), founded 25 years ago. Mapping the soil cover at a scale of 1:5000 showed that during the time that has passed since the formation of the GNP, the properties of the dominant initial soils of hydromorphic series have been transformed into anthropogenically transformed and agrozems. The most contrasting changes occurred in soils on sites with intensive development, where mainly organic, as well as mineral fertilizers, sider- ates are used and an agrogenic (ridge) microrelief is formed, the anthropogenic microstructure of the soil cover. Agrochemical properties of soils are significantly different from background texture-differentiated soils under forest. More than 60% of the territory's soils have pHH2O higher than 6.0. Medium humus soils predominate (3- 5% humus). In the 0-10 cm layer, they are about 85%, and in the 10-20 cm layer about 55%. More than half of the soils (~54%), high and medium are provided with mobile phosphorus, exchangeable potassium is provided only about 5%. The obtained data reflect the current trends in the transformation of the soil cover with intensive development, typical for land use in GNP. These changes characterize the apparent increase in the productivity of soil in land and the feasibility of accounting for these changes in the basic documents responsible for the register of country's soil resources at the local level.