Disturbance of ecology in zone of techogenic load of modern swine-growing complex

Abstract

The purpose. To make local assessment of vulnerability of sod-podzolic soil village settlement terrains in the area of modern swine-growing complex, and to justify methods of rehabilitation of terrain with disturbed ecology. Methods. Agrochemical, physical, spectrometric, biometrical (determination of mean values, their lapses, etc.). Results. Agrochemical research is carried out of coverless dung and soils in the terrain which are in catchment area swine-growing complex. Arable soils in catchment area of swine-growing complex are characterized by close to neutral response of environment, heightened content of mobile potassium, and also very high content of flexible joints of phosphorus. The content of flexible joints of phosphorus on gross stores varies within the limits of 33–50% and exceeds analogous index for sod-podzolic soils of Zhytomyr region — up to 15% in loamy and 4–12% — in sandy-loam soils. Variability of this index is great: for sandy loam soils — 25–27%, for sandy-loam soils — approach to 50%. In sod-podzolic soils after long manuring, as a rule, amount of organophosphates augmented in 3–4 times in comparison with soil without fertilization. Dynamics of the content of biogenic elements on years testifies to steady lowering the content of potassium in different fractions of coverless dung and stable increase in them of phosphorus. It is the cause of existing unbalance of nutrients in soils within the limits of terrain of economic activities of swine-growing complex where they use coverless pig manure as fertilizer. Conclusions. Information basis is formed of ecological-agrochemical indexes of sod-podzolic soil in zone of technogenic load of modern swine-growing complex. On the basis of the gained data scientifically justified methods will be developed, which will lower technogenic load on environment of modern swine-growing complex in conditions of scouring regimen of sod-podzolic soil of zone of Polissia.