Changing of the water medium state under introduction of dung large dozes into sod-podzol soils
Introduction of high dozes of dung into the soil (more than 100 t/ha) results in water contamination by nitrates, phosphates, a water-soluble organic matter. Migration of biophilia elements and toxicants grows under light granulometric composition of soils and rocks, close level of ground water, under development of erosion. It is proved that when determining permissible dung dozes there should be accounting of the existing water contamination and exhaustion limit of toxicants in the local region.