The results of chemical reclamation of the soil component of natural and seeded meadows in the Non-Black Soil Zone of the Russian Federation

Abstract

The reclamation role of the preparation Kovelos in relation to elements of the heavy metal group – copper and zinc - has been proven: a decrease in their gross concentration when applying a silicon-containing nanopreparation at a dose of 120 kg/ha is statistically significant. Thus, soil grassing in combination with the introduction of a silicon–containing preparation is an effective method of land reclamation in aerotechnogenic pollution areas. It was found that during the four-year period of meliorant application, OCC values in soils grassed with natural and seeded vegetation increased for 3 and 4 years of observation. The differences in the OCC fixation differ unreliably with the variants without the addition of nanosilicon, nevertheless, OCC reserves increase significantly. The range of OCC accumulation as a result of long-term use of chemical meliorant is as follows: caper euphorbia + oats > common timothy > cow clover > koeleria-red fescue > two-source > cow parsnip-foxtail. The use of synthetic amorphous silicon dioxide leads to cheaper reclamation methods, reduced labor and energy costs, the use of an affordable and cheap drug, and the action complexity.