The role of diatomite in the cultivation of legume grasses in modified black soil models

Abstract

In the Article, the data of vegetation model experiments conducted in field conditions are analyzed. As the baseline criterion of leached black soil contamination, the criterion of ecological and toxicological content of mobile forms of high-density metals in the soil corresponding to the bottom boundary of environmental disaster areas of soil contamination was used. The assessment of the effect of diatomite in contaminated agricultural soil in plantings of yellow sweet clover and purple medic test plants was conducted according to the quantity of metal accumulated by the crop. The use of diatomite in models of soils contaminated by high-density metals contributed to the decrease of accumulation in plants of sweet clover and medic of lead by 1.1-1.3 order of magnitude, of zinc 2.5-2.8 fold, and of cadmium 1.8-2.5 fold.