Stability of Soils to Water Erosion when Treated with Polyacetonitrilebased Polymer

The anti-erosion effect of an anionic polymer based on polyacetonitrile, "VPRG reagent (dry hepane)", has been studied when its solution was applied to the surface of agro-black earth, sand and clay in laboratory conditions. It has been found that the use of VPRG has a clearly positive effect only on the anti-erosion stability of agro-black earth; a weak positive effect was observed on clay, and an increase in the amount of washed-off material was noted on sand relative to the standard. It has been confirmed that an increase in the concentration of VPRG leads to an increase in the anti-erosion stability of agro-black earth, but reduces it for clay and sand relative to the standard. It has been concluded that the optimal dose of VPRG application corresponds to 106 kg/ha when dissolved in 10 m 3 of water for agro-black earth and clay.