THE USE OF CHEMICALLY MODIFIED PLANT MATERIALS AS SOIL BUILDERS

Abstract

The results of studies on the effects of composite polymer preparations obtained by carboxymethylation of various types of plant materials (sawdust common pine (Pinus silvestris) (NaKMD preparation), oat flower films (Avena sativa L.) (NaKMO preparation) and sunflower husk (Helianthus annuus L.) (NaKMP preparation)), on the water resistance of soil aggregates in laboratory and field conditions of the forest-steppe of the Altai Territory are presented. The object of research is ordinary and leached medium loamy black earth. The water resistance index of soil aggregates was determined by the method of P.I. Andrianova. It was found that both in laboratory and in field conditions, soil aggregates with the use of drugs are washed out by water much more slowly than in versions without the use of drugs. The NaCMP preparation, which contains the largest amount of carboxymethylated lignin (17.1%), had the greatest influence on the resistance of soil aggregates to water. In general, the water resistance of the soil when using the studied drugs, depending on the application dose, increased 1.2–3.5 times compared to the control. The positive effect of preparations from carboxymethylated plant materials varies in the following order: NaKMP> NaKMO> NaKMD.