Establishing the potential advantage of hydrolysed polyacrylamide in soil erosion control

This paper shows the possibility of changing the number and strength of aggregates under the influence of water and polyelectrolyte solutions, since polyacrylamide (PAА) and its hydrolyzed forms. The use of PAА solutions hydrolyzed with a KOH solution at 70 ° C for stabilization of soil aggregates increases the fraction of 0.25-10 mm. According to the soil after treatment with a solution of this polyelectrolyte, it corresponds to an excellent structural condition and the structural coefficient of the soil increases from 0.54 to 4.34. In this case, the sodium forms of hydrolyzed PAА have significantly low structural coefficients, since these structurants have little effect on silt particles and, in terms of creating a coagulation structure on the soil system, are inferior to potassium PAА. It was also found that the increase in the physical characteristics of the soil due to the treatment with polymer solutions contributes to a more productive use of soil moisture reserves by agricultural crops. The introduction of hydrolyzed PAA into the soil significantly increases the retention of trace elements, since nitrogen and phosphorus. Due to the availability and connection with soil particles, plants are better provided with these elements.

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