The use of environmentally secure means of biological reclamation in order to prevent soil degradation processes

The article shows the importance of high-tech organic fertilizers of the new generation on the example of multi-purpose compost in the maintenance and reproduction of soil fertility. With increasing degradation of the soil cover of arable land, such fertilizers in combination with other means of farming systems with bio meliorative properties (perennial grasses, green manures, phytomeliorants), intensively activating soil microflora, affecting agrochemical and water–physical properties, can quickly restore and optimize the basis of fertility — soil organic matter. Therefore, in modern agriculture in the last 15–20 years, preference is given to the production of non-traditional high-tech biologically active and environmentally friendly organic fertilizers (composts) obtained by the method of bioconversion of organic raw materials. In the model experiment, the effect of multi-purpose compost, introduced at a dose of 15 t/ha, on the basic water–physical properties at different water regimes of dried gleyed loamy sod-podzolic soil was determined. The experience was laid in special vessels equipped with water regulating device. Studies have shown that multi-purpose compost at a dose of 15 t/ha by the fifth year after application, primarily affected the soil density of the arable layer, as well as porosity, moisture capacity, the amount of water readily available to plants, water permeability. So, with bilateral regulation of the water regime, the decrease in density was 5.8%. This, in turn, affected the increase in soil porosity to 4.8–5.2% and an increase in the reserves of productive moisture in the arable horizon. Thus, fertilizers obtained on the basis of the bioconversion of organic raw materials can improve soil indicators and help prevent degradation processes in agriculture