EVALUATION OF AGROTECHNICAL EFFECTIVENESS OF BIOHUMUS OBTAINED DURING THE PROCESSING OF DEFECATE AND BEET PULP

A method for processing the waste of sugar production - defecate and beet pulp - into highly effective biohumus fertilizer was proposed in the Article. The defecate, dry pulp and spent litter straw were mixed at a ratio of 2:1:1 by volume, and periodically moisturized to a moisture level of 70%. After that, representatives of the derived subspecies of earthworms Eisenia foetida were added into the substrate, according to the standards 10-12 pcs. on 1 l of mix. Laboratory analysis of the physico-chemical properties of the defecate, beet pulp and biohumus found that the organic fertilizer obtained according to the proposed scheme has a close to neutral acidity, and the ratio of humic acids to fulvic acids is close to optimal. The remaining agrochemical indicators also make it possible to consider the resulting biohumus to comply with all the necessary norms of this type of fertilizer. To evaluate the agrotechnical effectiveness of biohumus, an experimental method was proposed and tested on an experimental site with sod-podzolic soil. The soil section and agrochemical characteristics of investigated soil profile were given in the article. Control soil without any fertilizer, pork manure, rotted chicken dung, peat and biohumus are offered as investigated soils. As a result of the experiment on the evaluation of agrotechnical effectiveness of biohumus obtained, it was found that the maximum growth of humus content of sod-podzolic soil was achieved with the introduction of biohumus - 30.6%, while the coefficient of humification was 0.21. The bioeffectiveness assessment experiment established that biohumus prepared on the basis of defecate, beet pulp and litter straw has a positive effect on Domodedovsky potato varieties. The number of tubers and their weight increased, and the yield increased by 30-40% relative to the control plot without fertilizer