Soybean response to organic fertilizer based on bird manure

Abstract

Organic fertilizers based on chicken manure have a diverse composition of basic nutrients and microelements, which is their advantage over mineral fertilizers. The introduction of organic fertilizers obtained based on chicken manure improves the biological activity of the soil. The study aims to determine the effectiveness of using bird droppings as an organic fertilizer to conserve soil bioresources and increase soybean productivity. In the course of the work, the authors tested new organic fertilizers based on chicken manure obtained using a cavitationvortex heat generator by processing semi-dry manure. Their influence on soil microbiological indicators, growth, development, and biometric characteristics of soybean plants, phytosanitary condition of crops, productivity, and product quality was revealed. The authors also found that fertilizers based on chicken manure help to improve the microbiological characteristics of the soil, which increases the availability of nutrients for plants. The authors note a change in the number of mycomycetes at the beginning of the growing season: a decrease of 68% with the use of Preparation 1 and an increase of 35.6% with the use of nitrogen fertilizers. Pre-sowing introduction of preparations into the soil and processing during the growing season activate the vegetative development of plants and contribute to an increase in the yield of green mass and grain. The greatest effect was obtained when preparation 2 was applied under soybean. The increase in soybean grain yield was 0.2–0.3 t/ha or 8–14% of the control. The authors also found that treatment with drugs improves the structural parameters of soybean plants: the number of beans per plant increases by 6–8%; by 18–23% - the mass of grains from one plant; the safety of plants for harvesting increases by 2–4%.