Biotechnological preparation of sewage and livestock manure from livestock farms for the needs of horticulture

¹ State Federal-Funded Educational Institution of Higher Professional Training “Don State Agrarian University”, Krivoshlykova 24, rural settlement Persianovskiy, 346493 Rostov region, Russia
² State Federal-Funded Educational Institution of Higher Professional Training “Don State Technical University”, Gagarin Square 1, 344000 Rostov-on-Don, Russia
³ Kabardino-Balkarian State Agricultural University named after V.M. Kokov, Lenin Avenue, 1V, 360030 Nalchik, Russia

^* Corresponding author: bondanmih@rambler.ru

Abstract

Ensuring food security of the state provides for obtaining high yields of agricultural crops and the development of livestock facilities. The aim of the investigation is to develop an accelerated biotechnological preparation of sewage and livestock manure from livestock farms for irrigation of pastures and fertilization of fields for forage crops. Closed-loop systems for products output on pig farms and cattle farms using biotechnology for the preparation of livestock manure for irrigation of fields in the production of forage crops have been developed. The biotechnology of accelerated preparation of sewage and liquid livestock manure is based on the principles of their mechanical separation into fractions with the subsequent preparation of liquid concentrated organic fertilizers using nutraceuticals, which speed up the processes of their preparation in a much shorter time than using traditional technologies. A closed-loop system for products output on sheep and pig farms and cattle farms using biotechnology is proposed. The basis of biotechnology in the processing of solid livestock manure is the principle of accelerated components composting using nutraceuticals. The implementation of accelerated preparation system of sewage and livestock manure for irrigation of pastures and fertilization of fields for forage crops contributed to an increase in their yield up to 20.54%. At the same time, the milk yield per forage cow increased by 8.47-14.20%; average daily weight gain - by 13.30–47.73%.