Recycling the tailings as fertilizer

Abstract

The research aimed at resolving the issues of utilizing the tailings as fertilizer is presented. The aggregate for the machine utilization of after harvesting tailings as fertilizer is described. This machine is designed to work on straw, from which it selects plant material and grinds it while simultaneously treating with a process solution of agents. The solution accelerates the decomposition process, and then the machine evenly distributes fertilizer ready for use with the possibility of simultaneous incorporation into the soil (depending on the traction class of the tractor used). The introduction of the process solution is carried out by fine spraying through centrifugal nozzles mounted on the nozzle ramp behind the distribution flaps. Four biological agents for the preparation of a process solution accelerating the decomposition of the tailings are considered: Agrinos 1, Sternifag, Ekorost and BTU Biocomplex. The results regarding influence of the tested agents on the decomposition rate of after harvest residues are obtained. The unit proposed for recycling the tailings as fertilizer has passed operational tests during the experiment. The power reserve in terms of the volume of the technological tank was 3000 ± 20 m, which provides 4 driving strokes, with an average bout length about 700 meters for the Ryazan region. Thus, refueling of technological tank is carried out on one side of the field. Measuring the operating speed showed it was 6-8.5 km/h for different bout lengths and evenness of the field, the hourly output was 5-5.5 ha/h.