Production of biohumus by microbiological processing of forestry wastes

¹ “Tashkent Institute of Irrigation and Agricultural Mechanization Engineers” National Research University, Tashkent, Uzbekistan
² Almalyk branch of the Tashkent State Technical University named after Islam Karimov, Almalyk, Uzbekistan
³ Termez State University, Termiz, Uzbekistan
⁴ Termiz State Pedagogical Institute, Termiz, Uzbekistan
⁵ Kuban State Agrarian University named after I. T. Trubilin, Krasnodar, Russia

^* Corresponding author: mm.choriyev@tiiame.uz

Abstract

The article discusses the relevance and feasibility of biotechnology for the rehabilitation of ecosystems, in particular, rural areas. An integrated approach to the processing of agricultural and forestry wastes, such as bark dumps, is proposed in order to reduce the negative impact on the environment and obtain valuable products. The research was carried out in Perm Krai and included the stages of sorting, microbiological treatment of waste, and application of the resulting biohumus into the soil. As an example, the recycling of pulp and paper mill bark dump was considered, where a method of microbiological processing with vermiculture was developed. This allowed to reduce the volume of waste, reduce its fire hazard and obtain biohumus rich in humic acids. The obtained biohumus was successfully used as an organic fertiliser, which resulted in a 20-35% increase in the yield of barley, oats, wheat and vegetable crops compared to control plots. The research confirms the effectiveness of the proposed method for solving environmental problems and improving soil fertility, as well as its difference from traditional waste utilisation methods.