Отримання органічного добрива з відновлюваної рослинної сировини

Abstract

The purpose. To study influence of application of processing barley straw by microbiological specimens and humate of potassium before composting with dung and peat on microbiological and agrochemical content of organic fertilizer. Methods. Model, analytical, statistical. They use fresh poultry dung with a moisture content 68%, peat (32%), and barley straw (14%). Straw of barley was treated before mixing together by solutions of microbiological specimens and humate of potassium (200 l of working solution for 1 t of straw). Duration of process of composting — 6 months Results. It is established that pretreatment of straw with microbiological and humate-containing specimens speeds up process of its decomposition. That, in turn, promotes martempering of quality of organic fertilizer. Microbiological and agrochemical characteristics of the gained organic fertilizers are brought. Regular application of organic fertilizer on the basis of straw will enrich soil with organic substance, components of mineral nutrition, useful microflora. That will raise its biological activity and will promote lowering of acidity. Conclusions. Treatment of barley straw before composting with microbiological specimen containing lactic acid bacteria, barm, purple not sulfuric bacteria or microbiological specimen, which basic component are cells of Azotobacter chroococcum, or humate of potassium promotes intense decomposition of nitrogen-free organic joints of straw, as well as heightening of a pool of microorganisms and quantity of fungi. As a result of composting of plant raw material for 6 months it is possible to get organic fertilizer with the content of organic substance not less than 70%, content of nitrogen on dry matter — not less than 2,8%, phosphorus — not less than 2,3, potassium — not less than 1,6%.