METHOD OF OBTAINING BIOORGANIC FERTILISER Russian patent published in 2014 - IPC C05F11/00 

FIELD: chemistry.

SUBSTANCE: invention relates to agricultural biotechnology and can be used for obtaining soil fertility increasing fertilisers from tobacco waste products by composting. A method of producing a bioorganic fertiliser includes preliminary preparation of a trench in the selected part of a field. Initial components of a compost mixture are dosed in specified amounts, wt %: tobacco dust - 40-60, soil (chernozem) - 20-40, lowland peat - 10-30, and mixed. The obtained homogenous mixture is placed into trenches and moistened to 50-60%. Composting is performed for 60-65 days in a natural way at atmospheric pressure and an average daily air temperature not lower than 15°C. Sampling of the homogeneous compost mixture is performed tree times with determination in samples of nicotine content, pH value and cellulose-lytic activity: before placement in the trench, 30-35 days after it and at the end of the mixture composting process.

EFFECT: invention provides safe utilisation of the main waste product of the tobacco industry, increases fertility and improves the soil state due to application of the environmentally friendly organic fertiliser, balanced in the main nutritional elements.

2 tbl, 3 ex