ECO-BLACK SOIL AND CONCENTRATED SOIL SOLUTION, APPARATUS AND PREPARATION METHOD THEREOF Russian patent published in 2011 - IPC C05G3/08 C05F11/08 

FIELD: chemistry.

SUBSTANCE: invention relates to agriculture and soil science. Eco-black soil consists of soil containing 5-8% humus. The soil structure is formed by fine - 0.1-0.3 mm and coarse - up to 10 mm lumps whose colour varyies from light brown to black and pH 6-8. The eco-black soil is populated with earthworms and microflora typical for virgin black soil and containing cellulose-decomposing fungi, lithotrophic microorganisms, lactic-acid bacteria, nitrogen-fixing bacteria and nitrogen compound decomposers. The concentrated soil solution consists of an aqueous extract of eco-black soil containing dissolved components of humus and microflora, and whose colour varies from light yellow to dark brown and pH 6-8. In the method, a drainage system is formed in insulated vessels and a horizontal layer containing an organomineral mixture is placed over the said drainage system. Eco-black soil containing black soil-forming organisms is put into the horizontal layer in amount of 5-20% of the total volume of the layer. Optimum processing conditions are maintained and at the end of processing, water is sprayed onto the horizontal layer and the filtrate is sorbed. The apparatus contains vessels with a liquid-permeable bottom placed in a room, sprinkling and filtrate collecting devices and devices for feeding and heating air. The vessels are fitted with devices for controlling temperature and moisture. The sprinkling devices are fitted with liquid-spraying apparatus. Inside each vessel from bottom-up there is a drainage layer, a layer of organomineral mixture in whose depression the initial volume of black soil is placed, and the processed layer of organomineral mixture.

EFFECT: group of inventions increases fertility and yield of plants on a small area.

9 cl, 2 dwg