METHOD OF BIOLOGICAL REVEGETATION OF TECHNOGENICALLY DISTURBED LANDS Russian patent published in 2014 - IPC A01B79/02 B09C1/00 A01G1/00 

FIELD: chemistry.

SUBSTANCE: invention relates to field of agriculture, in particular to revegetation. Method includes sowing perennial grasses with introduction of mineral fertilisers. Vermiculite substrate with granules up to 2-4 mm and pH from 6.5 to 7.2 is placed on ground in up to 1 cm layer. Seeds of grasses are sown on substrate surface with their irrigation with water solution of mineral fertilisers. After that, substrate surface is covered with polymer film, which is removed on 5-7 day. Vermiculite substrate represents swollen vermiculite with pH from 6.5 to 7.2, obtained by method of high-temperature burning at temperature up to 850°C with regulation of rate and temperature of burning, containing wt %: silicon oxide (SiO₂)-34.0-36.6; iron oxide (Fe₂O₃)-5.6-6.5; aluminium oxide (Al₂O₃)- 9.1-9.9; magnesium oxide (MgO)-24.7-26.6; iron oxide (FeO)-0.20-0.27; titanium oxide (TiO₂)-0.40-0.47; calcium oxide (CaO)-1.02-1.22; manganese (Mn)-0.05-0.07; potassium oxide (K₂O)-0.70-0.87. Before application of vermiculite substrate layer on very dense ground, its tillage is carried out.

EFFECT: method makes it possible to increase efficiency of formation of sown culture phytocenoses and their longevity, initiate processes of seed germination and further growth and development of herbaceous plants and reduce terms of formation of culture phytocenoses.

3 cl, 3 ex