SELENIUM-CONTAINING MICROFERTILISER Russian patent published in 2008 - IPC C05D9/02 

FIELD: chemistry.

SUBSTANCE: invention concerns agrochemistry, particularly microfertilisers for vegetable and forage cultures. The selenium-containing microfertiliser includes mordenite-containing tufa milled to 0.5-0.8 mm grains and is obtained by modification with HSeO₃ ions during saturation in 0.01 - 0.015% sodium hydroselenite solution NaHSeO₃ for 18-20 hours at the tufa-solution mass ratio of 1:8 - 1:9.

EFFECT: improved crop yield and quality of forage and vegetable cultures and increased microbiological and fermentation activity of soil.

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