FIELD: chemistry.
SUBSTANCE: weed plants are preliminarily mowed in discharge canal to water level and is left to dry. After drying reed and rush plants are selected. Selected plants are used as sorbent. Filtering cassette net of cassette-holding device is filled with sorbent. Sorbent-containing device is fixed in discharge canal bed in monolithic manner and drainage outflow is passed through it. Plant mowing and replacement of filtering cassette are carried out when rice plant passes from one vegetation stage into another.
EFFECT: invention makes it possible to improve reclamation state of soil and ecological situation on rice fields due to reduction of suffusion and removal of nutrients from soil.
2 cl, 2 dwg, 2 tbl
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