METHOD OF ARRANGING MOLE DRAINAGE ON DRAINED LANDS Russian patent published in 2023 - IPC E02B11/00 A01B79/02 

FIELD: agriculture.

SUBSTANCE: method of arranging mole drainage on drained lands. On drained lands, mole drains with a depth of 0.5-0.7 m are arranged across the direction of tubular drainage. To do this, pre-drained sections of tubular drainage are isolated with a width of 5 to 7 depths of tubular drains, and at the time of the installation of mole drainage within the selected adjacent sections, fine powder of copper pyrite with a particle size of 0.02 to 0.06 mm is fed into the cavity of mole drains in the norm from 30 to 50 g/m.

EFFECT: reducing the intensity of tubular drainage ochretization, which increases the water permeability of the soil-ground layer and accelerates the removal of excess water.

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