METHOD OF DESALINISATION OF HEAVY SALINE LANDS Russian patent published in 2015 - IPC E02B13/00 B09C1/00 A01G25/00 

FIELD: agriculture.

SUBSTANCE: for desalination of heavy saline lands, water is supplied to the desalinisation site, the slits 3 are cut, the irrigation pipes 6 with droppers 7 are placed along the central axis of the inter-slit bands, the inter-slit bands are covered with waterproof screens. Then the wash water is fed through the droppers 7, the soil with salt is moved from the walls of the slits 3 at their bottom after the termination of washing, and the slits 3 are poured. Before cutting the slits 3 the deep loosening 2 is carried out. The slits 3 are cut with a bias of the bottom towards the collector and matched with it. Along the central axis of the inter-slit bands the troughs 5 are formed by compacting, in which the pipes 6 with droppers 7 are placed. After moving to the bottom of the slits 3 of soil with salt they are poured first with gravel as the layer of 0.2-0.3 m, then with sand of the field surface. Then, the site surface is levelled and ploughing is carried out with the formation of the arable layer.

EFFECT: increased efficiency of desalination of heavy saline lands with minimal cost of water, diversion of excess precipitation with removal of salts beyond the desalinisation site.

3 dwg