FIELD: land reclamation.
SUBSTANCE: invention relates to amelioration of rain-fed agricultural lands. Method of combined treatment of saline complexes of rain-fed lands, which includes pre-project investigations with preliminary soil reclamation survey of the site, the formation of bands with crushed soil, alternating with stripes of the ends, creation of fertilizer layers in the bands of crushed soil, three curvilinear subsoil surfaces of the bottom of loosened soil for tapping and removing water with products of chemical reactions into bands with halophytes, combination of complex diagnostics of soil conditions on aerial photographs and results of scant soundless echolocation with simultaneous introduction of the received data onto the magnetic medium of a personal computer with geo-referencing, preparation and transmission in digital form of programs to the control processor of the combined unit and the subsequent application of the meliorant to the surface of the soil (loose lime or phosphogypsum) and in soil layers with water-insoluble salts (pulverized – iron sulfate or liquid – waste electrolyte, sulfuric acid solution), and provides for the combination of complex soil treatment with a strip mechanical grinding of the stems of herbaceous plants, turf, soil aggregates with separation into fractions and with the formation of cracks in the strips of turf or stubble headlands with simultaneous voluminous soil and subsoil loosening, in this case, a layer of organomineral biological active fertilizer mixture (OMBAUS) is laid in the thickness of 0.03–0.09 m in soil tracts treated with disks with chipping and knife blades with preliminary crushing of its components with a size of up to 4–8 mm of the organic component, up to 1.5–3.0 mm of the mineral component of the mixture with its composition, vol. %: 35–50 plant residues with nitrogen-fixing associated bacteria – mizorin, humus and additionally (if available in the region) peat, carbonate sapropel with inclusion of H2O2, 3–10 powdered montmorillonite with a microelement of molybdenum, 15–40 marine mixed type of sediments, 0–15 iron vitriol, 10–37 clay and NPK mineral fertilizers, and between the shredded discs in strips of soil with turf or stubble, slits are cut with feeding meliorants behind the racks of longline rippers, and behind the disc coulters of the pneumatic seeder is introduced an aqueous solution of ammonia or liquid manure, which has passed accelerated aerobic digestion, strip sowing and leveling of sowing grooves are carried out, and seeding of seeds introduced on the soil surface is carried out.
EFFECT: method allows to shorten the time for reclamation of meadows and arable lands of dry lands with the presence of spots of alkaline soil, saline complexes and subsoil lenses of saline lens, increases productivity of agricultural lands with dense cultivation of plants with simultaneous desalinization of soils.
3 cl, 2 dwg
