FIELD: agriculture.
SUBSTANCE: invention relates to biomelioration of agricultural lands. Method involves creation of 0.02 to 0.07 m thick liquid manure layer in soil layer, formation of water-regulating screen in subsoil layer, which is impermeable during precipitations, and permeable for plant roots during drought. Land plot is examined, striped, different-depth (0.65 to 1.0 m) preliminary soil cultivation in levels is performed, and at angle to its direction, main treatment of strip layer is performed. Base of screen is created with cross section of cosine shape and additional horizontal sections in extreme points of base profile. Strips are treated with subsurface, adjustable by depth, cutting of upper soil layer, and simultaneous treatment of underlying layer of soil and subsoil solonetz with application of chemical improver onto detached lumps. Layer is formed of liquid manure in hollow between trimmed soil layer and processed one with application of improver. Placement of organic and mineral mixture is performed using inertial and pressure feeding through hollows of different-depth, of 0.45 to 0.75 m, parabolic posts of volume tillers and between them, behind knives under dumps. Water regulating screen is placed below solonetz layer in form of two symmetric coupled layers with curvilinear surface and placing connections level above of edges.
EFFECT: method improves control of water volumes accumulated over screens for consumption of plant root systems, increases productivity of agricultural lands with simultaneous creation of conditions to reduce soil solonetz growth and preservation of surface layer without destruction of soil aggregates, and provides reduced period of melioration works, acceleration of effective operation of meadows, and ploughed field on dry lands.
4 cl, 2 dwg
