METHOD FOR CONTOUR DEEP LOOSENING WITH VERTICAL MULCHING OF THE SOIL OF SLOPING LANDS Russian patent published in 2022 - IPC A01B79/00 A01B13/16 A01B13/08 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture, in particular to methods for combating water erosion on sloping lands. The method includes the use of a subsoiler, while forming a digital relief model of the cultivated area of the agricultural landscape, using a navigation terminal with a measuring system, located on the harvesting equipment during the period of combining crops in the cultivated area. To continuously determine the longitudinal and transverse slopes of the combine in the direction of travel, it is reloaded into the navigation terminal of the machine-tractor unit. For the first horizontal slope H take a horizontal line close to the watershed line. The trajectory of movement of the machine-tractor unit along the horizontal slope with height above sea level H is set in the process of contour deep loosening with vertical mulching of the soil. Wherein at the end of the rut on the cultivated area, the machine-tractor unit each time moves along the slope to the horizontal with a height above sea level Н+ΔН, where ΔН is a variable determined by the hydrodynamic characteristic of the underlying surface on the agricultural landscape, which is the height difference for horizontal slope with minimum potential soil washout M_min, t/ha, ΔН=M_min/(hnmσλβk), where h is the intensity of rains, showers, snowmelt; n is a parameter that takes into account the type of soil; m is a parameter that takes into account the mechanical composition of soils; σ - runoff coefficient; λ - coefficient taking into account the degree of soil erosion; is the coefficient taking into account the exposure of the slope; β - coefficient taking into account the shape of the slope; k - coefficient of erosion hazard of crops.

EFFECT: method provides an increase in the accuracy and efficiency of the operation of contour deep loosening with vertical mulching of the soil by a machine-tractor unit on an agrolandscape of sloping lands.

1 cl, 2 dwg