SU1237102A1 - Method of protecting soil from erosion - Google Patents

Description

The invention relates to agriculture, in particular to methods of moisture accumulation in the soil, reducing erosion processes.

The purpose of the invention is to reduce erosion processes, increase water absorption and reduce energy costs,

Figs. 1 and 2 are a diagram illustrating this method.

Near the wings 1, a snow plume 2 is formed, under which the forgeries of the slots 3 are made to a depth exceeding the depth of the mean multiyear soil freezing 4, and a snow roller 5 is formed above the slit.

An example of implementation.

From autumn they create scenes at a distance of 15–20 m across the slope. During the period of the first snowfalls, a snow slab with a height of 15-20 cm is formed by the wind at the wings, which weakens the freezing of the soil, over which snow rollers are cut in the area of the snow loop of the scenes with the simultaneous slitting of the soil to a depth of 30-40 cm (mean multiyear, depth - and frost soils, for example, the pschz ddt in the period of nob - the first decade of December is 10-15 cm).

Covered with snow, the ice does not freeze over completely and the functions of absorbing water and transferring it to the lower ones are not formed; layers of arable horizon to the end of the snow nor. So that the snow does not inflate with the wind, a snow cover is created on the surface of the snow roller by irrigating it with an aqueous salt solution. If necessary, the salt solution is irrigated and the snow in the slip strip, which prevents it from inflating.

The proposed method allows to accumulate a large amount of snow in the first period of snowfall, which reduces the soil freezing depth by 30 Proposed 48

And 1, 2 86.2

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40%, increases water absorption by soil by 15-20%. Snow rollers with a dense snow crust, created on the surface of the snow plume on the surface, do not allow the wind to blow snow into micro-depressions, retain water during the same period of snow, and the gaps under the snow roller prevent it from flowing down, absorb water and transfer in the lower layers of the subsurface horizon.

Wiping is carried out with a distance of 15-20 m between the gaps, i.e. 10-13 times and 3-4 times less frequently than in the prototype, as a result of which the area of compaction of the soil is reduced by wok-. The slots are cleared and, therefore, soil washout is reduced. Energy consumption is reduced by reducing the number of passes of the unit when cutting gaps and trx running in the snow plume zone with shallow frost penetration. All this leads to an increase in the yield of agricultural crops (see the comparative table of the prototype and the proposed solution).

From the above data it can be seen that the implementation of the proposed technical solution allows, in comparison with the prototype, to increase water absorption by 37.2 mm, reduce water flow by 22 mm, flush the soil by 1.4 t / ha, and reduce energy consumption by 0.21 h / hour per 1 ha and increase the yield by 1.6-2, 1 c / ha.

Thus, the proposed method has a positive effect on the reduction of erosion processes, contributes to the productivity of yields, which allows it to be widely used in agricultural production.

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Editor M. Petrov

Compiled by S. Kuvaeva

Tehred L.Oleynik Proofreader E. Sirohman

Order 3212/1 Circulation 679 Subscription

VNIGOSh of the State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (2)

1 . METHOD FOR PROTECTING SOILS FROM Erosion, including the formation of wings for snow retention and fake slits, characterized in that, in order to reduce erosion processes, increase water absorption and reduce energy consumption, fakes are faked after snow falls in the zone of the snow plume of the wings to a depth exceeding the long-term average freezing depth of the soil, at the same time, along with cutting cracks above them, snow rollers form. 2. The method of pop. ^ characterized in that the snow rollers q are irrigated with saline water. ® ω fig-1