RU2196400C2 - Method for controlling soil water erosion on sloped meadows - Google Patents

Abstract

FIELD: agriculture. SUBSTANCE: method involves applying fertilizer in strip extending transverse to slope on soil surface at the beginning part of slope. EFFECT: reduced water erosion of soil on sloped meadows and increased productivity of soil. 2 ex

Description

 The invention relates to agricultural production and can be used on pastures to prevent water erosion and increase their productivity.

 A known method of combating water soil erosion on sloping pastures (A. S. the USSR 1435171, class A 01 13/16, 79/02).

 The disadvantage of this method is its high energy intensity, caused by laying water-absorbing slots and planting plants on their bottom.

 The closest in its technical essence is a method of combating water erosion of soils on slope pastures, including applying fertilizers with a strip across the slope (A.S. USSR 1072828, class A 01 B 13/16, 79/02).

 The disadvantage of this method is its complexity, caused by laying cracks and sowing herbs in them.

 The present invention is the development of energy-saving technology that reduces water erosion of sloping pastures.

 The present problem is solved in that in a method of controlling water soil erosion on slope pastures, including applying fertilizers with a strip across the slope, applying fertilizers with a strip across the slope is carried out over the soil surface, at the beginning of the slope.

 The method is as follows.

 Mineral fertilizers are applied to the pasture, at the beginning of the slope and across its strip, along the surface, for example, on the surface of the grass stand. Rainfall erodes these fertilizers and spreads the streams formed during the rain. In this case, the dissolved part of the fertilizer enters the soil along the entire channel of the stream, and undissolved grains remain spaced along its entire length. The root system of plants located along the channel, from the excess of nutrients grows, strengthens and prevents the soil in the channels from erosion, reducing the flow rate.

 Example 1. On a pasture with a grass stand, beetless rump, meadow fescue, a hedgehog team at the beginning of the slope across its direction were applied (strip) fertilizers (N, P, K) at the rate of 200 g per linear meter in the ratio 1: 0.8: 0.78; fertilizers were introduced in mid-May. The past rains eroded (partially) the fertilizers and carried them with their flows along the invisible channels.

 A month later, below the fertilizer strip along the pasture slope, the grass in previously invisible beds became significantly higher than usual, which is why previously invisible beds became prominent. The root system of plants in the channels during sampling was significantly different from the root system of plants from the bulk by the size of their sizes.

Example 2. On a pasture with a slope of 17-21 ^o to the surface moistened the day before the rain, liquid fertilizers were applied with a strip across the slope at its beginning. Fertilizers (liquid fraction of manure diluted with water) were introduced by self-spill from a moving tank. The flowing out liquid fertilizers flowed down the network of invisible channels into one, moistened and fertilized its upper layer, which was weathered after rain, without penetrating deeper layers of soil saturated with moisture. After a month, the root system of plants in the channels has significantly strengthened, as a result of which the soil in the channels has become less susceptible to water erosion.

Claims (1)

 A method of combating water soil erosion on slope pastures, including applying fertilizers with a strip across the slope, characterized in that fertilizing with a strip across the slope is carried out on the soil surface at the beginning of the slope.