SU402343A1 - METHOD OF COMBATING WIND Erosion - Google Patents

Description

I

The invention relates to the field of agriculture, in particular to methods for combating wind erosion of soil.

There is a known method to combat wind erosion, for example, cotton zeros by applying a protective venousness to the soil surface.

The known methods do not sufficiently provide soil resistance to blowing.

In order to increase the resistance to blowing over the proposed method, sulphite-alcohol bard is used as a protective substance - waste pulp and paper industry. The soil is treated with a solution of sulfite-alcohol stillage concentration from 5 to 20%.

The described method is carried out as follows.

Sulfite alcohol bard is applied to the soil surface.

Sulfite-alcohol bard (PRS) is a calcium salt of lignosulfonic acids with an admixture of reducing substances (sugary) and mineral. They are products obtained in the production of cellulose: when boiling wood with a solution of calcium bisulphite, or when boiling wood with a solution of magnesium bisulphite, or during sulphite and soda cooking.

Sulfite-alcohol bard is a drug benzine, it is easily dissolved in water, after application to the soil it is resistant to precipitation and irrigation water, application to the soil does not cause technical difficulties. The applied film on the soil surface is easily punctured by seedlings of plants, for example cotton.

The soil preparation is preserved until the appearance of 3-4 sympodial branches on the arbor, when applied to the soil the drug does not coagulate, protects the soil from being blown, and the plants from notching.

Experiments to combat wind erosion on cotton plantations were carried out with the introduction of sulfite-alcohol stillage in the normal range of 100, 150, 200, 250 and 350 kg / ha of active principle. The experiments were carried out in triplicate. The area of each case is 3,000 m.

At the experimental plot, a 153-f. Cotton variety was sown. The application of the solution to the soil was carried out by spraying OBT-1 with a tractor “Belorussia with a spraying width of 20–25 m in one pass. A diluted 12.5% solution of PRS is used for spraying. A solution of the drug is sprayed on the surface of the soil after sowing cotton, until the appearance of seedlings.

After applying the PRS to the soil until 80% of the cotton seedlings appear, the soil moisture under the film is determined.

Humidity on average was 3-4% more than at the control, i.e., on the site without spraying.

An increase in the moisture content of the upper layers of the night creates favorable conditions for the uniform appearance of the seedlings of the cotton root in the areas covered with PSI and IRE.

Spraying with a PRS preparation increases the soil macrostructure. An increase in the number of macrostructures larger than 0.5 mm in size and 45-60% drastically reduces the opening of the night.

An increase in valuable agronomic aggregates not only prevents wind erosion, but also improves the water-physical properties and the nutritional regime of the soil.

After applying the PRS drug in a period of time, the territory of the pilot site was several times in the zone of strong dust storms.

At the control, cotton crops died and were cut, on the experimental plots, where PRS was applied on the soil surface, the seedlings were preserved depending on the applied dose of the preparation and, accordingly, received a different crop.

Accounting harvest showed the following.

After co-seeding and subsowing, on the average, the coitrole was obtained:

raw cotton9.8 c / ha

when making 100 PRS12,3 c / ha

with a visage of 150 kg / ha PRS14.0 ts1ga

when making 200 PRS 15.6 cm1

with the introduction of 250 kg / ha of PRS 16.6 with the introduction of 350 kg / ha of PRS 15.4 t / ha Cost of 1 ton of PRS 100% to 1 center of 30 rub .; transportation, spraying the floor and other expenses of about 55 rubles. A 1 ha haul requires 250 kg of 100% PRS.

The cost of covering 1 hectare is 63 rubles. Using sulphite-alcohol stillage as an anti-erosion agent at the same time as improving water-physical soil properties and creating a mulch film can give an additional 150,000 tons of cotton fiber per year according to preliminary calculations for the whole cotton sector of the republic while reducing the costs of its production. At the same time, the non-fertile arable layer of the soil subjected to erosion is preserved, and the economic effect is additionally obtained, since cheap waste from pulp mills will be used in large quantities.

Subject invention

Claims (2)

1. A method for controlling wind erosion, for example, cotton fields, by applying a protective substance to the soil surface, characterized in that resist the soil to blowing, as a protective substance use sulfite-alcohol bard - waste pulp and paper industry. 2. A method according to claim 1, characterized in that the soil is treated with a sulfite-alcohol stillage solution by means of a recovery from 5 to 20%.