SU1447301A1 - Method of controlling perennial offset weeds - Google Patents

Abstract

This invention relates to agriculture. The purpose of the invention is to more completely eliminate weeds and protect the environment from contamination with herbicides. The clogged crops are fed for green fodder during the period of keeping the minimum supply of nutrients in the root shoots during the budding phase of the weed. Then, peeling of weeds is provoked by peeling and the outgrown rosettes are destroyed by flat-cut machining. After the pre-sowing tillage, a highly competitive winter crop is sown: winter wheat, winter rye or rape. The seeding rate is increased by 20-30% in order to suppress the remaining weeds in thickened crops. In the second year, all operations are repeated, and in the third year, any crop can be sown for any purpose. 2 hp ff. S (l

Description

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The invention relates to agriculture, in particular to methods for controlling weeds in crops of cultivated plants.

The purpose of the invention is to more completely eliminate weeds and protect the environment from contamination with herbicides.

The method is carried out as follows.

Strongly littered (more than 1 shoot per 1 m) crops by crop root crops grow in the budding phase - the beginning of flowering of weeds. In this phase, the smallest supply of nutrients is contained in root shoots. In calendar terms, this period comes in June. After this, a gradual accumulation of the pate begins. substances in the root and the formation of a kitsidkochnyh kidneys. In order to further deplete the root shoots, as well as to prevent the renewal of the growing season, the shearing is carried out immediately after harvesting. When this occurs, the cutting of plants with the complete destruction of the aerial parts. Root seed weeds begin to form new rosettes of leaves due to the residual supply of carbohydrates in the root system. When iioHBUBujUjMHCH reaches again with the 4-5 leaf phase rosettes, the field is loosened by a flat-cutter to a depth of 22-24 cm. At the same time, the weeds are re-pruned, and the possibility of their renewal is further reduced.

After the flat-cut loosening of the soil, pre-sowing treatment by cultivators is carried out for continuous tillage to the depth of som seeding and winter crops of flat seeding are sown on green fodder (winter rye, winter wheat, winter rape), while increasing the seed rate by 20-30% . The latter is produced with the aim of increasing the density of a hundred plants, since in dense crops of winter crops, the growing rosettes of weeds are inhibited due to lack of light. Moreover, the seeding rate should be increased by no less than 20%, since in less dense crops, weeds will not be sufficiently inhibited. Increasing the rate by more than 30% of that recommended in the zone is impractical, since in this case the crops get re-thickened, the plants become elongated, fall down, their winter hardiness decreases. Next year, winter crops for green fodder are harvested in June, the work package

0 repeat and again sow winter crops. In the third year, you can sow any culture. The application of the proposed method in field conditions allowed for 2 years to completely free the field from thickets of field baud when the initial number of its 25 shoots per 1 m.

The economic effect of the implementation of the method increases significantly if we take into account the almost complete cessation of soil erosion and the elimination of chemical contamination of the environment.

Claims (3)

1. The method of combating perennial spring weeds, which consists in mowing of weedy crops, cutting weeds when weeding the soil, destroying the weed outgrowths during flat-cutting tillage, characterized in that weeds and protection of the environment from contamination with herbicides, mowing of crops is carried out in the phase of budding of weeds with subsequent sowing after mechanical tillage of the soil of a highly competitive winter crop of continuous sowing with an increased seeding rate. 2. A method according to claim 1, characterized in that, as a highly competitive crop, winter rye, winter wheat, winter rape are used. 3. The method according to claim 1, characterized in that the sowing rate is increased by 20-30%.