SU1435179A1 - Method of controlling weeds - Google Patents

Abstract

This invention relates to agriculture. The aim of the invention is to increase the effectiveness of weed control. The invention makes it possible to cultivate crops on overland plowed horizons of non-littered soil layers in the upper arable horizon for 3-5 years, and then to destroy weed stocks accumulated during the previous year. Multiple-depth plowing is carried out in cycles, and in the cycle they start from the maximum depth, and then within 3-5 years it is reduced by each subsequent crop by 2-3 cm compared to the previous one and finished to the initial one, after which weeds that germinate on elevated clogged layers.

Description

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This invention relates to agriculture, in particular to methods for controlling weeds.

and, invented in the first place, the effectiveness of weed control.

The method is carried out as follows: M.

A crop is selected in the crop rotation, for example, iodine, which, for example, requires the maximum plowing depth (32 cm) and produces a total of 180 degrees of turnover of elast. With this, the top clogged soil layer is laid down and sealed at the bottom of the arable layer. The following year, the plowing depth is reduced by 2-3 cm (uniformity of depth when plowing is ± 1 cm on the leveled field and ± 2 cm on the non-leveled field), which does not raise weed seeds embedded in the upper plowed horizon during the previous plowing. The newly clogged upper layer reverses pas 180 ° and is laid on the bottom of the furrow 2-3 cm above the clogged layer from the previous plowing. In the third year, the depth of Bcnanics is reduced by another 2–3 cm and the newly clogged upper layer is at the bottom. During this time, non-clogged soil layers are raised to the surface, and weed seed layers accumulate in the lower part of the arable layer. Since the seeds of most weeds are able to germinate from a depth of ~ 10 cm, then, being at a depth of 23-32 cm, they fall into conditions unfavorable for germination and do not harm the vegetative culture. Then it is plowed to the original depth for steam or culture, in which weeds can be effectively controlled. With this accumulated0

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In the lower plowed horizon, the clogged layers turn over 180 ° and rise to the upper plowed layer, where weed seeds fall into favorable conditions for germination. After germination, they are destroyed by mechanical, chemical or other means.

During the rotation of the crop rotation cycles may be several. At the same time, the maximum depth for a cycle may be different and depend on the cultivated crops.

The proposed method makes it possible to cultivate crops for 3-5 years on the non-littered soil layers raised to the upper arable horizon, which reduces the weediness of these crops, labor and funds to combat weeds in these years. At the end of the cycle, it is possible to destroy all the stock of weeds accumulated in the arable horizon. The method eliminates the dispersion of seeds of weeds over the entire depth of the arable horizon and contributes to the improvement of crop farming.

Claims (1)

Invention Formula The method of weed control, including deep plowing with full reservoir plowing, characterized in that, in order to increase the effectiveness of weed control, long back plowing is carried out in cycles, and the cycle starts from a maximum depth, and then for 3-5 years it is reduced by 2–3 cm under each subsequent crop as compared with the previous one and ends on the initial one, after which it is destroyed in weed layers raised to the top.