How to control broadleaf weeds in rape fields

With the vigorous use of grass weed control herbicides, the proportion of dominant weed species in winter crop rape has gradually declined, and broad-leaved weeds have risen significantly, such as cattle breeding, swine fever, etc. The formation of mixed communities of single and dicotyledonous weeds. Therefore, it is necessary to use a mixture of herbicides in rapeseed fields so as to prevent monocotyledonous weeds and broadleaf weeds, so as to broaden the herbicide spectrum.

1, 50% high Turk suspension agent. This is a selection of post-emergence herbicides that are suitable for controlling annual broad-leaved weeds that are dominated by C. variabilis, C. brevicornus, C. quinquefasciatus, and B. rapa. During the application period, in the 6-8 leaf stage of live rapeseed, after transplanting rapeseed green, weed 2-3 leaf stage is appropriate. 25-35 ml per mu (1 mu = 1/15 ha), and the upper limit is based on swine fever.

2, 6.9% Wei Pa dense emulsion. The herbicide is a highly active herbicide, and the application period is relatively flexible. It can be applied from the third leaf stage to the tillering stage of weeds. It is effective for control of annual weeds such as Weed, Qianjin, Madang, Setaria, etc., especially for older weeds. 6.69% Weiba Baung emulsion 600-900 ml per mu was used to spray 30 kg of weed stems and leaves.

3, green McLagron kill grass Dan. Use 25% of green mellon 150 grams per acre plus 50% 150 grams of herbicide and 20-40 kg of water. The ground spray is used for soil treatment to control grass weeds and broadleaf weeds. This agent is suitable for transplanting rape fields.

4, Durga glyphosate. 72% per acre with 50 ml plus 10% glyphosate 400 ml, 20-40 kg of water, spraying rice straw and soil spray 2-4 days before transplanting rapeseed deal with.

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