Which herbicides should be used for heat preservation cultivation of vegetables?

April 25 15:08:02, 2023

In the low temperature season, in order to make vegetables sell a good price in the morning market, in recent years, the method of covering the mulch film is used to increase the temperature and heat preservation to promote the early maturity of vegetables, and at the same time, the application of pesticides and herbicides can save labor and increase efficiency. However, many years of experience in chemical weeding in the film tell us that if the herbicide used is inappropriate or the application method is wrong, the weeds will not be eradicated, the second will cause the vegetables to cause phytotoxicity, and the third will pollute the environment. Reduce the market value of vegetables. In order to give full play to the effect of herbicides, the herbicides suitable for solanaceous, legumes and leafy vegetables are as follows:

Solanaceous vegetables such as tomatoes, eggplants, peppers, etc., optional herbicides: 72% Duer emulsifiable concentrate 100-150 ml per mu or 48% dilamine emulsifiable concentrate 150-300 ml per acre, respectively, 30 kg of water Covering the mulch after sowing; 33% weeding emulsifiable concentrate 150-300 ml per mu or 24% gerol emulsifiable concentrate 50-100 ml per acre or 50% sikhot WP 5,000 g per acre, respectively, 40-50 kg of water, Cover the mulch after spraying the drug before seeding.

Beans such as peas, edamame, cowpea, etc., optional herbicides: 48% trifluralin emulsifiable concentrate 100-150 ml per mu, 40-50 kg of water; 50% oxalofenone wettable powder per mu active ingredient 23-45 grams, 40-50 kg of water, apply soil before planting, and then plant the film; 33% weeding emulsifiable concentrate 150-200 ml per mu, 50% acetochlor EC 70-mu 150 ml, 40-50 kg of water, or 50% of Cimajin WP, 33-100 g per mu of active ingredient, 40-50 kg of water, applied to the film before seeding.

Cruciferous vegetables such as Chinese cabbage, red cabbage, cabbage, cauliflower, etc., optional herbicides: 33% weeding emulsifiable concentrate 100-150 ml per mu, 48% cable emulsifiable concentrate 150-200 ml per acre, 50% 100-150 ml per mu, 50% Dahuili WP can be 100-200 g per acre, 40-50 kg per water, sprayed on the surface before filming.

There are several points to note when applying herbicides in the membrane: First, the amount of water per mu should not be too low. Only by ensuring humidity can the herbicide be enhanced and penetrated. Second, it should not be sprayed repeatedly when applied. Avoid increasing the concentration to produce phytotoxicity; third, the volatility of trifluralin and oxazinone is strong. After application, be sure to mix well with the soil and mix well to 2-3 cm. Fourth, the film must be strict. It is not allowed to leak the medicine or leak the cover film. It is found that the membrane should be covered in time.
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