What do you know about the use of herbicides in vegetable fields?

? Vegetables are a kind of food that we can see every day and often appear on my dining table. But do you know how vegetables weed? What should I pay attention to when weeding? Let's take a look at what we need to pay attention to when weeding in vegetable fields.

? First of all, choose the right herbicide. With the progress of science and technology, a variety of herbicides have entered the market. When we choose herbicides, we should choose according to the grass growing in the vegetable field. For example, there are systemic, conductive and contact herbicides. Let's introduce contact herbicides. As the name implies, contact herbicides are sprayed on the soil surface or leaves, and will not spread to the roots, flowers and fruits of plants. On the contrary, they will be killed as soon as they come into contact with grass. Therefore, when we choose herbicides, we try to choose contact herbicides. Then there is the demand for land. When using herbicides in vegetable fields, it is required that the soil is flat and moist, which creates good conditions for weeds to germinate and is conducive to pesticide application and one-time elimination.

After selecting the herbicide and tidying up the lawn, you should know when to apply it. The best time to apply herbicides is 40 days after the seedlings grow. At this time, the seedlings have resistance and weeds begin to appear, which has a good killing effect. Secondly, the dilution of herbicide, when we dilute it, we should prepare it in strict accordance with the proportion of the instructions, not too much and not too little. Too much may lead to the death of vegetable seedlings, and too little may not achieve weeding effect. When diluting, we dilute a part of water first, and then mix it with mother liquor for the second time. After the preparation work is completed, start to apply pesticide. When applying pesticides, spray them evenly on every piece of land. Don't spray too much or miss it. Excessive spraying may cause damage to nearby seedlings, and missed spraying can not achieve weeding effect. Then choose the weather. Do not choose to apply pesticides in extreme weather, strong winds and rainy days. Strong wind will blow the sprayed pesticide unevenly, and heavy rain will wash away the newly sprayed area, and the weeding effect will not be achieved.

? The above are my views and methods on the use of herbicides in vegetable fields.