What are the latest methods for weed control in wheat fields?

Wheat is a staple food in northern China and, after rice, another major grain crop grown in our country. Wheat is highly resistant, but it still requires proper field management to achieve high yields, and weed control management within field management is a very important step. So how should weeds be controlled in wheat fields? Let's take a look together below.

1. Weed control timing

Throughout the entire growth process of wheat, weed control is usually needed multiple times. Only when weed control is carried out at the appropriate time can the weeds in the field be eliminated as thoroughly as possible. It is usually best to carry out weed control in November each year and around February or March each year. Other weed control times are mainly determined according to the growth conditions of weeds in the wheat field, so as to reduce nutrient loss and thus promote wheat growth.

2. Weed control methods

There are generally three weed control methods. The first is intertillage weed control, the second is manual weeding, and the third is weed control through pesticides. Intertillage weed control is generally used in the early stage of wheat seedling growth, as this can enhance soil permeability, promote nutrient absorption and reduce nutrient consumption. Manual weeding is generally a method used for weed control in the later stage of wheat growth, because at this time the wheat is basically approaching maturity. If other methods are used for weed control, they will affect the yield and quality of the wheat, so choosing manual weeding is the most correct weed control method. In the middle stage of wheat growth, we can use pesticides for weed control. This can eliminate the weeds in the field to a great extent, allow the nutrients in the field to be fully absorbed and used by the wheat seedlings, thereby increasing wheat yield, and it will not harm the quality of the wheat.

3. Key points of weed control

For manual weeding, it is best to choose a rainy day, as the weeds in the field can then be pulled out easily. For intertillage weed control, it is best to choose noon on a sunny day, when the sun is stronger, so that the removed weeds will be dried out by the sun and new weeds are less likely to grow again. For pesticide weed control, it is best to choose the morning or noon of a cloudy day to carry out weed control, and when choosing pesticides, suitable agents should be selected.

4. Precautions

The precautions for weed control in wheat fields mainly target pesticide weed control, because if pesticides are not used well, it will cause huge losses. First, when choosing pesticides, we should select pesticides specially used for weed control in wheat fields. Second, the proportions of the pesticides should be reasonably matched. Then, when carrying out weed control, a windless day or a day with a slight breeze should be chosen, so as to avoid the pesticide being blown onto the wheat by the wind and causing the wheat to wither. At the same time, weed control cannot be carried out before rain, as the efficacy of the pesticide will be greatly reduced. Finally, it also cannot be chosen on a sunny day with high temperatures, as this will cause pesticide damage.