What are the precautions for weed control in wheat before winter? Summary of the latest key points

Weed control before wheat overwinters has many benefits. First, the cost is low. Second, when spraying chemicals in winter, the exposed area of weeds is large, which helps the weeds absorb more of the chemical and achieve a better weed control effect. Moreover, the earlier the weeds are controlled, the more beneficial it is to wheat growth and development and to the formation of strong seedlings. However, there are also several misunderstandings to pay attention to in pre-winter weed control. Let's take a look together.

1. Correctly choose the type of chemical

Before weed control, the first thing is to choose the chemical. Only by choosing the corresponding chemical in a targeted way can weed control achieve twice the result with half the effort. For example, for wheat fields mainly infested by broadleaf weeds, tribenuron-methyl dry suspension concentrate or sulfonylurea-series wettable powder products can be used; while for malignant grass weeds, fenoxaprop-P-ethyl aqueous emulsion or Sigma oil suspension concentrate is chosen.

2. Correctly choose the spraying time

When to spray is also a matter of knowledge, and three things should be observed. First, observe the emergence situation. Seedlings at the 3-4 leaf stage have a certain tolerance to herbicides, so spraying at this time can ensure the safety of the wheat seedlings, and at this time wheat has few tillers, which helps the weeds absorb the chemical. Try to avoid spraying at low temperatures. Second, observe soil moisture. If the soil moisture is poor, be sure to increase the amount of water used when applying the chemical. Third, observe the weather conditions. For application, try to choose weather with a stable temperature of 8-10 degrees and no wind or rain.

3. Do a good job of secondary dilution

Herbicides for wheat fields must use secondary dilution. First, use a small amount of warm water to dilute evenly in a small container, then pour it into the sprayer, add enough water, shake well, and then spray. Otherwise, a mottled effect will occur.

4. Do not miss spraying or spray repeatedly

Before spraying the chemical, inspect and repair the sprayer well to ensure normal operation, and resolutely eliminate dripping, leaking, and clogging. Operators should move forward at a uniform speed to prevent missed spraying or repeated spraying.

  The above is an introduction to the precautions for weed control in wheat before winter. I hope it can help you. If you want to learn more related knowledge, please follow us.