It is very important to plant wheat and weed. When can I use herbicides?

The use of herbicides in wheat plays an important role in the final high yield. At this time, I believe that all the friends who grow winter wheat have already finished sowing.

About wheat herbicide, it seems simple, but many friends make mistakes every year.

For example, when is the best herbicide for wheat? What is the appropriate temperature and humidity? What are the precautions when spraying herbicides?

The following little helper will tell you about it, and you can learn everything you want to know.

1. When is the best time to apply herbicides to wheat?

Generally speaking, there are two periods, years ago and just after the year. In detail, there are two periods: wheat seedling period and wheat turning green period.

According to previous years, the wheat seedling stage in most areas is about165438+1late October.

The turning green period of wheat is between late February and early March.

These two periods are the best time for spraying herbicides on wheat, and the control effect is good (sowing is too late in some areas, depending on the specific growth of local wheat). )。

2. What is the suitable temperature and humidity for applying herbicides to wheat?

The application temperature of winter wheat should not be too low. Generally, it is necessary to ensure that the daytime temperature is above 6 degrees, preferably better.

If the humidity is high, the weeding effect will be affected if the drought is particularly serious. Generally, the soil moisture content is 40%-60%, which is most beneficial to the drug effect.

At the same time, we also remind everyone that the herbicide for winter wheat is generally selected after 10 in the morning and before 16 in the afternoon, and ploughing is not allowed.

3. What are the precautions when using wheat herbicides?

When applying pesticides, we should pay attention to the weather in recent days. If there is continuous cooling weather, the drug should not be used.

The dosage of herbicide in wheat must be strictly in accordance with the standard dosage, otherwise it will be harmful if it is too much, and it will not die if it is too little.

Spraying should be uniform, and re-spraying or missed spraying is not allowed.

In fact, there is a lot of knowledge about wheat herbicides, and an article can't be finished, such as how to choose wheat herbicides. What if there is drug damage? It's been there for days. The grass is not dead. What happened? Wait a minute.