Matters needing attention in winter irrigation of wheat

Winter irrigation of wheat is to irrigate the fields in winter, which can increase the water storage capacity of the soil, prevent drought in the following spring, raise the ground temperature and make it safe to survive the winter. this method is often used to plant winter wheat in the north, and it has an obvious effect on increasing production. But winter irrigation should also be reasonable, and the correct time and amount of water should be considered so as not to be counterproductive. Let's take a look at the matters needing attention for winter irrigation of wheat.

1. Soil moisture

Winter irrigation should pay attention to soil moisture, if the water content of the field is less than 70%, winter irrigation can be carried out at this time, but if it is higher than 70%, winter irrigation should not be carried out and the time of winter irrigation should be postponed. It can also strengthen the loosening of the soil and preserve the moisture maturity, increase the soil temperature, promote the root system of wheat to tie down, cultivate strong seedlings, and make it safe to survive the winter.

2. Temperature

In winter irrigation, we should also pay attention to the temperature. The suitable temperature for winter irrigation is about 30 degrees. If winter irrigation is too early, the temperature is higher, transpiration is greater, and the effect of winter irrigation is lost. Moreover, the temperature is suitable and the water is sufficient. It is very easy to cause the seedlings to grow exuberantly or excessively. However, winter irrigation is too late, the soil has been frozen, at this time, winter irrigation water can not seep, silting on the ground, resulting in seedlings frozen or suffocated to death. Therefore, the best winter irrigation time is before the cold spell and the air temperature is lower than 0 degrees, which can obviously increase the ground temperature and ensure the wheat seedlings to survive the winter safely.

3. The amount of irrigation should not be too large.

Although it can achieve the effect of increasing production and income, in winter irrigation, it is necessary to pay attention to the amount of irrigation should not be too much, resulting in stagnant water on the ground, then the phenomenon of late winter irrigation will occur, and the water freezes on the ground to form an ice crust, resulting in the freezing of aboveground plants and asphyxiation of roots due to hypoxia. It's best to die from tillers. Therefore, in winter irrigation, we must pay attention to the complete infiltration of water, there is no stagnant water on the ground, and the soil moisture is between 70% and 80%.

4. Increase the temperature by ploughing

After irrigation, it is necessary to plough and loosen the soil in time, which can not only break the soil consolidation, eliminate cracks, but also increase the soil permeability, increase the soil temperature by 1-2 degrees, and make the root system grow and develop better. It can also be applied with new high-fat film to preserve soil moisture and increase temperature, prevent water evaporation and soil consolidation, isolate the source of diseases and insect pests, and ensure that seedlings survive the winter safely.

The above is the introduction of wheat winter irrigation points for attention, hope to help you, want to know more related knowledge, please pay attention to us.