Matters needing attention for wheat overwintering water

Wheat is a very common food crop in our daily life, which has a very large planting area in our country. When planting wheat, we need to do a good job of watering. Especially the overwintering water is the key to ensure the wheat to survive the winter safely. When watering the winter water, there are many places that need our attention. Then let's take a look at the points for attention of wheat overwintering water with Xiaobian.

1. Pay attention to the watering time

When watering wheat overwintering water, the first thing we should pay attention to is the watering time of wheat. In watering it is best to ensure that the night freezes during the day, usually before and after Lesser Snow's solar terms, and the average daily temperature should be kept at about 8 degrees until it is reduced to 5 degrees. The time of watering overwintering water should not be too early, because the temperature is relatively high and the water evaporates quickly. Therefore, it is impossible to keep the soil warm and preserve soil moisture. If the wheat field grows well, then the wheat seedlings will grow too much because of sufficient water and fertilizer. If it is serious, it will also jointing before winter, resulting in wheat freezing damage.

However, watering should not be too late, as opposed to watering too early. If it is too late, because the temperature is already relatively low, it is not easy for the water to seep into the soil after watering, resulting in stagnant water and easy freezing on the surface. As a result, the wheat seedlings were frozen and died after winter irrigation. When watering, should choose to be carried out within 9-16:00, control the amount of watering, to ensure that after watering, the water can be infiltrated in the same day. Do not flood, otherwise there will be stagnant water on the ground and form a frozen layer. After watering, it is necessary to do a good job of suppressing and hoeing to avoid cracking on the ground, ventilating and injuring the roots and killing the seedlings.

2. Pay attention to the seedlings of soil moisture

In order to ensure that wheat seedlings have appropriate soil water content during the rejuvenation period. Usually when the soil moisture is poor, that is, if the water content of the cultivated layer of sandy soil is less than 16% and that of loam is less than 18%, then winter irrigation should be done in time. If it exceeds the target, it means that the soil moisture is not bad, and the irrigation time can be delayed appropriately or not in winter. If there are few roots and leaves and insufficient tillering, especially in the late sowing wheat field, winter irrigation is not allowed. Then if the growth is prosperous, the soil moisture is good and the bottom fertilizer is sufficient, there is no need to irrigate the overwintering water.

3. Pay attention to the amount of water

The last thing we need to pay attention to is the amount of water. When carrying out winter irrigation, it should generally be carried out in the morning to ensure that all water can infiltrate into the soil before nightfall. Usually the amount of water per mu should be kept at about 50 cubic meters, and when watering, the amount of water must not be too large. If there is a lack of fertilizer in the wheat field, then topdressing should be combined with winter irrigation. After watering, hoe should be paddled in time to raise the ground temperature and ensure the wheat to survive the winter safely.

The above is a brief introduction to the matters needing attention in wheat overwintering water. That's all for today's introduction. This article is for reference only. Thank you for your reading and support.