When is the first watering time to water the wheat in time after it turns green?

Abstract: what should we pay attention to when the wheat is watered for the first time after turning green?

This problem seems a little early now, but because the autumn harvest season is coming soon, wheat will also be planted after a bumper corn harvest. Watering wheat back to green is also a major event. Every year my family's wheat is watered in turn in the village, and some of them are watered only in the middle of the night.

When will the wheat turn green?

The time of wheat turning green varies from region to region, which is mainly related to the local climate. Wheat in the south is generally earlier, while that in the north is slightly later. It usually enters the green period of wheat from the beginning of February to the end of March every year. At this time, the heart leaves of wheat grow out about two centimeters.

How to water wheat in the period of returning to green?

Watering wheat in the green period is indeed an issue that needs attention, and the watering time of wheat needs to be grasped by farmers. If the wheat is watered too early during the period of wheat turning green, it is easy to increase the number of invalid tillers of wheat. In addition, the watering is too early and the temperature is unstable, especially in North China, which is very prone to the problem of late spring cold. for example, one of the major reasons for the reduction in wheat production this year is the influence of late spring cold. Early watering will cause a sudden drop in wheat field temperature, cause wheat freezing damage and hinder the growth of wheat. Therefore, the problem of watering wheat during the green period needs to be carefully grasped.

First of all, we need to consider the temperature problem, because although the temperature increases gradually during the spring wheat turning green, but the temperature difference between day and night is still relatively large, blind watering is easy to cause wheat freezing damage. Just need to wait a period of time for watering, it is best that the temperature is suitable for wheat growth, and the soil moisture is better, wheat ploughing and loosening soil has been completed, watering is being carried out at this time. What should be paid special attention to here is the northern region, because the cold in late spring is more common, so we should pay attention to the problem of weather change.

The second is the problem of soil moisture of wheat. The problem of soil moisture of wheat is also a problem that needs to be paid attention to when watering. Sometimes the soil moisture of wheat field is better, and the growth of wheat is also better. The green water of this kind of wheat field can be irrigated late. Or directly to the wheat stand up or jointing stage in watering.

However, the soil moisture in some wheat fields is not very good, the growth of wheat is not very good, wheat is not irrigated in winter, and the land condition is not very good. In this way, the wheat field needs to be watered in time. It is best to water the permafrost in the wheat field when the permafrost has melted and the soil temperature is stable above 5 degrees. If the wheat is not growing well when watering, you can consider topdressing properly.

In addition, if the terrain of wheat planting is relatively high, these areas can consider watering earlier. For those with relatively low-lying terrain, the soil condition is not, saline-alkali land, land with poor irrigation can be considered for watering later. If you encounter a cold snap during watering, you should stop watering immediately to prevent freezing damage to wheat. So in that case, watering wheat needs to be carried out according to local conditions. (III)

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