Wheat winter irrigation principle
· The land with heavier drought, or the bottom is not enough, but the surface is not enough. It is necessary to hurry to water the water to promote the multi-rooted and rooted wheat.
·When the lyrical field is good, you can not control the winter water to control the spring.
· For weak seedlings with poor soil fertility, insufficient fertilization, small population, and poor growth, the wintering water can be poured early in the late November, combined with watering and topdressing. Generally, about 10 kg of urea is used to promote growth.
· Generally strong wheat field, the average daily temperature dropped to about 5 °C (from the end of November to the beginning of December). High temperature in early pouring will promote growth, and the ground will freeze and freeze the wheat seedlings too late. To finish the wintering water before the large freeze on the wheat field. The watering over the winter water should be carried out in the sunny morning, and the watering amount should not be too large, but it should be poured. It is better to infiltrate into the soil on the day after watering, and avoid flooding.
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