Early spring wheat drought prevention tips

Wheat plants have strong water-holding capacity in the winter and can tolerate a considerable degree of drought. However, if the dry soil layer is thick after the early spring sprouts, if the water returned to the pulp does not reach the tillering section, the wheat seedlings may not be able to display the leaves in time for photosynthesis, and the respiratory depletion will lead to death. In the northern wheat region of China, after the spring, the general wind is less and less rainy. As the temperature gradually rises, the soil begins to thaw, the water evaporates, and it is easy to form a continuous drought in winter and spring, causing the seedlings to die and die. In production, the following drought prevention measures can be taken:

The suppression of soils that have undergone freezing and thawing often leads to a lifting phenomenon, which exposes the wheat tillering festival. In the early spring, repression can make the surface layer of soil that has been frozen and thawed loose in winter and make the soil close to the root system, which will help the root system absorb water, reduce water evaporation, and prevent the wheat from freezing in the early spring.

When the soil is frozen and defrosted, the depth of defrosting is 2 cm, and there is still ice in the lower layer, the depressing area (commonly known as the “Lingling Land”) is used to form a layer of dry soil on the surface, which can cut off the operation of the capillary water. It helps maintain soil moisture and has multiple effects such as warming and weeding.

Watering In fields where water is poured, timely watering is an effective measure to lift the drought. But the watering must be due to seedling system, late spring wheat to promote the main spring in early spring should not be water, so as not to reduce the temperature affect the growth; strong spring wheat field to promote control combined, poor soil fertility or general land can get up During watering, wheat fields with relatively good soil fertility and relatively large populations do not advocate pouring water. However, for wheat fields with no guarantee of water sources, watering can be conducted as early as possible. Prolonged wheat springs are mainly controlled and have poor soil fertility. Plots can be watered during the period of getting up.

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