How to effectively remedy wheat after it suffers freeze damage
If only the leaves of the wheat are frozen and the degree of freeze damage is relatively light, it can generally recover growth on its own after a period of time, and no special remedial measures need to be taken.
??? However, if the wheat seedlings are more severely frozen and dead seedlings appear, appropriate measures should be taken to promote the recovery of the wheat seedling population:
First, carry out timely compaction of the wheat field to firm the soil, close soil cracks, increase soil compactness, improve the soil's ability to preserve moisture, retain water, and conserve fertilizer, and form strong seedlings. After compaction of vigorous seedlings, the growth of the aboveground stems can be controlled, promoting the development of low-position tillers. This is especially true for vigorously growing seedlings that have jointed before winter; compaction can promote the transformation of vigorous seedlings into strong seedlings and increase their ability to resist adverse conditions.
Second, supplement nitrogen and phosphorus fertilizer or spray foliar fertilizer to promote tiller formation, improve root development, cultivate strong seedlings, and enhance resistance.
Third, carry out timely winter irrigation. According to the weather forecast, before a cold wave arrives, carry out field furrow irrigation with running water, just enough to moisten the soil, to raise the air temperature near the ground and near the leaf surface and form a microclimate, which can prevent or reduce freeze damage. Generally, irrigation 1-3 days before the temperature drops has the best effect, and irrigation for freeze prevention is most effective when choosing weather with a light breeze or calm wind. Lin Donghua