Winter wheat is generally growing well, but overall development is not as robust as in previous years. To protect winter wheat from freezing and cold damage, several effective measures should be taken to ensure the crop survives the winter safely. In addition to planting cold-resistant varieties and sowing at the right time to help seedlings build up their cold tolerance, other practices can significantly improve survival rates.
First, soil compaction is an important technique. It should be carried out when the soil starts to freeze and there's a dry layer on the surface. This practice can raise the surface soil temperature by 0.5 to 1°C, especially in fields with loose topsoil, shallow planting, or drought conditions. The effect is more noticeable in windy areas. This process should continue until the ground thaws completely.
Second, applying a layer of fertilizer about 2 to 3 cm thick can increase the temperature around the tiller area by approximately 2°C. Using organic manure or soil amendments can also help retain heat and improve soil structure, which supports better plant health during the cold season.
Third, timely winter irrigation is essential. It helps stabilize soil temperature and prevents seedling death due to frost. Additionally, it helps settle the soil and crush debris, which reduces overwintering pests. Combining winter irrigation with fertilization creates favorable conditions for spring regrowth and root development. For saline-alkali fields, winter irrigation can also help reduce soil salinity. According to field surveys, compared to unirrigated fields, irrigated areas saw a 123,000-eared increase per mu, 6.7 more grains per spike, 1.3 grams heavier grain weight, and a 27% yield increase.
Fourth, spraying chlormequat on fields that were sown too early or are overgrown can control internode elongation, improve cold resistance, and reduce the risk of frost damage. Ongoing monitoring of pests and diseases is crucial. When thresholds are reached, prompt action must be taken to manage them effectively.
During the winter, field management must remain strict. Preventing livestock from entering the fields, blocking unauthorized paths, and ensuring proper protection are all critical steps to avoid damage. With careful attention, winter wheat can better withstand the cold and emerge strong in the spring.
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Input voltage: 8-36V
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