A farmer explained that the winter irrigation should be timely, "only frozen, winter irrigation late; night, day and night, winter irrigation is good; not frozen, winter irrigation early." The recent temperature is significantly higher than in previous years, although the snow has passed, the soil is still In addition, the night was frozen and the farmer was reminded that the wheat was not poured into the winter water because of the winter irrigation. The role of pouring winter water: 1. Avoid dry-freezing: Soil moisture content increases after winter irrigation, heat capacity and thermal conductivity correspondingly increase, the temperature difference between day and night decreases, near-surface temperature swings moderate, which can reduce the dry freeze hazards of wheat. 2. Water Storage: After winter irrigation, water will exist in the soil in a crystalline state and will not be lost due to factors such as gravity, and the mineral nutrients dissolved in the soil solution will not leach and can be well preserved. In the soil, it functions as a water store. 3. Prevention of spring drought: Longer winter, less snowfall, and a long period of general drought in spring, winter irrigation can not only meet the winter physiological activities of wheat, but also provide sufficient water for spring wheat to return to green as soon as possible. 4. Improve the soil structure: After three seasons of soil cultivation, especially unreasonable soil cultivation, the soil will be hardened, the tillage layer will be hard, and the massive structure will increase; after the winter irrigation, due to the role of soil freeze-thaw alternation, It will make the soil structure agglomerate and the soil's rhizosphere environment will be improved. Premature winter wheat water easily lead to excessive growth of wheat seedlings, not frost resistance; watering too late, the soil freezes, unfavorable to the development of wheat roots and safe wintering. Transparent Wound Dressings,Clear Wound Dressing,Waterproof Large Transparent Dressing,Transparent Dressing Wound Henan Maidingkang Medical Technology Co.,Ltd , https://www.mdkmedical.com