In the early winter season, greenhouses have also entered a low-temperature and high-humidity environment. Watering and fertilizing in agricultural management has gradually become a headache for vegetable farmers. The weather is changeable. Once a watering problem occurs, it is easy to cause multiple problems. . 1, take care not to water by day Many vegetable farmers are accustomed to watering by day, but watering by the day is very unreasonable, especially after entering the winter, watering by day is the main cause of poor root development and yellowing of plant leaves. Because the ground temperature in winter is low, watering by water is often relatively large. It is easy to cause a low ground temperature for a long time, and the roots are stunted, and it is easy to cause the occurrence of cracking, splitting and other symptoms. 2, pay attention to maintain soil moisture balance If the soil is too dry or too wet, it can easily affect the plant growth. Therefore, it is critical to maintain the balance of water in the soil. In winter, watering must be determined according to the soil moisture content, because when the soil moisture content is lower than 40%, it is not conducive to the absorption of nutrients, and when the water content exceeds 80%, it easily leads to the deterioration of soil permeability, and the lack of oxygen in the root system. , causing roots. 3, pay attention to see the growth of plants and environmental changes Some vegetable farmers are afraid that the plants prosperously prefer water control, but if they control water excessively, they will lead to curling and wilting of the plant leaves. Therefore, the watering should be based on the growth status of the plants, especially the observation of blade angle, flexibility and flatness. The flexibility of stems and vines, to avoid over- or under-watering. In addition, when watering, it depends on the growing environment of the plants, ie the weather and the ground temperature. Winter rainy days are not watered, and watering is usually done on a sunny day. Because of rain and snow, the ground temperature often does not rise in a short time. If watering, it can easily lead to root damage. At the same time, when watering in winter, it is also necessary to pay attention to the ground temperature. Watering in sunny days at noon is easy to blow up the roots. Therefore, it is often selected in the morning. When the ground temperature is maintained at about 15° C., the temperature difference between the ground temperature and the water temperature is small, and the impact on the root system will also be affected. Relatively weaker. Http://Content/5dfb1344-04d0-4969-a6d9-e1f5eb2d2638?cType=2 Foot Spa Massager,Bath Foot Massager Machine,Foot Spa Bath,Bath Foot Massager With Bubble Huaian Mimir Electric Appliance Co., LTD , https://www.mmfootbath.com