In the winter greenhouse, the tomatoes are disturbed due to the low temperature of the irrigation water and the balance between vegetative growth and reproductive growth. Plants prosperously consume a lot of nutrients, resulting in lack of nutrients and can not meet the physiological needs of fruit enlargement, all of which will cause some of the fruit hollow. Not only directly affected the yield of tomatoes, but also greatly reduced the yield and taste. Therefore, winter greenhouse tomato water temperature must be raised to 10 °C in advance, the water temperature is too low cold shrinkage of the roots, affecting root water absorption, timely spraying appropriate amount of "new high-fat film" moisturizing moisture protection flood control, but also waterproof loss, enhance plant The water absorption capacity of the root can meet the water supply during the expansion period and avoid the phenomenon of meat loss in the local fruit. In order to prevent the plant from being affected by freezing damage, water should be sprayed in a timely manner to “protect the tree generals†to prevent freezing and enhance the ability of tomatoes to engage in cold. In the fruit development period, when spraying foliar fertilizer, appropriate amounts of “Jiao Zhuang Ti Ling†capsules are added into the liquid formula to increase the efficiency of chemical fertilizers, and the vegetative growth of plants can be adjusted to reproductive growth and increase nutrient transport. Volume, increase the speed of fruit enlargement, preserve fruits and produce high quality tomatoes. The use period is generally the first time before flowering, young fruit, and fruit expansion. Fire Fighting Equipment,Wet Chemical Fire Extinguisher,Co2 Extinguisher,Home Fire Extinguisher DONGGUAN TENYU TECH.INC , https://www.tenyutech.com