How to prevent tomato green

Is there any way to prevent the green skin of tomato? Please guide the introduction of tomato green skin fruit is a kind of gluten rotten fruit, there are many causes of tomato green skin fruit, the most important of which is the imbalance of fertilization, high nitrogen and low potassium, excessive application of nitrogen fertilizer, relatively low potassium is the main cause of tomato green fruit. After the tomato enters the peak fruiting period, it is easy to cause green fruit when it encounters bad weather (low temperature, weak light) or unreasonable fertilization (partial application of nitrogen fertilizer). The following measures can be taken to prevent it: increasing the application of organic fertilizer, adopting the technology of formula fertilization, and not using more ammonium fertilizer, so as to adjust the proportion of nitrogen, phosphorus and potassium in soil and promote the absorption and utilization of potassium by plants. This is the most important measure to prevent the green fruit of tomato. Prolong the exposure time of vegetables. When the fruit enters the color conversion period, the lower leaves and nearby leaves of the color-changing ear should be removed, and the occurrence of green fruit can be reduced by increasing light. Strengthen the root and raise the root, enhance the plant resistance. Foliar fertilizer containing a variety of elements (boron, calcium, magnesium, iron, zinc) is used, among which amino acid type is suitable to promote black and green leaves, enhance photosynthesis, increase the absorption of boron and calcium elements, and reduce green skin and fruit cracking. In order to strictly control the temperature, the daytime temperature should be controlled at 25 ℃ ~ 30 ℃, the night temperature should be kept at 14 ℃ ~ 16 ℃, and the temperature difference between day and night should not exceed 15 ℃. Balance the number of fruit-setting plants, do not set too much fruit or set fruit too low. The concentration of flower hormone should not be too high, and fertilizer should be replenished in time after using some anthers. For the greenhouse where green fruits have occurred, high potassium foliar fertilizer and chitin can be sprayed to relieve symptoms. Click to get more tomato planting techniques click to get more vegetable planting techniques