How does the greenhouse vegetable increase in temperature?
The temperature has dropped again! This is a big challenge for our friends to grow vegetables. Low temperature, high humidity, easy to cause a variety of disease outbreaks of vegetables, poor nutrient absorption, slow growth, seriously affecting the yield and income of farmers planting vegetable greenhouses. So, in the face of the impact of low temperature on greenhouse vegetable cultivation, what should we do to make greenhouse vegetable production increase? One is to fight the leaves in time. Tomatoes, cucumbers and other crops, after the fruit is set, the lower leaves are removed in time, which can increase the temperature of the soil, and the lower leaves compete with the crops, which is not conducive to the growth of tomatoes and cucumbers. Pay attention to the tomato to fight the leaves to clean, cucumber, zucchini only to remove the leaves, you can keep the veins. Second, pay attention to the wind shed skills. In the morning, open the greenhouse curtain and pull the air outlet one foot wide. While walking, pull back, go back to the starting point, and turn off the air outlet while walking. When the temperature in the shed exceeds 20 degrees, the air is released normally. This will reduce the temperature of the greenhouse by 3 degrees, but it can remove the moisture in the shed. Preventing the occurrence of diseases and increasing the light transmittance is conducive to the temperature increase after the sun. On a cloudy day, repeat this operation once or twice at noon, no longer letting go of the wind. 3. Appropriate use of warming measures. For example, use a warming block to clean the dust on the shed film. The shed film that encounters dripping water can be used with two or two soy noodles, a little washing powder and a sprayer water, sprayed onto the shed film in the shed, which can quickly increase the transparency of the shed film. Four appropriate artificial supplements of sugar. You can use 50 grams of glucose powder, 25 grams of urea, and a bucket of water to spray, you can quickly add sugar to make up for the weaker photosynthesis defects. It is especially noticeable on cucumber and can effectively prevent the occurrence of downy mildew. Tomatoes can be sprayed one day before the flowering, which can increase the rate of tomatoes. Five pay attention to the choice of fertilizer for greenhouses at low temperatures. Try to choose roots, roots, and fertilizers that increase ground temperature. Such as amino acids, fish protein, alginic acid, humic acid water soluble fertilizer. Try not to use only a large amount of elemental water soluble fertilizer of NPK. The low temperature in winter often brings some problems and influences to planting vegetable greenhouses. However, in winter, when the price of vegetables in greenhouses is relatively good, we should pay special attention to the cultivation management of vegetable greenhouses and the use of fertilizers to fight for the high yield of vegetables. Harvest. Tetanus Vaccine,Hepatitis B Vaccine For Adults,Tetanus Booster,Td Vaccine FOSHAN PHARMA CO., LTD. , https://www.foshanpharma.com
