By changing or using some tips, we can improve the growth conditions of vegetables in the greenhouse and increase the yield and quality. One is the disinfection of garden soil: 3-5 grams of carbendazim or methane bromide is used to treat every square meter of bed soil to kill pathogens in the soil and prevent the occurrence of soil-borne diseases. The second is double coverage: covering the film in the greenhouse or adding a small arch. Covering the film can increase soil surface soil temperature by 2°C. Adding a small arch shed can keep the temperature in the growing environment of vegetables above 15°C. The third is to improve the way of film-membrane: replacing bamboo rafts and bamboo film with iron wire instead of bamboo rafts with plastic ropes, which can reduce shading and increase photosynthetic efficiency. The fourth is to improve the irrigation method: the use of drip irrigation or submerged irrigation under the film instead of the traditional flood irrigation, can reduce the relative humidity of the air within the shed by more than 10%. The fifth is the use of non-dropping film: the film will not condense water droplets, the photopic rate can reach more than 98%. If you use a general film, you can apply metronidazole on the film or wipe the water every day to eliminate water droplets on the film and enhance the light. Sixth, weeding wood ash: In the sheds, we often throw hay ash to prevent the occurrence of diseases such as damping-off and blight, and promote the healthy growth of vegetables. Seventh, carbon dioxide is added: burning methane in a greenhouse increases the temperature of the greenhouse and adds carbon dioxide gas. Eight is to set the light curtain. The light curtain is set on the back wall of the booth and the vertical floor is at the bottom, which can enhance the light in the low light area and increase the ground temperature by 2-3°C. Nine is the application of growth regulators: the correct use of exogenous plant growth hormone can promote plant growth and prevent flowering and fruit drop. The last tip is skillful application. The use of dust, smoke and other methods of application, there is no spray application of the law of the increase in humidity defects, but also simple and easy, and stable and lasting efficacy.