Tea gardens covering plastic sheds are an important cultivation and management technology for famous green tea production. Construction of plastic greenhouses: (1) Garden and species selection. Garden conditions, species types, and the growth of tea plants all have a direct impact on the construction and cultivation of plastic greenhouses. In order to facilitate the construction of greenhouses and achieve certain coverage and cultivation effects, plastic greenhouse tea gardens require flat or low south, sheltered from the sun, close to water sources, convenient irrigation and drainage, fertile soil, standardized planting, good growth, young trees, and good canopy cover. Tea varieties should be selected from early buds with high yield and good tea quality, such as Longjing 43, Ubujao, Fuding white tea, Yingshuang, etc., in order to achieve early results. (2) The choice of building materials. Film is one of the most important building materials for plastic greenhouses. It requires not only good light transmission, heat preservation, tensile strength, anti-aging, etc., but also requires no dripping. At present, there are two types of agricultural non-drip films, PE plastic film with polyethylene as the main raw material and PVC plastic film with PVC as the main raw material. Each has its own advantages and disadvantages. Most of the greenhouse tea gardens are now covered with PVC of 0.05 to 0.1 mm, which requires about 100 kg per mu. The scaffolds of plastic greenhouses in tea gardens are mainly composed of two parts, columns and scaffolds. Long-lasting fixed-type greenhouses, pillars with a length of 3 meters, crude 10 centimeters and 10 centimeters of cement pillars, about 80 to 120 per acre; arches with a diameter of 1.5 to 2.5 cm round steel bar (length by the span of the greenhouse), solid Durable, less shading, but large investment. For a relatively long-lasting fixed greenhouse, the column uses a cement column, and the arch is made of bamboo, and the bamboo material per mu is about 600 to 1000 kg. The bamboo needs to be changed every year or every other year. Simple greenhouses, columns with a length of 3.0 to 3.5 meters, 10 centimeters thick wood piles, arch with bamboo. (3) Set up construction. The main function of the greenhouse is insulation, frost protection and frost protection. Therefore, the time for building the cover film depends on the local climatic conditions. In the broad area of ​​the middle and lower reaches of the Yangtze River, it is appropriate from the late October to the end of December. The cover film is usually built before the onset of frost, and it can be removed by the middle of April in the second year. The construction procedure of the greenhouse is roughly as follows: first, the plastic film is spliced ​​and ironed with electric iron according to the design volume of the greenhouse, and then in the selected tea plantation, the vertical distance is l-1.5 meters and the horizontal distance is 5 to 7 meters, and the pillar is partially high. 2 to 2.5 meters; and then erected on the column arch, vertical and horizontal reinforcement with bamboo or bamboo; fixed after the stent is covered with a hot film, taut, fixed on the pressure rod, surrounded by mud pressure dead seal. When covering the film, it is necessary to pay attention to a long, openable air passage at 1.2 meters from the ground on both sides of the greenhouse so that the temperature and humidity can be adjusted later. Both ends have access doors. According to practice, the height of the shed is about 3 meters in height, about 1.6 meters high on both sides, and the ceiling is shaped. The span is 5 to 8 meters (about 3 to 5 tea lines), and the length of the shed is 40 to 60 meters, which is a The greenhouse area is suitable for about 0.5 mu.