Greenhouse Tea Cultivation Management Techniques
First, the choice of the garden: choose a fertile soil, adequate water supply, soil permeability is good flat or gentle slope to build the park. It is best to use the open terrain on the north for the mountains and the south to help block the cold winds in winter and avoid windbreaks on the plains of tea gardens. Windbreaks should be set up on the north side of the tea garden. Second, the age of the tree: The main tea plantation is strong, its strong tree vigor, strong growth, high tea yield, tea garden coverage of more than 85%. Third, the greenhouse mode: the main winter-type greenhouse, the general shed width of 13 meters or so, the length should not exceed 50 meters, in order to facilitate management. Shed film should be made of high quality non-drip film. Fourth, greenhouse management: cover time in early November. Covered shed of tea fertilizer, mainly high-quality farmyard fertilizer. The amount of fertilizer applied is 2 times that of open-air tea gardens, about 6,000 kg per 1/5 hectare (1 mu), and after the combination of watering, the grasshoppers will be plucked, and then grass will be applied between the rows. The thickness of the grass is about 20 cm, and the amount of soil is appropriate. The temperature in the booth is not lower than 5°C at night, 20-25°C during the day, and the relative humidity is about 70%. 5. Pruning: Tea in greenhouses Qiufeng should be lightly mined to store more nutrients, which will help improve spring tea production. Autumn tea should be trimmed after harvesting. At the same time, pruning time should be postponed from the harvest of the spring tea until the end of the spring tea harvest. Generally, the deep pruning is performed once every 2 years or so, and the pruning is performed once every 7 years, and the height of the tree is controlled to be about 80 cm. 6. Harvesting: Generally, harvesting begins when the tea bud grows to the standard for frying.