Fertilization requires the combination of base fertilizer and topdressing, organic fertilizer and inorganic fertilizer, roots and leaves. Sprinkling irrigation in tea garden in dry and hot season is beneficial to improve microclimate and has a significant effect on improving tea yield and quality. Spreading grass or mulching with plastic film in tea garden is an effective measure to prevent soil erosion and improve soil fertility. Crown management includes pruning, picking, etc. Generally, 2 ~ 4 times of plastic pruning are carried out in infancy. The height of the first pruning is about 15 cm from the ground, and it will increase 15 cm every time, so as to cultivate dry branches and control the crown height. The planting height of a single tree is controlled at 70 ~ 90cm, and the height of dwarf close planting is controlled at 55 ~ 65cm.
After adulthood, light pruning with a depth of about 2 ~ 3 cm is carried out on the crown surface every 1 ~ 2 years, and the green stems and leaflets on the surface are cut off, so that the new shoots grow vigorously and are easy to pick. Re-pruning every 20 years in old age and leveling at 30 ~ 40 cm from the ground can make the crown renew and rejuvenate. Prune the old tea tree about 10 cm from the ground to completely renew the crown. The height of arbor coffee table is about 20 cm; Picking is also an important means to cultivate crown, which should be closely coordinated with pruning. After pruning, re-cutting or table mowing, tea trees should pick less leaves and leave more leaves to make the crown grow rapidly; Light-cut ones can be harvested more and kept less, leaving only one leaf or one leaf, so that the yield will continue to increase. Pest control. Common pests and diseases include anthracnose, tea caterpillar, tea geometrid, tea weevil, green leafhopper with false eyes, tea orange gall mite and so on.