2, between dense and sparse. For multiple plants, keep the strong and high-yield main plant and dig out all the others. At the same time, select excellent varieties to replant in sparse places. The reasonable density per mu is about 60 plants.
3. Dig deep and fill shallow. Deep ploughing in winter and shallow ploughing in summer combined with weeding. Its function is to remove weeds, improve soil, enhance drought resistance, improve forest environment and reduce pests and diseases.
4. Store water to keep soil and fertilizer. The forest land with large slope should be made into trapezoid as far as possible, or the bamboo joint ditch with the width of 1 ~ 1.5m should be excavated horizontally.
5, pruning and shaping. Pruning and shaping to improve ventilation and light transmission conditions of tea forest. For ancient trees, dense branches, cross branches, overlapping branches, weak branches, sick and disabled branches, etc. Should be cut off, and the cut branches of pests and diseases should be burned. The above work of cultivating high-yield tree structure should be carried out in winter.
6. Rational fertilization. One is interplanting green manure, the other is returning dead tea shells to the mountains, and the third is topdressing nitrogen and phosphorus fertilizers. Fertilization method: apply soil mixed fertilizer in winter, about 30 kg per plant; Nitrogen and phosphorus-based compound fertilizer was applied in spring, each plant 1 ~ 2kg.
7, pest control. Adhere to prevention, combined with tree management, and regularly spray bordeaux mixture or carbendazim and other fungicides from April to July. If it is damaged by longicorn beetles and weevils, it should be sprayed with 90% trichlorfon crystal 1000 times.
8, timely picking. The seeds of Camellia oleifera in Fujian are mostly beginning of winter seeds, which are picked after beginning of winter 1 week (about165438+1mid-October). At this time, 5% of the tea fruits on the tree are slightly cracked and easy to peel, and the seeds are dark and fully mature.