Key points of cultivation techniques of Camellia oleifera

Camellia oleifera is a common economic tree in China, the fruit can be used to fry oil, and it is being planted in many areas. What are the key points of Camellia oleifera cultivation techniques?

1. Woodland clearance: once a year, mainly to remove miscellaneous shrubs, legs, old, disabled, diseased and insect plants in the forest, and burn them. In addition, the general of spraying trees in the whole garden was disinfected and sterilized.

2. dense thinning: for more than one plant, keep the strong and high-yielding main plants, dig up the rest, and select excellent varieties to replant in sparse places. The reasonable density per mu is about 60 plants.

3. Deep digging and shallow reclamation: deep reclamation in winter, combined with weeding and shallow reclamation in summer. The function is to remove weeds, improve soil, enhance drought resistance, improve woodland environment and reduce diseases and insect pests.

4. Water storage, soil conservation and fertilizer conservation: woodlands with steep slopes should be trapezoidal as far as possible, or bamboo trenches with a width of 1 to 1.5 meters should be excavated horizontally.

5. Pruning and shaping: to improve the air and light permeability of tea forest by pruning and shaping. For the old tree, it is necessary to cut off dense branches, cross branches, overlapping branches, thin and weak branches, disease and disability, insect branches, and so on, and the cut off disease and insect branches should be burned. Secondly, the wound anti-corrosion film should be smeared on the trimming mouth to prevent nutrition loss and water consumption.

6. Rational fertilization: first, interplanting green manure, second, returning withered tea shell to the mountain, and third, topdressing nitrogen and phosphate fertilizer. Fertilization method: applying soil miscellaneous fertilizer in winter, about 30 kg per plant, and compound fertilizer mainly with nitrogen and phosphorus in spring, 1-2 kg per plant.

7. pest control: adhere to prevention, combined with tree management, regularly spray Bordeaux liquid or carbendazim and other fungicides from April to July. If harmed by longicorn beetles and weevil, 1000 times of trichlorfon crystal should be sprayed and killed.

8. Timely picking: it began to mature gradually around October, and Cold Dew picked it before and after Frosts Descent. Tea seed picking is when the fruit is ripe, the fresh fruit is picked directly from the tree, and then concentrated processing to produce seeds. After picking, Camellia oleifera was mixed with a small amount of lime and drenched on the soil floor for 3 days. The post-ripening process of oil and fat was completed, and then the seeds were dried. After drying and drying, it is used to extract oil.