A detailed explanation of the key points of Camellia oleifera cultivation techniques, easy to understand at a glance

Camellia oleifera is a common economic tree in our country, and the fruit it bears can be used to press oil. It is planted in many regions, so what are the key points of Camellia oleifera cultivation techniques?

1. Forest land clearing: carried out once a year, mainly to remove miscellaneous shrubs, basal branches, and old, residual, diseased, and pest-infested plants from the forest, and burn them. In addition, spray the whole orchard with Husu Jiangjun for disinfection and sterilization.

2. Thinning where dense and filling in where sparse: for clumps with multiple plants per stump, keep the main robust and high-yielding plants and dig out all the rest; at the same time, in sparse areas, select fine varieties for replanting. The reasonable density is about 60 plants per mu.

3. Deep digging and shallow cultivation: deep cultivation in winter, and in summer combine weeding with shallow cultivation and mounding soil around the stumps. Its role is to remove weeds, improve the soil, enhance drought resistance, improve the forest land environment, and reduce pests and diseases.

4. Store water, conserve soil, and preserve fertilizer: for forest land with steep slopes, shape it into terraces as much as possible, or dig horizontal bamboo-joint ditches 1-1.5 m wide in strips.

5. Pruning and shaping: improve the ventilation and light penetration conditions of the tea forest through pruning and shaping. For old trees, cut off excessively dense branches, crossing branches, overlapping branches, thin and weak branches, and diseased, disabled, and pest-infested branches; the pruned diseased and pest-infested branches must be burned. Secondly, apply healing and anti-corrosion film to the pruning cuts to prevent nutrient loss and water consumption.

6. Rational fertilization: first, interplant green manure; second, return tea seed cake and tea seed husks to the mountain; third, apply additional nitrogen and phosphorus fertilizer. Fertilization method: apply farmyard manure in winter, about 30 kg per plant; apply compound fertilizer mainly of nitrogen and phosphorus in spring, 1-2 kg per plant.

7. Pest and disease control: adhere to prevention first, and in combination with tree body management, regularly spray fungicides such as Bordeaux mixture or carbendazim from April to July. If harmed by longhorn beetles or weevils, use a 1000-fold dilution of 90% trichlorfon crystal for spraying and killing.

8. Timely harvesting: it begins to gradually mature around October, and harvesting is carried out around Cold Dew and Frost's Descent. Harvesting tea seeds and picking fruit means picking fresh fruit directly from the tree when the fruit is ripe, then processing them in a centralized way to extract the seeds. After harvesting Camellia oleifera, mix in a small amount of lime, pile and ferment on a soil flat for 3-5 days to complete the oil after-ripening process, then spread out to dry and thresh the seeds. After air-drying and sun-drying, they are used for oil pressing.