1 young forest pruning
Pruning of young forest is the foundation of Camellia oleifera plantation, which aims at pruning and shaping, cultivating good tree shape, expanding crown quickly, promoting early flowering, early fruiting and increasing yield. Cultivated Camellia oleifera has natural joy shape and natural round head shape.
1. 1 natural happy modeling
After afforestation of Camellia oleifera 1 ~ 2 years, the new buds sprouted at the top should be preserved as much as possible to form a trunk quickly, and all the side branches below 30cm on the trunk should be drained in time, and the side branches above 30cm should be properly drained to avoid dense side branches and bending of the trunk. When the trunk grows to 50cm, it can be shaped, that is, it is cut off at 40cm, 3 ~ 4 vigorous lateral branches are selected to cultivate into main branches, and 6 ~ 9 auxiliary main branches are reserved on each main branch as backbone branches, gradually forming a natural happy tree with short tree body, open crown and large crown.
1.2 natural round head modeling
On the trunk with a height of 30-40cm, select 3-4 main branches that grow evenly in all directions, and select 3-4 evenly staggered side branches on each main branch, and gradually expand to form a crown. Cut off short branches, inclined branches, staggered branches and elongated branches on the trunk to make the crown neat and round.
2 Forest pruning
Tree pruning is an important technical measure to promote high yield of Camellia oleifera, and its main purpose is to solve the contradiction between growth and fruiting. Adult Camellia oleifera likes light, flowers and fruits never leave branches all the year round, consuming a lot of nutrients; If not pruned in time, the crown will be closed and disordered, with dense branches and overlapping branches, insufficient illumination, easy aging, more dead branches in the crown, less fruits and lower yield. Practice has proved that the pruned Camellia oleifera forest has reasonable tree structure, concentrated nutrition, ventilation and light transmission, good tree shape, strong tree potential, thick branches, full buds, neat fruits, large fruiting bodies, less pests and diseases, reduced flower and fruit dropping rate, and improved fruit yield and oil yield. According to the experimental determination, the yield of planting camellia oleifera is about 30 years higher than that of not planting camellia oleifera.