When is the best pruning time for Shatangju trees?
Pruning of Shatangju should be carried out between small summer and big summer, and it is generally best to put autumn shoots 10- 15 days before the leaves are released. Cutting new shoots early is easy to compete with fruits for nutrients, leading to fruit drop, and cutting autumn shoots late is not enough to grow, which is easy to be frostbitten.
Of course, sugar oranges can be pruned in 1 1 month. This is the biggest and most important pruning in a year.
Because it is usually picked at the beginning of 10 (1 1), but in the middle and late stage, the plants of Syzygium pratense are gradually in semi-dormancy or dormant state, and their physiological activities are weakened a lot, which is very suitable for pruning.
Significance and function of sugar orange pruning
Pruning Shatangju in autumn is of positive significance in orange orchard management. It not only plays a role in preventing pests and diseases, but also plays a role in lighting and ventilation, plant modeling and nutrient storage.
1. Disease prevention and insect control
Shatangju is an evergreen tree growing in the south. Because of its thick stems and branches, lush foliage and warm and humid climate in the south, its branches and leaves often become breeding grounds for germs and hiding places for pests.
Therefore, throughout his life, he will inevitably be "repaired".
This autumn pruning of Shatangju is the biggest pruning in a year after the orange fruit is picked. After pruning, it will go through a long winter. Because of this pruning, many pests and diseases often freeze to death.
Undoubtedly, it has a positive preventive effect on pests and diseases in the coming year.
Step 2: Plastic surgery
Autumn pruning of Shatangju is a pruning for beautifying trees. It has gone through the arduous process of growth, flowering, fruiting and fruit picking.
Once the fruit on the tree disappears, the orange branches become much easier, and the branches bent by the fruit branches scatter and become incoherent. There will be many broken branches after picking, which will make the tree look messy.
Therefore, people often beautify the tree shape through the "big repair" of autumn pruning, so that the orange orchard is neat and orderly.
Step 3: Lighting
The autumn pruning of Shatangju is also for the pruning of lighting and ventilation. Shatangju is an evergreen tree with vigorous branches and dark green all the year round.
Therefore, with pruning in autumn, people often cut off dense branches and overlapping branches, so that they can receive light evenly and be ventilated, so as to maintain a good rest state for the coming year.
Storage and feeding
Pruning in autumn is also beneficial to storing nutrients. Shatangju doesn't consume too much nutrition after fruit picking, and this kind of re-cutting after autumn will undoubtedly minimize the nutrition consumption, which is naturally beneficial to nutrition storage.