The technology of promoting flowers and keeping fruit of Shatang orange has been puzzling the majority of orange farmers. At present, it has become a trend to solve this problem by girdling, but many orange farmers ignore the field management before and after girdling, which has caused great harm to the normal growth and development of trees, shortened the life span of fruits and made the yield stagnate, so they must be cautious when using girdling technology.

First, we must strengthen the management of water and fertilizer.

The precondition of ring cutting, shoot control and flower promotion is good fertilizer and water management and vigorous plant growth. If you circumcise an orange tree with particularly weak tree potential, it is easy for the plant to shed its leaves in case of drought or low temperature. If defoliation is serious, it will affect the photosynthetic efficiency of functional leaves, thus affecting the quality and fruit setting rate of flowers or flowers. Therefore, the water and fertilizer management of Shatangju in the whole growing season must keep up and strengthen the tree potential.

Second, the correct use of ring cutting technology

Shatangju often grows vigorously in winter. Using traditional tough measures such as girdling, pruning and root cutting to restrain excessive growth of branches and protect flowers and fruits will do great harm to tree vigor and easily shorten tree age. The correct way is to cut open the smooth trunk of Shatangju with a blunt blade from June165438+/kloc-0 to early February, and then apply foliar fertilizer to activate the negative ions in the tree, so as to transform the vegetative growth of Shatangju into reproductive growth, control the crazy growth of branches, and make the flower genes and flower ovaries strong. According to the growth status of the Shatangju, the flourishing trees are used once every 10- 15 days, and the young trees are used once every 25-30 days.

Third, spraying foliar fertilizer to increase the nutrition of trees.

For the leaves that turn yellow or fall off abnormally after girdling, it is necessary to properly spray water on the tree tray, spray foliar fertilizer mainly containing phosphorus and potassium on the crown, such as Banida Bika potassium dihydrogen phosphate or foliar fertilizer, and add "new high-fat film" to increase the nutrients of the tree and improve the stress resistance of the plant. The effect of "new high-fat film" is better than that of ordinary high-fat film, and the effect can be improved by 4-5 times. Non-toxic and pollution-free, stable physical and chemical properties. It is not a chemical fertilizer or a pesticide, but a surface protectant for plant protection.

Fourth, spraying drugs to promote flowers and protect fruits.

Spraying "Guagua Zhuangdiling" before flowering, young fruit stage and fruit expansion stage of Shatangju can increase nutrient transportation, protect flowers and fruits, and enhance tree vigor. Spraying "Guaguozhuangdiling" can greatly increase the transport of nutrients, improve the fruit swelling vitality and increase the color, which is efficient, safe and has no side effects.

In the whole growth process of Shatangju, it is necessary to strengthen field management, rationally apply fertilizers, timely spray pesticides, increase nutrition, enhance tree vigor, and adopt scientific ring cutting technology to protect flowers and fruits, improve fruit quality and increase the income of orange farmers.

Author: 8027bc620b 10

Source: Jane books