Pruning method capable of promoting formation of blueberry flower buds and improving yield of blueberries

Abstract

The invention provides a pruning method capable of promoting formation of blueberry flower buds and improving the yield of blueberries. The pruning method includes the following steps: S1, pruning blueberry branches with few differentiation of flower buds, a diameter within 3 mm and a length within 12 cm; S2, picking fruits, performing pruning from the end of June to the beginning of July in a pruning mode that 3-5 buds on the top of each annual spring shoot are cut off, and spraying a 500-fold diluent of PBO with a concentration of 2000 mg / L to incisions; and S3, growing secondary branches atdownward positions 2-3 leaf buds away from the incisions three months later after pruning, wherein a plurality of flower buds are formed on the tops of the secondary branches. The pruning method is applied to blueberry plants with few differentiation of flower buds, and the thin branches with a weak tree trend are pruned, so that the secondary branches grow out from the branches, and a large number of flower buds are formed on the tops of the secondary branches; and finally the yield of blueberries can be improved, no decline of the quality of the blueberries can be ensured, and the problem of southern blueberry cultivation is solved well.

Description

technical field [0001] The invention belongs to the technical field of blueberry cultivation, and in particular relates to a pruning method for promoting the formation of blueberry flower buds and improving yield. Background technique [0002] Blueberry (Blueberry) belongs to Ericaceae (Ericaceae) Vaccinium (Vaccinium) plant, is a perennial shrub fruit tree, known as the third generation of golden fruit internationally, and the cultivation research in China was started by Jilin Agricultural University in the 1970s At the end of the 1990s, Liaoning, Shandong, Heilongjiang, Beijing, Jiangsu, Zhejiang, Sichuan and other places successively introduced and tried planting in 2000. Since 2009, the cultivation area has gradually expanded to more than a dozen provinces and cities across the country. [0003] Blueberries need to be trimmed and pruned. If they are not trimmed and trimmed, the branches will be too dense, the canopy will be closed, there will be no ventilation and light ...

AI Technical Summary

Problems solved by technology

Because blueberries are shrubs, there are few fruit tree pruning techniques that can be used for reference, and the blueberry industry in my country started late, and the suitable domestic blueberry pruning techniques are immature. The current pruning techniques often cause blueberry trees to produce large fruit and small fruit, and the fruit quality is poor

In the Chinese patent CN 201410790617.8, the method of shaping and pruning blueberries in the north discloses a method of shaping and pruning blueberries cultivated in the open field, cold shed, and solar greenhouse. For the blueberries that have been planted in the open field for many years, pruning from the growing season to before overwintering requires the use of stubble pruning method that would result in a 20-30% reduction in production

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