1, improper fertilization management:

Nowadays, many people seek convenience in fruit trees, especially without fertilization, fertilization or organic fertilizer. Fertilization is only suitable for nitrogen application, resulting in a single fertilizer. As we all know, the nutrients needed by fruit trees contain a lot of nitrogen, phosphorus and potassium, and trace elements need to be balanced in an all-round way. Without organic fertilizer, fruit trees are seriously short of trees, soil fertility declines and trees are malnourished. If we only pay attention to nitrogen fertilizer, fruit trees will grow. The same is true of pear trees. Once you have an apprentice, vegetative growth will inhibit reproductive growth and will not bloom during school age.

2, don't trim the branches:

If we plant a few pear trees in front of and behind the house, even if we don't prune them, they will still blossom and bear fruit at the right age, but it will only affect the quality and yield. However, if densely planted in the field, if not pruned, the branches of pear trees will stand upright, the trees will grow, the trees will be too high, the crown will be dense, and the sunlight will not reach Neijiang, so the branches of Neijiang will become fragile and the outer branches will grow. In this way, the flower bud differentiation of pear trees will be affected, and it will not bloom or bear fruit at a suitable age.

3, unfavorable climate and pests and diseases:

Other external factors mainly refer to bad weather, pests and diseases. Bad weather mainly includes cold, drought and flood. Pear trees are in the stage of flower bud differentiation, and this bad climate will affect flower bud differentiation and make it not bloom. Pests and diseases are very harmful, not only pear trees, but also any crops will not blossom and bear fruit.

Treatment method:

There is no flowering, so there is no problem of improper allocation of water varieties. If it blooms but doesn't bear fruit, it is necessary to reconsider the problems of fertilization and water tree formation. To sum up, the main reason why this pear tree doesn't bloom at school age is that it doesn't prune and fertilize, which leads to the growth of the pear tree, which affects the flower bud differentiation of the pear tree and makes the pear tree not bloom. For non-flowering pear trees, it is generally necessary to carry out tree shaping first, and then strengthen management in Chongqing's organic fertilizer certification, insect repellent treatment, weeding and other aspects, so as to gradually restore the pear tree to medium growth and achieve flowering and fruiting. The adjustment and transformation through pruning is not achieved overnight, but it takes a year or two to gradually transform vegetative growth into reproductive growth.

We can cut the ribbon in summer and take measures to control growth and ease it. Cutting in summer mainly includes pulling, supporting and supporting branches. , and through the dog horn to ease the momentum of trees, move down the middle and lower branches, properly remove the river fat birds and long branches in the middle and upper parts, master the appropriate height of trees, retract the weaker branches in the lower parts, and improve the angle of extending branches. Kangwangchi, a man with space on an upright branch, is a bud and a ring. If you take it off, there will be no room, which will ease the growth momentum at the upper end.

In the winter dormancy period, it can be contracted briefly according to the situation, and the vigorous branches on the upper part of the crown can be removed. Before the pear tree germinates, the weaker branches are carved in the lower part to restore the growth momentum of the weaker branches. In this way, through two years of gradual transformation, we can create a harvest tree and realize the transformation from vegetative growth to reproductive growth.

However, light shaping and pruning can not fundamentally solve the problem that pear trees do not bloom. To solve this problem fundamentally, we must work hard on fertilization. In other words, chemical fertilizer can't be applied easily, nitrogen fertilizer can't be applied only, and nitrogen, phosphorus and potassium should be adjusted. In addition, the full membership fee should be given in autumn, and the membership fee should be mainly organic fertilizer, so that the pear trees are balanced in nutrition. In addition to scientific and reasonable fertilization, measures such as water supply, grass growing in orchards and pest control should be taken. Through comprehensive management measures, tree vigor can be alleviated and pear trees can blossom and bear fruit.