Key points of Flower and Fruit stage Management of navel Orange

Navel orange is a kind of fruit which is rich in nutrients and has a large planting area in our country. When planting navel oranges, we need to do a good job of management according to the phenological phase of navel oranges. Especially in the blooming and fruiting period of navel orange, a reasonable management method is the key to ensure the normal flowering and fruiting of navel orange. So in the navel orange flower and fruit period, how should we manage it? The following editor brings you the key points of the management of the flower and fruit period of navel orange trees. Let's have a look!

I. florescence management

During the flowering period of navel orange trees, we should not only pay attention to the work of thinning flowers, but also not ignore the protection of flowers. As a matter of fact, there is no contradiction between the two. When thinning flowers, we had better do so as soon as possible. Because the earlier the flower thinning, the less nutrition the navel orange consumes, and the effect will be more obvious. When thinning flowers, we should pay attention to control the degree of flower thinning according to the tree situation and the amount of blossoms. After thinning the vegetative branches and fruiting branches, we should pay attention to protecting the flowers, not too much, so as to avoid affecting the results. Then we should also pay attention to do a good job of navel orange flowering pest control and fertilization management.

II. Management of fruit period

1. Fruit protection

In the navel orange fruit period, fruit protection work is very important. First of all, we should apply fertilizer to protect fruit. Reasonable application of nitrogen, phosphorus and potassium fertilizer can effectively improve the fruit setting rate of navel orange. Therefore, we should pay attention to spraying an appropriate amount of foliar fertilizer during the navel orange flower and fruit stage. The main fertilizers are boric acid and potassium dihydrogen phosphate, and the spraying times should be controlled according to the tree potential and flowering quantity of navel orange trees. Then during the florescence of navel orange, hormone can be sprayed properly to control the growth and storage of fruit, such as bolting, gibberellin and so on, which can effectively achieve the purpose of fruit preservation.

Finally, we should also pay attention to control the contradiction between the fruit and the shoot. During the second physiological fruit drop of navel orange trees, attention should be paid to the application of nitrogen fertilizer until the end of May. Prevent excessive application of nitrogen fertilizer and lead to summer shoot hair, resulting in excessive nutrition consumption. Then when the summer shoot is about June, you should pay attention to erasing the summer shoot every 5 days or so to protect the fruit. The growth of summer shoots can also be controlled by spraying solutions such as paclobutrazol.

2. Fruit thinning

Fruit thinning is the main measure to improve the fruit quality of navel orange and alleviate the phenomenon of navel orange size. Generally speaking, it should be carried out at the time of the second physiological fruit drop, and when fruit thinning, the main objects are deformed fruit, disease and insect fruit, damaged fruit and other bad fruit. The fruit thinning amount should be controlled according to the number of leaves on the tree, and the ratio of leaf to fruit should be controlled at about 60-80:1, which can ensure the good expansion of navel orange fruit and the highest yield. Usually, about 10% of the total fruit can be removed when thinning fruit. For a large amount of fruit, dense fruit, it should be more sparse appropriately, on the contrary, it should be less sparse or not sparse.

The above is a brief introduction to the main points of navel orange flower and fruit management. That's all for today's introduction. This article is for reference only. I hope it can help you all.