Fruit thinning time and method of navel orange

Navel orange has a large number of flowers and produces more fruit, but the plant can not supply too much nutrients for fruit growth and development, so it needs timely water and fruit thinning. So how to thinning the fruit of navel orange? What kind of fruit thinning is the most appropriate? Let's get to know it.

1. Fruit thinning effect

Fruit thinning can reduce deformed fruit, disease and insect fruit, over-dense fruit, too-large and too-small fruit, defective fruit and damaged fruit, and increase the proportion of primary fruit of navel orange. It can reduce the nutrient consumption of the tree, effectively supply sufficient nutrients for the fruit to absorb water, help to stabilize the fruit and improve the quality of navel orange fruit. It can make the tree hang an appropriate amount of fruit and extract a certain number of autumn shoots, and the autumn shoots are good fruiting mother branches in the second year, so as to overcome the phenomenon of navel orange fruit in the year.

2. Fruit thinning time

Navel orange fruit thinning can be carried out three times a year, the first time at the end of May, that is, after the second physiological fruit drop, some overdense fruits, sick and weak fruits, and effects will be removed; the second time, in the second expansion period, some abnormal fruits will be removed; the third time, about 15 days before fruit harvest, some lost fruits will be removed to increase the rate of good fruit and improve commodity value.

3. Fruit thinning method

The navel orange fruit thinning is generally carried out manually after stabilizing the fruit, and the artificial fruit thinning can be divided into two types: balanced fruit thinning of the whole plant and local fruit thinning. The balanced fruit thinning of the whole plant means that the excess fruit is removed according to the proportion of leaves and fruits, so that each branch group hangs the fruit evenly. On the other hand, the local fruit thinning is according to the roughly appropriate leaf-fruit ratio, all or only a small amount of fruit will be left in the local branches, while some branches will be completely removed or only a small number of fruits will be thinned, so that the branches will take turns setting fruit. Large fruit set, or small fruit, dense fruit more sparse, on the contrary, less sparse or not sparse, generally thinning about 10% of the total fruit.

The above is the introduction of navel orange thinning time and methods, hope to help you, want to know more related knowledge, please follow us.