How to improve the sweetness of grapefruit

Grapefruit is a very common fruit in our daily life, especially in autumn and winter, the market demand for grapefruit will be greater. So now there are a lot of people growing grapefruit. However, when most people grow grapefruit, they often encounter a lot of problems that affect the quality of grapefruit. Among them, the low sweetness of grapefruit is a kind of. So how can we improve the sweetness of grapefruit? Let's take a look at it with the editor.

1. Reasonable pruning

Reasonable pruning is the key measure to improve the sweetness of grapefruit. When we prune, we should control the number of pruning according to the age of the grapefruit tree. If it is a young tree, it should be pruned twice in summer and winter respectively. For fruiting pomelo trees, there should be an additional spring cut, which is usually in February. When pruning, we should pay attention to pruning the outer branches and pruning the branches that are too dense. Control the crown of pomelo tree and promote the emergence of inner branches. For inner-bore branches, excess branches, withered branches and branches of diseases and insect pests should be cut off. For trees that do not blossom or have few flowers, ring peeling is the main method. Improve the permeability of trees, enhance the photosynthetic capacity of trees, so as to increase the sugar content of grapefruit.

2. Enlarging holes and improving soil

Improving the planting soil environment of pomelo is the key measure to ensure early fruiting time, high quality and high yield of pomelo. Generally speaking, the work of expanding holes and improving soil should be started in the second year after grapefruit planting, preferably in the third year. When expanding holes to improve soil, we should first dig ditches about 65cm on both sides symmetrically at the dripping line of the crown. Then fill in enough green manure and burning soil, and then cooperate with the right amount of medium and trace elements. Apply it layer by layer, and then compact it to improve the soil.

3. Rational fertilization

A professional data survey shows that there is a direct relationship between the content of calcium in soil and the acid content of grapefruit. Calcium can not only neutralize the organic acids you give in grapefruit, but also increase the weight of a single fruit. On the other hand, potassium fertilizer can enhance the photosynthesis of grapefruit, increase the content of carbohydrates, and improve the sweetness of grapefruit. Therefore, we should pay attention to the application of calcium and potassium fertilizer. Fertilization is usually based on ditch application, and it is usually applied about four times a year. We should also pay attention to control the application of chemical fertilizer, mainly organic fertilizer, and improve the quality of fruit.

4. Fruit thinning and bagging

Reasonable fruit thinning is also a main measure to improve the sweetness of grapefruit. When we plant grapefruit trees into the fruiting period, we should pay attention to the timely removal of malformed fruits, small fruits and fruits harmed by diseases and insect pests. Keep the leaf-fruit ratio on the pomelo tree at about 200 per cent. After fruit thinning and fruit setting, bagging can effectively improve the sweetness of grapefruit when the young fruit grows to about 150g and the transverse diameter is about 5cm.

The above is a brief introduction to how to improve the sweetness of grapefruit. That's all for today's introduction. This article is for reference only. I hope it can be helpful to everyone.