Detailed Explanation of Key Techniques for Flower Promotion and Fruit Retention in Honey Pomelo

Honey pomelo is refreshing and juicy, a fruit loved by many people, and it is grown in many regions. For fruit growers, what they want most is how to increase yield. In addition, honey pomelo has a large flower volume, and flower and fruit drop is also quite common during cultivation. Therefore, it is necessary to do a good job with flower promotion and fruit retention techniques. Now let's take a look at the flower promotion and fruit retention techniques for honey pomelo with the editor.

1. Strengthen fertilizer and water management

The pattern of occurrence is the key to high yield and quality of honey pomelo. According to experiments, rational formula fertilization can increase yield by more than 50% compared with random fertilization. Compared with chemical fertilizers, the application of organic fertilizers gives the fruit a pure taste and tender, fresh flesh. In production, fertilization should be based on the fertilizer requirements of pomelo trees, applying fertilizer according to the tree's condition. Fruit trees should be fertilized 4-5 times throughout the year. The first fertilization after fruit harvest is mainly to restore tree vigor, and the amount applied accounts for 30% of the whole year. The second fertilization is pre-flowering fertilizer, mainly decomposed farmyard manure, which should be diluted and applied as a liquid; nitrogen fertilizer application should be controlled. The third fertilization is fruit-stabilizing fertilizer, with a reasonable combination of nitrogen, phosphorus, and potassium fertilizers. The fourth topdressing is fruit-strengthening fertilizer, mainly quick-acting fertilizer, to promote fruit growth, but nitrogen fertilizer application should be controlled to avoid fruit cracking. In water management, follow the principle of “moist in spring, drained in summer, irrigated in autumn, controlled in winter”.

2. Flower thinning and fruit thinning

Honey pomelo has a large flower volume and consumes a lot of nutrients, so attention should be paid to flower thinning and fruit thinning. First, according to the emergence of flower clusters, remove the flower clusters on the upper part of the canopy and retain the flower clusters in the inner canopy and the middle and lower parts. When the flower buds show white, promptly thin out the buds at the head and tail of each flower spike, leaving only 2-3 robust buds in the middle. Fruit thinning should be based on tree vigor and plant size. During the young fruit stage, manually remove excess young fruits to ensure a reasonable load. At the same time, attention should also be paid to removing diseased and pest-damaged fruits, deformed fruits, and small fruits, and finally thinning dense fruits according to the set fruit number.

3. Girdling

Girdling cuts through the phloem, which can inhibit root growth, increase the carbohydrate content of the branch groups above the girdling incision, raise the concentration of tree sap and the carbon-to-nitrogen ratio, and increase flower volume by about 20%-30%. Girdling should be timed according to tree vigor and flower volume. The objects of girdling are young bearing trees with vigorous vegetative growth. For trees with fewer flowers, carry it out at full bloom; for trees with more flowers, postpone it until after flower drop. The girdling depth should preferably reach the xylem, and spiral, single-ring, or double-ring cuts can be used.

The above is an introduction to flower promotion and fruit retention techniques for honey pomelo. I hope it can help you. To learn more related knowledge, please keep following us.