The Latest Technical Methods and Tutorial for Promoting Flowering and Preserving Fruit in Lychee
Lychee is a very delicious fruit, with a very elegant nickname——Concubine's Smile, and it is a specialty fruit of our country. It also has a wide planting area in our country, and as the lychee market grows larger now, growers all want to increase yields as much as possible. The key technique for increasing yield is promoting flowering and preserving fruit in lychee. So today, the editor brings you the techniques for promoting flowering and preserving fruit in lychee. Let's take a look below!
1. Cultivating flower spikes
During the planting process, management of lychee trees should be strengthened to cultivate healthy and sturdy fruiting mother branches and improve the flowering and fruiting rate of lychee. When cultivating flower spikes, the direction should be short and sturdy, sound, and with a normal ratio, laying a foundation for lychee fruit set. Therefore, when managing seeds, cultivating robust flower spikes is essential. During the growth period of lychee flower spikes, fruit-preserving agents and similar chemicals should be sprayed appropriately to promote flowering and preserve fruit. However, there should not be too many flower spikes, to prevent an excessive number of retained fruits later, which would affect the normal growth of lychee and instead reduce yield.
2. Regulating the flowering period
Lychee flower spikes have strong growth ability and a high flowering rate, but the number of female flowers is relatively small, and the flowering period is also relatively concentrated. However, because lychee varieties differ, their growth habits, growth stages, and so on all differ. So we should properly control the growth and development of lychee trees by regulating the flowering period of lychee. This increases the number of female flowers, reduces nutrient consumption, lowers cultivation costs, and promotes the development of flowers and fruits. It can also prevent the environment from affecting pollination and fertilization of lychee, improve the fruit-setting rate, and achieve the goal of promoting flowering and preserving fruit.
3. Artificial pollination
The female flowers of lychee trees must go through the pollination process before they can develop into fruit. Although lychee is a fruit tree with male and female flowers on the same plant, the growth times of female and male flowers differ, and they usually open in batches. Therefore, without artificial pollination, the success rate of natural pollination in lychee is very low. So during the planting process, we should do a good job of artificial pollination, which can be carried out through factors such as bees and wind. Or we can promote the simultaneous blooming of female and male lychee flowers, providing good conditions for pollination and fertilization of lychee.
4. Girdling to preserve fruit
Girdling is the most basic measure for preserving fruit in lychee, but it is generally used on fruit trees with strong growth, especially fruit trees that have fruited no more than twice, for which the girdling effect is very good. Therefore, it is also not suitable for old trees and weak-growing trees. Girdling begins about 10 days after female flowers fall. First, choose a sturdy branch with a diameter of about 5-7 cm, then girdle a ring around the branch. The girdling depth only needs to reach the xylem of the branch, and it must not be too deep, otherwise it will cause the fruit tree to die. Reasonable girdling can concentrate nutrients on the flowers and fruits and can improve the flowering and fruiting rate. However, the girdling time and method should vary according to the lychee variety.
We also need to understand the physiological fruit drop of lychee trees and use growth regulators reasonably. They can be sprayed about two weeks after female flower fruit drop, then sprayed again about one week later, for about three times in total, which can reduce fruit drop and increase the fruit load. However, be careful with growth regulators and do not use excessive amounts, to prevent excessive vegetative growth of lychee, which would instead affect the number of flowers and fruits of lychee. That is all for today's introduction. This article is for reference only. Thank you all for reading and supporting.