How does banana resist the cold?

For fruit trees, there are flowers that have fruit. In the next month or so, the situation of the flowering spikes under the eyes of the lychee that has entered the flowering period is of great concern. Recently, reporters interviewed in the main production areas of Lianjiang, Gaozhou and Yangjiang, and learned that this year's lychee heading is generally better. Among them, the heading rate of scorpion laughter in most orchards has reached 80%. The other varieties such as cassia and glutinous rice glutinous rice are also successively Entered the heading period.

In addition, some experts said that due to the unsatisfactory winter shoots of some trees in the past year, it is estimated that about 30% of the litchi trees in the country will not bloom, but it cannot be inferred that the production of litchi will decline this year.

This year's lychee heading period is delayed

Lianjiang fruit farmer Liang Wenshuai planted about 100 acres of lychee, seven of which became scorpion laughter and three percent is Guiwei. "At present, there are more than 90% of the scorpion laughs. It takes a week to wait until the heading period is normal." Liang Wenshuai said that although the heading situation is still good, he is not daring to estimate the lychee production this year. "As long as the autumn shoots of the previous year can basically guarantee the production." Liang Wenshuai added that he also proposed that from the beginning of 2007, litchi can basically stabilize at 50-130 kg/plant according to the size of the tree.

For this year's lychee heading time is normal Yangjiang fruit farmer He Xiaolong proposed that this year's lychee heading is delayed by about a week compared with the normal year. He introduced that the long-term dispersion of the flowering period last year did not actually delay this year is the real delay. As for the reason for the postponement of the heading period, He Xiaolong believes that the low temperature during the Spring Festival and the two-month drought period last year led him to expect the flowering period of his orchard to be at the end of March.

He Yakui, a fruit farmer in Genzi Town, Gaozhou, also expressed his opinion on the postponement of this year's lychee heading. However, his explanation is that this year's lunar calendar appeared in May. "There was already a flower bloom at this time last year, but this year's two May's growth period is similar to the average year." He Yakui expects that the time for Litchi to start mass listing this year should be basically the same as in previous years.

However, Chen Houbin, chief scientist of the National Litchi Longan Industrial Technology R&D Center and professor of the Horticultural College of South China Agricultural University, believes that the basic reason for this year's lychee heading is mainly due to the appropriate time for the autumn season.

It is expected that the three fruit trees cannot be flowered

The normal lychee heading does not mean that the flowering is good after one month. Lianjiang fruit farmer Zhong Haiqiang has some concerns about the flowering situation in the later period: "After all, it is affected by temperature too much."

However, based on years of experience, Chen Houbin pointed out that as long as there is no frost damage, the late flowering of Litchi does not have much impact. He also pointed out that due to the unsatisfactory winter shoots of some trees in the past year, it is estimated that about 30% of the litchi trees in the country will not bloom. Despite the lack of flowers, Chen Houbin believes that this is precisely the opportunity for these fruit trees to carry out the orchard closure.

Chen Houbin introduced that the current method of cutting and retracting can achieve the purpose of confining the orchard. For the remaining 60% of the trees that can be flowered, Chen Houbin also reminded the fruit growers that due to the lack of light in the winter sunshine, the tree nutrients were poor, so the water and fertilizer management should be strengthened before flowering and it is recommended to apply suitable compound fertilizer or organic fertilizer to the soil. The main spraying foliar fertilizer supplements the tree nutrient.

Although 30% of the trees may not be able to form flowers, Chen Houbin said that it is not possible to infer this year's decline in litchi production or affect prices. “If the fruit quality of the normal flowering tree is properly managed, it may increase the yield.” The best temperature for inducing fruit tree flowering Chen Houbin said that it is not possible to accurately determine the optimum flowering temperature for each variety. In order to maintain a temperature of 20 ° C or less for a period of time, the flavor is below 10 ° C.