Can lychees be grown in Sichuan?

Can lychees be grown in Sichuan?

Lychees can be grown in Sichuan. The Luzhou area in Sichuan has historically been rich in lychees and longans. Luzhou now also has a dedicated modern agricultural park for lychees. However, due to climate reasons, the lychees produced in Sichuan may not be as good in taste as Lychees produced in Guangdong were recorded in the Tang Dynasty. There were many records of Sichuan lychees. In the early Qing Dynasty, Chen Ding's book recorded the production of lychees in Sichuan, Guangdong and Fujian provinces. Lychee is native to southern my country and is mainly cultivated in Hainan, Guangdong, Guangxi, Fujian, Taiwan and other places. Chengdu and Fuzhou are the northern limits of its growth. my country's Hainan and Guangdong Provinces cultivate the most lychees, accounting for about half of the total area of ​​lychees in my country, followed by Fujian, Guangxi, and Taiwan; Sichuan, Yunnan, Guizhou, and southern Zhejiang also have a small amount of cultivation.

Can lychee trees be planted in Sichuan? Thank you

There are lychees in Sichuan.

Lychee production: Guangdong, Fujian, Guangxi, Sichuan, Yunnan, Guizhou, Taiwan and other places.

"Compendium of Materia Medica": Litchi grows in Lingnan and Bazhong. Today, there are Quan, Fu, Zhangzhou, and Xinghuajun in Fujian, and Jia, Shu, Yu, Fuzhou, and the two counties of Guangzhou in Shu.

Can lychees be grown in Neijiang, Sichuan?

Longan’s requirements for external environmental conditions: Longan is native to the subtropical region of southern my country. During its long-term phylogenetic development, it has formed an adaptation to hilly terrain. The red soil mountainous areas are barren and dry. Longan likes high temperatures and humidity. Since the trunk is covered with a thick layer of bark, it is more cold-resistant than lychee. It needs a period of lower temperature in early spring to facilitate the differentiation of its flower buds. (1) Temperature Temperature is an important factor affecting the growth and development, flowering and fruiting, and geographical distribution of longan. When the annual average temperature reaches above 20℃, it is more suitable for the growth of longan. This area can form a good economic cultivation area. The annual average temperature in Yibin, Sichuan Province is only 18.4℃, but there is no continuous frost in winter, the frost-free period is long, and the absolute low temperature is not lower than -1℃, so it has become an economic cultivation area. When the temperature drops to 0℃, longan seedlings are susceptible to freezing damage. When the temperature dropped to -0.5°C to -4°C, the longan tree showed varying degrees of frost damage. The degree of freezing damage is related to the geographical environment. Generally, trees on hillsides are less harmed than trees on plains and lowlands; trees in the south and southwest are less harmed than trees in the north and northeast; trees with large water bodies nearby are less harmed than trees without large water bodies. light. In addition, young trees suffer more damage than adult trees; the trees are strong, have a dense crown, suffer less damage, and recover faster after damage. In early spring, longan needs a period of lower temperature of 8-14°C to facilitate flower bud differentiation. Beyond this temperature range, the higher the temperature and the longer the duration, the easier it is for the longan tree to cause "shooting". When blooming, longan requires a temperature of 18-27℃. Under temperature conditions of 25-32°C, longan branches grow quickly, the fruit has high sugar content and is of excellent quality. (2) Moisture Longan’s water requirements can be summed up in one sentence: Longan is a subtropical fruit tree that is drought-tolerant, moisture-loving, and afraid of flooding. During the growth and development process of longan in its annual cycle, each growth stage has different requirements for water. From the mature autumn shoots in November to April of the following year, less water is needed during this period to avoid winter shoots and increase the accumulation of nutrients in the branches and leaves, which is conducive to flower bud differentiation and flower spikes. and flowering and fruit setting; other periods, especially July-August, require more water. If there is a lack of water, it will affect the growth and development of the root system and branches, and affect the yield and quality of the fruit; if it is in the later stages of fruit development, prolonged drought and showers will also cause fruit cracking and fruit drop. Longan has mycorrhizae and has strong drought tolerance. If the orchard is flooded for a short period of time, the longan will not be harmed. However, if the orchard has accumulated water for a long time or the groundwater level is high, the longan root system will suffocate and rot, causing the tree to decline. (3) Soil: Longan has no strict requirements on soil conditions. It can grow even on hilly red soil that is barren, dry and acidic. The hilly red soil has deep layers, good drainage, air circulation, and sufficient sunlight. If the soil can be deeply plowed and improved, and more organic fertilizers can be applied, longan can grow well and obtain better harvests. However, when planting longan on slopes, you need to do a good job in soil and water conservation. It is appropriate to choose southeast, south, and southwest slopes for gardens to avoid wind damage and cold damage. A good longan garden should have deep, soft, moist soil, rich in organic matter, slightly acidic soil, and a pH value between 5.5-6.5. In addition, longan is a positive fruit tree. Sufficient light is beneficial to its growth and fruiting, but the fruit needs appropriate shade. The longan tree has a large crown and is susceptible to wind damage. Strong winds can also cause a large number of fruit drops. Therefore, necessary measures must be taken when building a garden. Lychee is a tropical plant, and light is the energy necessary for litchi to carry out photosynthesis to produce organic matter. Lychee is a sun plant and needs sufficient sunlight to support its growth and development. Sunlight can promote assimilation, promote flower bud differentiation and increase fruit color and flavor. However, if the sunlight is too strong during the flowering period, the amount of evaporation will be large, causing the filaments to wilt, the stigmas to dry, and pollination to be difficult. Therefore, the sunlight during the flowering period should be long but not too strong. During the development period of young fruits, the weather should be sunny, otherwise insufficient sunshine will affect the progress of photosynthesis, resulting in malnutrition and fruit drop. During the fruit ripening period, sunny weather is even more important, otherwise the fruit will not be fresh in color, have a light fragrance, have less sugar, and will be of poor quality. As the saying goes: "Lychee to the south, longan to the north." This is a summary of fruit farmers' years of experience. There is more sunshine in the south, southeast and southwest, which is conducive to flower bud differentiation and better fruit quality. The lowest low temperature tolerance of litchi is about 0℃, and the limit is -2℃.

Therefore, the temperature should be kept above 2℃ when potting. It can be maintained at natural temperature in summer and autumn. The budding spring shoots or flowering spikes need to be in a moist soil to achieve better results. If there is too much rain during the flowering period, the flowers will burn out and produce few or even no fruits. During the flowering period, especially when the female flowers are in bloom, sunny days are conducive to pollination. After winter, lychees enter flower buds...

I want to grow lychees back to Sichuan, is it okay?

It should be possible. Sichuan is one of the areas where lychees grow, with higher average annual temperatures and abundant rainfall. Moreover, Yibin is located near the river and has high air humidity, which is very suitable for the growth of lychees. I found some information that proves that Yibin was once more suitable for lychee cultivation. Nowadays, the most lychees in Sichuan are mainly produced in Hejiang County, Luzhou.

"The planting and production of lychees in southern China has a history of two thousand years. "Huayang Guozhi" and other historical books record that the Yibin area was rich in lychees as early as the Qin and Han Dynasties, "New Tang Book·Geography" " also records that there is lychee decoction in Yibin Tugong. Cai Xiang's "Lychee Pu" is the earliest monograph on lychee in China. "But at present, Guangdong and Fujian are more suitable, and the varieties may be different. , I don’t know about this, you can check the relevant information. Hope you succeed.

Can lychees be grown in Guangyuan, Sichuan?

Lychees (scientific name: Litchi chinensis Sonn.) are native to southern China. They are subtropical fruit trees, evergreen trees, about 10 meters high. The peel has scaly protrusions, bright red, and purple. The pulp is translucent and creamy when fresh and has a delicious flavor. But not resistant to storage. Lychees are hot in nature, and eating too much can easily lead to internal heat and can cause "lychee disease". The wood is solid, dark reddish brown, has an elegant texture and is corrosion-resistant. It has always been a top-quality wood. It likes high temperature and humidity, and prefers light and sunshine; its genetics require relatively low temperatures during the flower bud differentiation period, but the lowest temperature will be -2~-4℃ and it will suffer frost damage; during the flowering period, it is most beneficial to have sunny and warm weather but not dry heat, and the humidity is too low , continuous rain, dry and hot weather or strong north wind are not conducive to flowering and pollination. Unfavorable weather during the flowering and fruiting period may cause flower and fruit drop, or even loss of harvest. So it is difficult to plant.

Can lychees be grown in Bazhong City, Sichuan Province?

Lychees can be grown in Bazhong City, Sichuan Province. Lychees are mainly produced in southwest, south and southeast China: Guangdong, Guangxi, Fujian, Sichuan (Bazhong), Taiwan, Yunnan and other places, especially in Guangdong and southern Fujian, where they are most cultivated.

According to the "Compendium of Materia Medica": litchi grows in Lingnan and Bazhong. Today, there are Quan, Fu, Zhangzhou, and Xinghuajun in Fujian, and Jia, Shu, Yu, Fuzhou, and the two counties of Guangzhou in Shu. Among its products, central Fujian is ranked first, followed by Sichuan and Lingnan.

Is Sichuan suitable for growing lychees?

The length of the bud-pregnancy period from when the lychee flower spikes are extracted to when they bloom is related to many factors, but it is most common in winter and spring ( The temperature has the greatest impact from January to March, usually 30 to 40 days, while the length of the flowering period is related to the variety, climate, and the sooner or later the flower spikes emerge. The short one is only 15 days, and the long one can be up to 86 days. The flowering of lychee trees has the following characteristics.

Flowering order

Lychee is a dioecious tree species. Female flowers and male flowers are on the same flower spike. The flowering order is different depending on the location and gender of the flower spike. Generally, the single flower between the two spikelets blooms first, followed by the central flower of each spikelet, and finally the florets on both sides. Most of these flowers that bloom first are male flowers. There are roughly three types of opening sequence of male and female flowers: parthenogenetic, single and simultaneous maturation, and multiple isomaturity. The parthenogenetic type refers to the situation where male and female flowers bloom separately, resulting in the absence of male and female flowers. In the latter two, male and female flowers bloom at the same time or male and female flowers meet, such as March Red, Feizixiao, Huaizhi, White Wax, Guiwei, etc. The flowering of the variety has this property.

Flowering time and process

Lychee flowers have no petals. When the male flowers bloom, the top of the buds first split vertically. It takes about 4 to 5 days from the buds to split to the time when the filaments are exposed, and then 2 to 3 days. At the peak flowering stage, the anthers crack and release pollen, and then completely wither after 2 days. When the female flowers are not yet open, the stigmas already protrude from the outside and gradually turn from dark green to white. After 4 to 5 days, the ovary and style elongate. After another 4 to 5 days, the stigmas split and divide, secreting mucus. This is the female flower blooming stage. It is the optimal time to receive pollen. After 2 to 3 days, the stigma changes from white to yellowish brown and withers, indicating the flowering stage.

Ratio of male and female flowers

The ratio of male and female flowers in lychee flowers is closely related to fruit setting, and is affected by many factors such as variety, tree vigor, climate, condition of fruiting mother branches, and cultivation and management. According to previous statistical observations, varieties with a high proportion of female flowers include March Red, Nuomi Ci, Hei Ye, etc., which can reach 27% to 33%, while the proportion of female flowers such as Hanging Green and Guiwei is 13% to 15%. In addition, young fruiting Trees have a lower proportion of female flowers than adult fruit-bearing trees, and late-flowering trees have a higher proportion of female flowers than early-flowering trees of the same variety.

Environmental conditions requirements

The heading and flowering stages of lychees are greatly affected by temperature and are negatively correlated. The flowering temperature of lychees varies depending on the varieties. The early-maturing variety March Red can bloom when the temperature is 7 to 10°C. Most medium and late-maturing varieties require about 18 to 24°C to bloom. Flowering will decrease above 29°C; 22 to 26°C. ℃ is the most suitable temperature for pollen germination. Below 18 ℃, pollen and insect pollination will be affected. If it exceeds 30 ℃, the flowering period will be shortened, stigmas will dry easily, pollen germination and pollen tube elongation will be affected, which is detrimental to pollination and fertilization.

Avoid rain during the flowering period of lychees, especially continuous rain or low-temperature rain, which is more harmful. More rain will lead to flower rot, and accumulation of water on the flower spikes will cause "retting".

Mainly produced in southwestern, southern and southern China Southeastern [8] Guangdong, Guangxi, Fujian, Sichuan, Taiwan, Yunnan and other places, especially Guangdong and southern Fujian, are most cultivated. In 2014, Xinhua, Guangdong Province had another high output. According to statistics from the Conghua Municipal Agricultural Bureau, Conghua City’s lychee output this year was nearly 60,000 tons, exceeding the city’s historical highest output of lychees (the previous highest output was 57,000 tons in 2002) ).

It is also cultivated in southeastern Asia, and introduction records have been recorded in Africa, America and Oceania. The latitude distribution ranges from 18° north latitude to 28° north latitude. Lychees are also grown in many countries outside China, and lychees were introduced to India around the 10th century. It was introduced to many countries such as Vietnam, Peninsular Malaysia and Myanmar in the 17th century. Countries (regions) that have introduced lychee cultivation include Florida and California in the United States, Queensland in Australia, India, South Africa, Madagascar, Israel and Mexico. Lychee is a famous fruit tree with a long history of cultivation in southern China. It is generally recognized that its origin is in the tropical and subtropical areas of southern China. Wild lychees have been found in inaccessible tropical forests in Hainan and Yunnan, providing direct evidence for the above conclusion.

Is it suitable to plant lychee trees in Sichuan? Does temperature and climate have any impact? 30 points

The climate in the basin is very humid and does not have the lighting conditions that lychees need. Heavy moisture also affects the acidity and alkalinity of the soil, making the fruit flesh less juicy and sour.

Can lychees be grown in Xichang?

Lychees can be grown in Xichang, as long as they are within the distribution range of the species, the weather is like spring all year round, and the climate is suitable, just pay attention to management.

Distribution range:

Chinese lychees are mainly distributed between 18 and 29 degrees north latitude, with the most cultivation in Guangdong, followed by Fujian and Guangxi, and also in Sichuan, Yunnan, Guizhou and Taiwan. Cultivated in small quantities.

It is also cultivated in southeastern Asia, and there are records of introduction in Africa, America and Oceania.

Growth habits:

It likes high temperature, high humidity, and sunshine. Its genetics require relatively low temperatures during the flower bud differentiation period, but the lowest temperature will be -2~-4℃. Suffering from frost damage,

Sunny and warm weather but not dry and hot weather during the flowering period is most beneficial. Too low humidity, continuous rain, dry and hot weather or strong north wind are not conducive to flowering and pollination.

Breeding season:

It can be carried out all year round, but it is easiest to take root from March to April. Generally, early-maturing varieties are planted in February-March, and mid-maturing varieties are planted in April. Carry out mid-term.

At this time, the lychee gradually enters a period of vigorous growth activity. The sap flows vigorously and can easily peel off the phloem. After girdling, the wound callus forms quickly, roots grow quickly, and seedlings mature early. As the saying goes, "Flowers peel and fruits fall."

Key points of cultivation:

A mature fruit-bearing tree with high, stable, high-quality, and excellent variety traits should be selected as the mother plant.

In the upper part of the crown of these mother plants, select 3 to 4-year-old branches with a diameter of about 2 cm, upright or diagonally extending out of the crown, with sunlight visible, strong branches free of diseases and insect pests.

Use a knife to girdle the selected branch twice, deep into the xylem. The distance between the two knives is about 3 cm. Use the tip of the knife to peel off the cortex between the two knives and peel off the cambium layer on the xylem. To be shaved clean.

After peeling, let the peeled mouth dry for a week to allow the remaining cambium cells to die, or wait until callus tumors form before bandaging to promote root growth.

Apply 500 to 1000 mg/L of indole acetic acid or naphthalene acetic acid to the wound in front of the mud ball, which is beneficial to early root growth.

Add an appropriate amount of fresh cow dung and phosphorus and potassium fertilizer to red loam or garden soil, soak with water and mix thoroughly to make a mud ball with a water content of 60%. When wrapping the mud ball, wrap the mud ball with the upper incision of the girdling area as the center, and then wrap it with plastic film. Tie it tightly to prevent the mud ball from loosening.

After 50 to 60 days of growth, when thick white roots grow on the incision, the high-pressure seedlings are cut off, and the seedlings are left about 40 cm high and cut short for fake planting or colonization.

Is Mianyang, Sichuan suitable for growing lychees? Solve . . Seek advice from experts. . .

Lychee likes light and requires long sunshine. The optimal temperature for growth is 23 to 26°C. When the daily average temperature reaches 17°C or above, new leaves begin to expand and basically stop growing below 10°C. Frost damage occurs at -4°C. Anthers do not crack when the temperature is lower than 8°C during the flowering period, but in January The key season for flower bud differentiation requires low temperatures below 15°C and above freezing. The growth and fruiting period generally requires more water. Acidic (pH 4.5-6) ​​sandy loam soil with deep soil, good drainage, and rich in organic matter is suitable. In the prime of life, the branches of fruit-bearing trees shoot out 3 to 4 times a year, forming densely shaded leaves. Flower buds are formed in the axillary buds at the top of the new shoots in early spring. Male and female flowers mature differently on the same plant.

It takes about 70 to 90 days after the female flowers are pollinated and fertilized for the fruit to mature. Pot friends should decide to plant the lychees based on their habits!