Longan is a rare fruit of subtropical specialty in China. China's cultivation ranks first in the world, and our region is a dragon.

One of the main producing areas of eyes. Since 1980s, longan production in our region has developed rapidly, reaching 1997.

The planting area is 3.3 million mu, and the total output is 6.5438+0.375 million tons. To 654.38+0998, with an area of more than 3.7 million mu and output.

It has reached 165900 tons. Both area and output exceed Fujian and Guangdong provinces, ranking first in the country. But our district

There are many problems in longan production, first of all, the yield per unit area is low and the average yield per mu is low.

The yield is about150kg, which is 680kg lower than the highest yield of more than 830kg per mu in Fujian Province and higher than that in Tongan, Xiamen.

Area1985-1995, with an average yield of 220kg, 70kg lower. Main reasons for low yield of longan in our region

Reason: In addition to operators losing confidence in their business and stepping into a vicious circle of low input and low efficiency, there have also been bumps.

In addition to pipeline failure, it is mainly affected by global temperature rise and the increase of warm winter years in China, which makes

The vegetative growth and reproductive growth of longan are unbalanced. Specific performance in the winter shoot, spring shoot and female.

The proportion of flowers is low. In view of these problems, I have been working in the front line of longan production since 1996.

In this paper, the cultivation and management techniques for high and stable yield of longan were discussed, and a set of successful cultivation and management experiences were mastered.

Experiments, especially the theory and practice of longan flower bud differentiation, have a clearer understanding, and made clear the "winter prevention"

The growth of new shoots, promoting the transformation of winter buds into flower buds, controlling the germination of new shoots and promoting the increase of the proportion of female flowers ",

Invented the technical preparation of Yuhualing series products, a bio-organic nutritional regulator for flowering plants of fruit trees.

Party, and applied for a patent. In order to transform this achievement into productivity as soon as possible and increase longan yield,

Achieve high and stable yields every year and make greater contributions to increasing farmers' production and income. Now introduce the richness of longan.

Cultivation and management techniques for high and stable yield.

First, fertilization

Fertilization is the main content of soil management of adult fruit trees, and it is the result of increasing and stabilizing production and overcoming different years.

The basic measures of the phenomenon should be based on the growth of longan trees, and sufficient fertilizer should be applied in stages to make it full.

Enough for it to grow and bear fruit. Adult trees can grow according to the tree body when the fertilizer source is sufficient.

In the past, the change of flowering and fruiting required fertilization 4~5 times a year. I think the next three rhizosphere fertilization.

That's enough.

(1) rhizosphere fertilization

1, pre-flowering fertilizer (flower-promoting fertilizer) was applied from the end of 12 to the middle and late stage of 1 in order to promote the health of flower heads.

Strong and well-developed floral organs. Fertilization amount: according to the fruit yield per plant 100 kg, apply compound fertilizer per plant 1-2 kg.

Compost 50- 100 kg, peanut bran powder 1 kg. Compound fertilizer should be sprayed or applied after rain.

Sprinkle farm manure and peanut bran powder around the crown of the rhizosphere. If you can open 50 centimeters around the crown of the tree

Deep annular furrow combined with weed application is ideal, and the fertilization period should be determined according to the tree potential and leaf color.

And rainwater. If the trees are lush, the leaves are greener or the weather gets warmer early.

Or there is a lot of rain, which is generally not suitable for early application. On the other hand, weak trees or cold weather or too much hormone control, then

Fertilize early.

2. The fertilizer for strong flowers and fruits should be applied after the formation of the ear skeleton and before the second physiological fruit drop.

The purpose is to supplement the nutrition of the tree in the late flowering period in time and ensure the nutrients needed for the growth and development of young fruits.

Reduce secondary physiological fruit drop, promote fruit growth and improve the yield of the year. In order to shoot autumn shoots after harvest,

Cultivate the fruiting mother branches and lay the foundation. Fertilization amount: per plant (calculated by fruit yield 100 kg).

Organic fertilizer 50- 100 kg (if fertilizer has been applied before flowering, it can be applied less when the fertilizer source is insufficient) and urea 1-2.

2-3 kg of gold, calcium magnesium phosphate, 2-3 kg of potassium chloride, 2-3 kg of peanut bran powder and 0.3 kg of magnesium sulfate.

-0.5 kg, evenly spread under the crown drip line, and cover with straw to spray water in time.

At this time, less or no chemical fertilizer can be applied according to the tree potential and leaf color.

3. Before (after) fruit, quick-acting nitrogen fertilizer is the main fertilizer, and it is especially forbidden to use after-effect fertilizer or granular fertilizer.

Insoluble compound fertilizer and other substances are not conducive to early absorption of fruit trees. The function of this fertilizer is to increase the yield.

Quantity, reduce late fruit drop, restore tree vigor, reduce fallen leaves after fruit picking, promote autumn shoot growth, and cultivate in time.

It is very effective to improve good fruiting branches, reduce the phenomenon of fruiting in big and small years and realize high and stable yield every year.

Before fruit picking 10- 15 days, spray 1 times of decomposed peanut bran water or manure water 20 on the crown of drip irrigation line.

0-300kg of urea1-2kg, soluble compound fertilizer1.5-3kg, and 30-50g of borax. such as

If the fertilizer cannot be applied on time, it must be applied within seven days after the fruit is picked, and the fertilizer is replaced by rotten flowers.

200-300kg of raw bran water or manure water, 2-3kg of ammonium bicarbonate, 2kg of potassium chloride, 1-

2 kg, borax 30-50g.

If the climate is dry, it must be watered thoroughly or irrigated in time to ensure that the autumn shoots are pulled out in time after fruit picking.

It is very necessary to apply fertilizer for the above three times, especially for the first and third time, and it must be implemented as required.

(2) Topdressing outside the roots

You can add some foliar fertilizer every time you spray medicine. It is suggested to adopt Yuhualing organic nutrition series products.

Products, use as little inorganic fertilizer as possible.

Second, shaping and pruning

Pruning of small trees

The purpose of plastic pruning is to cultivate trees with high and stable yield. Plastic surgery should start with small trees and start from scratch.

Planting begins. Fixed stem: leave the trunk 50-70 cm high when planting, and put it on the trunk after planting.

Choose 2-3 main branches with vigorous growth and reasonable orientation as the first-class branches, and the length of the first-class branches is 50 cm.

At the same time, pick the core at 40 cm. Similarly, 2-3 branches are selected as secondary branches on the primary branch. This is also the case.

The sample method leaves three branches and four branches. Make branches at all levels spread evenly around to form an open branch.

Round crown.

(2) Pruning of adult trees

The purpose of pruning adult trees is to maintain vigorous tree vigor and cultivate good fruiting mother branches. Trim pass

Often in spring, summer and autumn. Spring pruning is mainly to cut off branches that are too dense, too weak and sick and combine them.

Turn off the flowers Prune in summer from June to July, and cut off dense branches, pests and diseases, thin and drooping branches and knot them.

Turn off the fruit. Autumn pruning is mainly carried out after fruit picking, which belongs to fine pruning, mainly pruning.

Dead branches, pest branches, shade branches and over-dense branches, and cut off some over-dense summer and autumn branches.

Cut 1-2 branches with vigorous growth and reasonable distribution from each base branch to concentrate nutrients and promote

As a result, the mother branches grew in large numbers.

Third, pest control.

(a) longan "ghost broom disease" is also known as baldness, witch broom disease, broom disease and so on. Pathogen is a kind of

A virus spread by grafting or insect pests. After the tender branches of diseased plants are damaged, the tender leaves become narrow, curved and curled.

Qu, can't be unfolded, the leaves are light green. The diseased leaves are deformed and easy to fall off. The leaves at the tip of the disease dry and fall off.

Fall behind and become bald. Sometimes there are new buds clustered, internodes shortened and broom-shaped. Damaged spike node

Occasionally shortened, clustered or clustered, unable to bear fruit normally, the diseased trees are weak, and the yield is reduced.

Finally, the whole tree died.

Prevention and control methods:

1, giving priority to prevention, strengthening cultivation management, especially water and fertilizer management, increasing the application of organic fertilizer and timely.

Control pests such as psyllid, midge, moth wax cicada.

2. Cut off diseased branches in time, burn them centrally, and spray dicofol 800- 1000 times.

Spray twice in a row.

(2) Leaf spot and anthracnose harm longan seedlings and leaves, causing defoliation.

Prevention and control methods:

1, strengthen cultivation management and enhance tree potential.

2. Clean the garden in winter, focus on burning litter, and sprinkle lime powder all over the garden to reduce the source of germs.

3. Spray the ward with 0.5% Bordeaux solution or 70% thiophanate methyl 800- 1000 times solution during the onset period.

-3 times, with an interval of 10- 15 days.

(3) Phytophthora infestans are mainly flowers and fruits.

Prevention and control methods:

1. Before the flowers open and the fruits are damaged, spray 40% 300 times liquid or amobam.

800 times the liquid.

2. Xie Hua should arrange artificial flower shaking and shake off dead flowers in time. Otherwise, it will go out in rainy days.

Now "retting flowers"

3. Spray 1000 times sharp solution or 600 times antiviral alum solution once each in bud stage and small fruit stage.

(4) The midges-midges suck the juice of longan buds, branches, ears and young fruits with nymphs and adults.

Liquid. Brown spots appeared on the injured part, causing serious flower drop and fruit drop. The scales of smelly bedbugs often secrete smelly liquids.

Health, resulting in buds, leaves, ears and young fruits stained with smelly liquid burning and falling off.

Prevention and control methods:

1. When the temperature drops obviously in winter, use the characteristics of suspended animation of adults to shake trees and make them grow in leaves.

The adult smelly bedbugs and scale insects that overwintered on their backs were frightened and fell to the ground, and then they were swept away and killed.

2. Spraying trichlorfon 1 time with 800- 1000 times solution before and after the adults lay eggs and when larvae occur.

The first time is about mid-March, and the second time is about the end of April to the beginning of May.

(5) Borer (formerly called Lepidoptera) is the main pest of fruits, leaves and branches.

Want pests. Danger state: leaves, eaten from the midvein of young leaves, cause dead leaves and fallen leaves; Pat (Haimai)

Moth), larvae eat tender shoots and spikes, forming tunnels, and the growing points of branches are destroyed, forming clusters.

Fruit, adults lay eggs at the base of the fruit or on the pedicel, and after hatching, larvae invade the young fruit from under the eggs and feed on it.

Eating drupe will cause the fruit to fall off.

Prevention and control methods:

1, control winter shoots and reduce overwintering insect sources.

2. During the sprouting period of new shoots, check the amount of eggs laid on the terminal buds and leaves of shoots every 2-3 days, when the amount of eggs laid is relatively large.

This medicine is needed when it is not very important. Pesticides include: high-efficiency and low-toxicity grass-absorbing pesticides, which can also be used to kill 100 grams.

3000 times of liquid, 40.7% Robam 1000 times, 2.5% enemy killing 3000 times of liquid, etc.

3, fruit tree prevention 40 days before fruit picking, check the egg rate on the fruit, when the egg rate reaches 65438 0%, start spraying.

Drug control.

Fourth, control winter shoots and promote flowering.

Under normal climatic conditions, that is, under the condition of proper low temperature and dryness in winter, as long as planting

As long as the cultivation and management measures are proper, longan can bloom normally. However, with the increase of abnormal frequency of climate, the weather is getting warmer.

With the continuous emergence of winter and warm spring, it is impossible to ensure the normal opening of longan every year by ordinary cultivation measures alone.

It is also difficult to effectively overcome the phenomenon of flowering and fruiting in different years. In normal years, temperature, humidity, light

According to the normal situation, it conforms to the photoperiod, low temperature and moderate drought required by longan flowering, and is in longan trees.

Various nutrients, protein and hormones and their ratio can meet the needs of longan flowering.

But when the weather is abnormal, the normal growth of trees is disrupted, and all kinds of nutrients and hormones needed for flowering are needed.

Moreover, its proportion is out of balance, and nutrition grows too vigorously in winter. Therefore, in this case, it must be passed.

At present, most people mainly control winter shoots to promote flowers through chemical regulation (such as

Spraying hormone drugs such as ethephon and paclobutrazol, supplemented by cultivation measures, can reduce the flowering number of longan.

The consumption of required nutrients (mainly organic nutrients) and the maintenance of hormone balance make longan smooth.

The land changed from vegetative growth to reproductive growth, which offset the negative impact of abnormal weather on longan flowering.

What is the winter tip?

Winter shoot refers to the vegetative shoots that are taken from the end of the second year 1 1 to the beginning of 1. Flower bud differentiation and flowering location of longan

The required nutrients are mainly accumulated by the products of photosynthesis in autumn, while the winter buds germinate and disappear.

Consuming a lot of nutrients will inevitably reduce the nutritional basis needed for flower bud formation and inhibit flower bud differentiation.

, affecting flowering and fruiting. Not picking winter bamboo shoots is the key factor for longan to blossom, and any interference is broken.

The method of bad growth point cell metabolism can control the germination and growth of new shoots and achieve the purpose of controlling new shoots.

The more destructive this interference is, the more obvious the effect of shooting control and killing will be. Therefore, it is longan that controls the germination of winter buds.

High-yield cultivation is an important measure.

How to control winter buds? Methods of controlling winter shoots in the past:

(1) Deep hoeing and root cutting are more vigorous for trees, with full buds, and may produce winter buds, which are in longan trees.

The hoe is 20 cm deep, or an annular ditch with a depth of 30-40 cm is dug at the periphery of the crown to cut off the horizontal lateral roots.

Let it air-dry in the sun for 30-40 days, and then fill it with miscellaneous fertilizers, topsoil and garbage when the leaf color begins to fade from Huangshi.

Cover the back with soil.

(2) girdling is carried out after the last mature shoot, and the girdling depth is wood.

(3) Chemical drugs are used to control the senescence of autumn shoots, and paclobutrazol, Bijiu and Ethephon are used to control autumn shoots.

Flowers and other drugs to control or kill winter buds. Especially when winter buds appear and tender leaves are not unfolded, spray 0.2.

-0.3 ‰ ethephon kills bamboo shoots.

If the dosage of paclobutrazol and other drugs is not enough, the effect is not obvious and can not be controlled properly.

Shoots can promote flowering, but the concentration is too high, and it is often inhibited when it encounters high temperature and dry weather.

Degree, it is difficult to become a flower. Ethephon can induce female flowers, but it is also a shedding agent. If you don't use it,

When the dosage is too large, especially in bud stage, it is easy to lead to falling flowers and old leaves.

Fifth, suppress (kill) spring shoots and increase the proportion of female flowers.

The appearance of spring shoots is not conducive to flowering, and the flower buds of litchi and longan are mostly mixed buds of flower buds and leaf buds.

(mixed inflorescence), if the leaflets grow too vigorously, the flower buds will be inhibited, or the flower buds will degenerate or form.

Flowering and fruiting affect flower quality and reduce fruit setting rate. Therefore, inflorescence should be suppressed as soon as possible in production.

Leaflets. Manual demolition is often arranged in production. This method is simple, but the workload is large and it is not suitable for large scale.

Orchard adoption. At the same time, the proportion of female flowers cannot be increased. Another method, chemical control method, mainly

We should take advantage of the difference in shedding mechanism between young leaves and old leaves, and choose the one that only causes young leaves to shed without hurting old leaves.

The regulator can control and kill the young leaves in spring shoots within a certain period of time (3-7 days)

Flaky leaflets or mixed inflorescences inhibit vegetative growth, protect and promote the development of flower organs and improve the growth of flowers.

Flower forming rate and flower quality. At present, it is difficult to buy ideal drugs in the market by this method.

According to the actual production, we invented and created a bio-efficient organic nutrition regulator for fruit tree flowering.

-Yuhualing series products. This is a very feasible and effective method.

Six, longan flower bud differentiation "two control and two promotion" technology

The "two controls and two promotion" technology of longan flower bud differentiation refers to controlling the elongation of winter shoots and promoting the transformation of winter buds into flowers.

Bud, control the growth of new shoots, and promote the increase of female flowers. The technology adopts foliar spraying of Yuhualing series products,

Only winter buds and washed buds are controlled, and tender buds and buds are not killed, because the concentration used is too high or

Too much dosage will hurt old leaves. Therefore, it is convenient, safe, economical and efficient to use.

Due to the drought since autumn, the root system of longan tree was blocked from absorbing water and fertilizer, which led to the last autumn shoot.

Maturity was delayed, and the last autumn shoot with mother branches could not germinate on time at the end of September and the beginning of June. And 10.

After that, it rained all over the country one after another, so that mature autumn shoots sprouted from the end of June of 10 to the beginning of June of 1 10.

Shoot in late autumn. However, longan plants with white leaves or insufficient maturity will germinate after 1 1.

New buds are called winter buds. These buds mature slowly because of the drop in temperature, and the temperature will be the same when they germinate again.

If it is too high, it will not be a flower in the second year. Therefore, growth regulators such as ethephon or paclobutrazol are often used in production.

The main purpose of saving chemicals to kill buds or inhibit bud growth is to reduce the nutrient consumption of trees, which is beneficial.

When the fruit trees are in bloom, but if this practice is done by experienced people, the effect is still ok, if not small.

Heart, because the branches are old and tender, or because the length and potential of the trees are different, or the varieties are different, or when to spray.

At different temperatures, although the same drug is used at the same concentration, the effect will be different, with winners and losers.

What's more, plants will go into deep dormancy due to high concentration or excessive spraying.

Delaying the budding time, the temperature has exceeded the low temperature required for the bud to bud again, leading to the formation of new shoots.

Cheng Wuhua.

Using our technology will not cause the above problems:

First, the technical product we produce-Yuhualing, the main raw material comes from plants, from

Flower-forming protein extracted from plant nutrition was applied to longan flower formation.

Second, the main purpose of applying Yuhualing is to inhibit the growth of winter shoots of longan and other fruit trees and regulate the tree body.

Hormone and nutrition balance; Provide flower nutrition for longan, increase the accumulation of tree nutrition,

Improve the organic nutrition level of the tree, increase the cell sap concentration of the tree, and enhance the synthetic energy of macromolecules in the tree.

Force, synthesize specific enzyme proteins needed for flower bud differentiation, thus starting the expression of flower bud differentiation genes,

Promote longan flowering.

Thirdly, Yuhualing is only a special enzyme protein necessary for fruit tree flowering, and it does not kill dendrimers by itself.

Vegetarian, so don't kill the buds (not to mention the old leaves) or the flowers. Instead, it can greatly improve the quality of flowers.

A high proportion of female flowers.

How to use Yuhualing:

1, Xia Yanqiu bamboo shoots or autumn bamboo shoots: that is, bamboo shoots born before 65438+1October 20th are mature.

Please don't spray growth regulators such as ethephon and paclobutrazol to inhibit its growth in the future. If it is after the beginning of 65438+February,

Continue to shoot winter bamboo shoots. When they grow to 5-6 cm, spray 1-2 times to lure them.

Guide it into a bud.

2. Late autumn buds: when they mature, they have entered the cold month of 1, so they should be picked before turning green.

Spray Yuhualing once, a bottle of Yuhualing No.2 with 105 Jin of water to moisten the leaves. So it can be used in

1differentiate into flowers at low temperature of 65438+ from late October to March. If longan appears red in the first half of February, if it comes out

Now that there are leaflets, spray them again to prevent them from "rushing to the top" due to the high temperature above 20℃.

Increase the proportion of female flowers.

3. For old trees and weak trees, their growth is weak, their growth speed is slow and their nutrient accumulation is slow.

Therefore, after the new shoots germinate in late autumn, the following treatment must be done: after the leaves of the new shoots unfold in late autumn, use Yuhualing every 7 days.

1 Bao 1 diluted with 15 kg water and sprayed on the leaf layer until the leaf surface is covered with fog spots, showing a drop-shaped sample.

Spray continuously for 2-3 times. Potassium dihydrogen phosphate or potassium nitrate is added to each 15 kg of water for each spray.

Hefei 25-30g. Spray Yuhualing No.2 when the winter buds are pulled out.

morphological character

Evergreen trees, more than 20 meters high, DBH 1 m, with obvious roots; The bark is yellowish brown, rough and easy to peel off. Even pinnate compound leaves, alternate, long 15-30 cm; Leaflets are thin leathery, oblong or oblong-lanceolate, and 6 longan trees are long.

15cm, 2.5-5.0cm wide, with sharp or slightly blunt apex. Panicle terminal and axillary, long 12- 15 cm, flowers mixed, clustered, yellow and white; Kazuki Watanabe musician 5-cleft; Petals 5; Stamens 8, inserted in disk; Ovary sessile, 2-3-loculed, densely villous, with tubercles, stigma 2-3-lobed. The stone is spherical, and the peel is brittle and hard when dry, and does not crack; The seeds are spherical, brown-black, shiny and surrounded by fleshy aril. Characteristic wild longan is a common tree species in semi-evergreen monsoon forest in hilly plateau of southwest Qionghai. The annual average temperature in the distribution area is 24-26℃, and the annual precipitation is 900-1700 mm. Like dry and hot habitats, in the process of annual growth and development, winter and spring (11-April) need the temperature of 18-25℃ and suitable drought, and summer. As a light-loving tree, seedlings are not tolerant of excessive shading, and mature trees need plenty of sunshine. Natural regeneration is good, belonging to deep-rooted tree species, which can take root and grow in arid and barren soil. Strong germination, and the stumps that have been cut or burned can germinate and renew quickly. Natural growth is slow. The 83-year-old tree is only 20.2 meters high and DBH is 27 cm. It blooms in March-April and matures in July-August.

Edit the cultivation techniques in this section.

Longyanshu

Picking in July and August when the fruit is ripe and yellow-brown. The life span of seeds is very short. Remove the aril after shelling, and sow immediately after washing with clear water. When the height of seedlings is 8- 10 cm, the seedlings are planted in separate beds or moved into nutrient bags in spring rain or autumn, and the seedling age is six months or 1 year. The forest land is selected in the hilly platform below 500 meters above sea level. Cultivated varieties must be propagated by grafting.

Edit the value of this paragraph.

Protect value

Wild longan is a valuable germplasm resource for longan breeding. Wood has a fine and firm structure, is extremely resistant to corrosion and moth, and is a solid industrial material, which is suitable for vehicles, ships, bridges, water conservancy, furniture and other materials. Fruit is edible. The protection measures suggest that the semi-evergreen monsoon forest, which is not damaged and widely distributed, should be designated as a wild longan nature reserve, and a seed orchard should be established in the nearby state-owned forest farm to provide germplasm resources for cultivation and breeding. Cultivation points: pick the fruit in July and August when it is ripe and yellow-brown. The life span of seeds is very short. Remove the aril after shelling, and sow immediately after washing with clear water. When the height of seedlings is 8- 10 cm, the seedlings are planted in separate beds or moved into nutrient bags in spring rain or autumn, and the seedling age is six months or 1 year. The forest land is selected in the hilly platform below 500 meters above sea level. Cultivated varieties must be propagated by grafting.

Ornamental value

Longan is a fruit in southern China, mainly produced in Guangdong and Guangxi. Together with litchi, banana and pineapple, they are the four precious fruits in southern China. Its tree is one or two feet high, with long and slightly smaller leaves and white flowers, which became a reality in early autumn. In fact, it was a heavy fall and its shape was round and rolling. For example, the projectile is slightly smaller than litchi, and the skin is green and brown. Peeling crystal white, faintly visible inside the red and black stones, very similar to the eyes, hence the name "longan". Quanzhou is one of the main longan producing areas in China, which has been rich in longan since ancient times. Quanzhou people generally call longan fresh fruit longan, which is a roasted longan. Merchants often refer to both as "longan".

economic value

Dried longan is longan (longan, longan meat). Different from litchi, which belongs to damp heat, longan can be used as medicine, which has many functions such as strengthening yang and benefiting qi, nourishing heart and strengthening spleen, nourishing blood and calming nerves, moistening skin and beautifying face, and can be used to treat anemia, palpitation, insomnia, amnesia, neurasthenia, physical weakness after illness and postpartum.

Edit other information in this paragraph.

Longan originated in the south of China, and its cultivation history can be traced back to the Han Dynasty more than 2,000 years ago. Qi Yao Min Shu in the Northern Wei Dynasty (386-534) said: "Longan is a mystery and a comparison." Because it matures in the season when osmanthus trees are fragrant, it is commonly known as longan. It was listed as an important tribute in ancient times. Wei Wendi (535-55 1) once wrote to his ministers: "Longan and litchi are rare fruits in the south, so please pay tribute to the old people." Quanzhou is located in the southeast coast, with a suitable climate and abundant rainfall. Since ancient times, humanities have gathered together. Superior natural conditions and a long history of human development have promoted the cultivation of longan in Quanzhou. Longan was widely planted in Quanzhou in Song Dynasty. Su Song, a native of Tongan County, quanzhou county in the Northern Song Dynasty, recorded in Compendium of Materia Medica (106 1): "Longan was born in the valley of the South China Sea, and litchi is distributed in Fujian, Guangzhou and Sichuan today. Wang Zan Guiyuan, the secretariat of Quanzhou in the Southern Song Dynasty, said: "There is no light red sweeping the floor, and thousands of trees are whistling. It's like a puzzle that isn't medicine. It tastes really servile than litchi. Huang Ming Zhao Zhong's "Eight Min Tong Zhi" describes: "The longan tree is like a plum branch, but its leaves are small and its skin is yellow-brown. Longan is ripe as soon as the litchi branch passes, so southerners call it litchi branch slave. There are all counties in Quanzhou, and the county towns (now Licheng District and Fengze District) are particularly prosperous. In Shu Min written by Quanzhou Ren He in the Ming Dynasty, "There are lychee longan in the garden, and the trip on earth is dried. "Quanzhou longan grafting propagation technology has a long history. Grafting propagation of longan is recorded in Bo (1597) and Deng Daoxie (1628). In the early Qing Dynasty, Zhou Lianggong's Notes on Fujian (1666— 1668) and Guo Baicang's Records of Fujian's Production are different in types and are still in use today. The old method is to fill the soil with hanging bowls. There are many varieties of longan in Quanzhou with different flavors. There are more than 50 famous varieties such as Puming Anben and Hon Hai Er Benben. Longan, the most acclaimed pioneer, 1993 China Agricultural Fair Gold Award. " Dongbi Longan originated from the corner of Dongbi Temple next to the East Tower of Kaiyuan Temple in Quanzhou, hence its name. Her mother was planted by monks in Kaiyuan Temple during the Wanli period of the Ming Dynasty (1573- 1620) and died in War of Resistance against Japanese Aggression for more than 300 years. There is an ancient longan tree in Chengtian Temple in Quanzhou, which has a history of more than 200 years. It is the oldest tree in the eyes of the existing "Dongbi" dragon. Today, "Dongbi" longan is widely propagated in Quanzhou and other longan producing areas in the province. Legend has it that in the early days of Xianyou, a monk took "East Wall" longan seedlings from Kaiyuan Temple in Quanzhou and planted them in Xianyou. Now, 20,000 adult trees have been cultivated and named as "Quanzhou Ben", but the quality is not as good as the original "Dongbi" longan. "Dongbi" longan is of good quality. Its skin has a pale yellow tiger pattern, which is called "flower shell" by Ren Quan, which is the most remarkable difference between its appearance and other longan varieties. "Dongbi" longan is also called "candied melon honey". Its flesh is pale white, transparent if frozen, thick, tender and crisp, sweet and fragrant. It has the characteristics of "paper is not wet, dust can not afford sand" and is called the treasure of the fruit. There is also a kind of "lucky eye", formerly known as "tiger eye". "Quanzhou Prefecture Records" records that "a great man is famous for his tiger eyes". The sound of "tiger" and "blessing" in spring language is similar, so "blessing eye" is used instead of "tiger eye" to take its auspicious and beautiful meaning. Yanfu is the main cultivated variety in Quanzhou, which has been cultivated for more than 800 years. He has won the International Paris Tourism Food Gold Award and the China Agricultural Fair Quality Award. In recent years, longan has been planted in all producing areas in the province, which is the largest variety planted in our province. It is said that the big longan planted in Taiwan Province is also called "Yan Fu" by local compatriots.

Give it to me, will you?