Where is the climate suitable for planting Illicium verum? What is the market prospect of star anise?
Illicium verum is an economic plant of Illicium in Illicium, which is born in the humid and warm subtropical valley and distributed in Fujian, Guangdong, Guangxi, Guizhou, Yunnan and other places.
It is understood that Illicium verum is a subtropical tree species and likes warmth. The suitable growth temperature range is 20-30℃, the coldest daily average temperature is above 10℃, the hottest daily average temperature is above 25-28℃, and the frost-free period is above 3 15 days. The short-term light frost period has little effect on the growth of Illicium verum, but the place where it snows in winter has great influence on the growth of Illicium verum.
The above information shows that Illicium verum is not suitable for planting in Jiangxi and other places, because most areas in Jiangxi are frosty and snowy in winter, which is not only cold, but also very humid, which will also cause great harm to Illicium verum.
Recently, however, some netizens found a wild Illicium verum forest in Wuxin Village, Du Yu, Jiangxi Province, and it is growing well, indicating that Illicium verum can also be planted in Jiangxi Province. I believe this is good news for many friends in the south.
Illicium verum is a shade-tolerant plant, and its seedlings like to grow in a cool environment to avoid long-term sunshine.
Under the condition of shading degree of 70%-80%, it is beneficial to the growth of seedlings. When the shading degree is below 30%, the seedlings will grow poorly and the leaves will turn yellow or even die. It takes a year for seedlings to grow in shade. With the growth of plants, the demand for sunlight will gradually increase.
Trees that blossom and bear fruit need plenty of sunshine, but they are afraid of direct sunlight, so they are suitable for growing in valleys, hillsides and dense forests in mountainous areas with short sunshine time.
The optimum density of Illicium verum is 40 plants per mu. If the density is too high, there will be fierce competition for space and nutrients among forest groups, resulting in some undesirable phenomena such as lopsided crown and natural pruning, reducing the proportion of fruiting branches, consuming a lot of nutrients and reducing the yield and quality of Illicium verum.
At the same time, the density is too high, the light in the forest is insufficient, and it is closed and humid, which is prone to pests and diseases. Low density, more woodland space, low land utilization rate, strong sunshine in the forest and high wind speed can not promote each other among groups.
Therefore, it is necessary to adjust the density, sparse and dense forests, cut off pests and diseases, and eliminate the fittest; Sparse forest should be replanted with fine varieties and strong seedlings or large seedlings with soil, so that the crown spacing of Illicium verum can be controlled at about 0.8- 1.2 meters, and they cannot be connected with each other. Clear the miscellaneous shrubs within 4m of the forest edge, cut off the branches of diseases and pests, dead branches and twigs, ensure sufficient light in the Illicium verum forest, coordinate the relationship between vegetative growth and flowering and fruiting of Illicium verum, and improve the yield and quality of Illicium verum.
Illicium verum never leaves its branches, so it must be supplemented with enough nutrition. Fertilization is mainly based on decomposed organic fertilizer, or formula fertilization is carried out by combining nitrogen, phosphorus and potassium with trace elements required by Illicium verum. Fertilization time should be controlled in February and May-June of each year 1 1-65438.
Illicium verum diseases, including soot and anthracnose, generally occur in rainy weather, dense plants and poor ventilation. The main prevention and control measures are to clean up the forest land, adjust the density and ensure sufficient light in the forest land. In severe cases, chemical pesticides can be sprayed to kill the octagonal scale insects, so that the oil fume loses its nutrition and disappears naturally.
The main pests of Illicium verum are inchworm and Illicium verum. Generally speaking, they mainly harm the young leaves of Illicium verum in bud stage, so we should do a good job of inspection and prediction. When hazards are found, 800-900 times of trichlorfon solution and 600-800 times of omethoate can be sprayed.
Illicium verum anthracnose: In order to effectively reduce the source of Illicium verum anthracnose, all infected branches and leaves can be removed, burned centrally, and sprayed with 0.5% Bordeaux solution at the initial stage of the disease. In order to improve the disease resistance of Illicium verum, more phosphorus, potassium fertilizer or farmyard manure should be applied.
Illicium verum: Illicium verum is sprayed with 80% trichlorfon or 80% dichlorvos emulsion to kill water.
Silkworm moth of octagonal: Silkworm moth of octagonal is sprayed with cicada slough powder EC or 203 EC to extinguish water. After spraying, the bug was frightened and fell down along the silk, and then sprayed 1 time.
Located in the wild Illicium verum forest found in DuDu.
The price of star anise varies from place to place. Illicium verum produced in Sichuan is generally around 10 ~ 15 yuan, and about 20 ~ 25 yuan in Guangxi.
The fruit of Illicium verum can be directly used for daily seasoning, such as stewing, boiling, pickling, marinating and soaking. It can also be directly processed into spiced seasoning powder, while star anise oil and star anise oil resin are usually used in food processing industries such as meat products, condiments, soft drinks, cold drinks, sweets, cakes and baked goods.
The fruit of Illicium verum is mainly used to treat cold hernia, abdominal pain, cold pain in waist and knees, cold vomiting in stomach, epigastric pain, cold-damp beriberi and so on.
Fruits and seeds can be used as condiments and medicines, and can also be used as spices for toothpaste, soap, perfume and cosmetics, which have very high economic value.