Morphological characteristics of Illicium verum How to raise Illicium verum

Illicium verum is an Illicium plant belonging to Illicium of Dicotyledonous subclass. Its fruits and seeds can be used as seasoning and medicine. It mainly lives in subtropical humid and warm valleys. What are the cultivation methods of Illicium verum? The following is what I have compiled about how to raise star anise. I hope you like it!

Cultivation method of Illicium verum

First, clear the forest land and adjust the density:

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. Without a quiet and humid microclimate, trees can't achieve high and stable yield. Therefore, it is necessary to adjust the density, sparse and dense forests, cut off pests and diseases, and eliminate the fittest; Sparse forest and replant fine varieties and strong seedlings or large seedlings with soil to control the canopy density of Illicium verum forest at 0.8? Do not connect each other at a distance of 1.2 meters. Clear the miscellaneous shrubs within 4 meters of the forest edge, cut off diseases, insects, 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.

Second, weeding and reclamation:

Soil is one of the main conditions for Illicium verum to survive. Measures such as tending, loosening soil and pressing green should be taken to improve soil structure, adjust PH value and improve soil fertility, so as to provide ideal soil conditions for the growth and development of Illicium verum. Looking after it in room 7? Before harvesting Illicium verum in August, the grass should be shoveled or mowed once, and comprehensive reclamation should be carried out on the gentle slope with small slope. If the slope is greater than 25 degrees, strip reclamation or block reclamation will be adopted, and weeding tending will be changed to mowing tending. The reclamation time should be completed before the end of February, 65438, until 10. Try not to damage the roots and ensure that the roots of Illicium verum can absorb water and fertilizer. Reclamation and tending can keep Illicium verum at 50? 60 years, if not managed, 5? Six years without harvest will naturally decline.

Third, fertilization:

Illicium verum flowers and fruits do not leave branches all the year round, so they need to be supplemented with enough nutrition. According to the demand of Illicium verum for water and fertilizer and the analysis of soil nutrient content in woodland, different formula proportions were used for fertilization at different stages. 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 at 1 1? 65438+ February and May? Twice in June. 1 1? After the harvest of Illicium verum in June+February, 5438, it was the wintering period of Illicium verum young fruit. Fertilization in this period can supplement nutrients in time, enhance the overwintering resistance of young fruits, and effectively promote the early growth of new shoots in the next spring. 5? June is the germination period of fruit growth and flower bud differentiation of Illicium verum. During this period, the last application of decomposed organic fertilizer can not only improve the yield and quality of Illicium verum in that year, but also promote flower bud differentiation, laying the foundation for high yield in the next year. Apply decomposed organic fertilizer to each plant every time 1? 3 kg, applying fertilizers such as nitrogen, phosphorus and potassium at a rate of 0.5 per plant each time? 1 kg. Generally speaking, it is best to dig an annular ditch for deep construction, that is, to open an annular ditch above the projection around the crown, with the ditch length of 1? 1.5m, width 25? 30 cm, spread the fertilizer evenly in the ditch and cover the soil.

Four, pest control:

Pest control of Illicium verum mainly adopts the methods of protecting the environment, protecting natural enemies, giving priority to prevention and combining prevention with control. 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 damage is found, larvae can be caught by artificial vibration or 800? 900 times trichlorfon solution and 600? 800 times omethoate spray. 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 Economic Value of Illicium verum

The fruit of Illicium verum can be used as medicine. Contains volatile oil, fatty oil, protein, resin, etc. The oil contains anisole, safrole, anisaldehyde, anisole, phellandrene, etc. It is warm in nature and pungent in taste. Has the effects of warming yang, dispelling cold, regulating qi and relieving pain. Can be used for treating cold vomiting, cold hernia, abdominal pain, lumbago due to kidney deficiency, wet and dry beriberi, etc. It has strong fragrance, and has the effects of expelling worms, warming middle warmer, regulating qi, invigorating stomach, stopping vomiting, dispelling cold and calming the nerves. Illicium verum can be used not only as seasoning, but also as raw material for perfume, toothpaste, soap and cosmetics. In industry, it can also be used as a repellent and stimulant in medicine.

Illicium verum is reddish-brown, with straight texture, fine structure, light weight and insect resistance. It is used for furniture, boxes, toys and joinery. Morphological characteristics of Illicium verum