What are the planting methods of Glehnia littoralis?

Glehnia littoralis is also known as coral cuisine, Glehnia littoralis, Glehnia littoralis and so on. Taking underground root as medicine has the effects of moistening lung, relieving cough, nourishing stomach and promoting fluid production. Indications: lung dryness and thirst, fever and body fluid injury, bronchitis, etc. Location: Shandong, Liaoning and Hebei.

Glehnia littoralis is also known as coral cuisine, Glehnia littoralis, Glehnia littoralis and so on. Taking underground root as medicine has the effects of moistening lung, relieving cough, nourishing stomach and promoting fluid production. Indications: lung dryness and thirst, fever and body fluid injury, bronchitis, etc. Location: Shandong, Liaoning, Hebei, Inner Mongolia, Jiangsu, Zhejiang, Fujian, Taiwan Province and Guangdong coastal provinces.

morphological character

It is a perennial herb of Umbelliferae, with a height of 5-20 cm and grayish brown villi throughout the plant. The taproot is slender, cylindrical, 30 cm long and 0.5- 1.5 cm in diameter, with few branches. Stems erect and unbranched. Basal leaves, stalk about 10 cm long, sheath-like at the base, membranous at the edge; Leaf blade ovoid or triangular-ovate, 3-pinnately divided or 2-3-pinnately divided. Compound umbel terminal; The total ridge length is 4 4- 10/0cm; Each umbel has flowers 15-20, 5 petals, and the top is folded into white; Calyx teeth 5, narrowly triangular-lanceolate; Stamens 5, alternate with petals; The ovary is inferior, the style base is oblate and conical, and the stigma is 2-lobed. Double hanging fruit, spherical or oval, 5-ribbed, with cork wings and brown coarse hair; The fruit is yellowish brown when it is ripe.

1, Anguo, Hebei: It is the traditional old producing area of Glehnia littoralis. Before the reform and opening up, when the land was not contracted to households, Anguo drug farmers had the habit of planting Glehnia littoralis in private plots. As a traditional cash crop, it has been developing continuously until now. Anguo Adenophora adenophora is characterized by short and thick skin, but its yield is large and its price is low. Mainly sold in China, used for processing decoction pieces and feeding pharmaceutical companies, only a small part is used for export. The output of Adenophora adenophora accounts for 40% of the national total output, and it is the largest main producing area in China at present.

2. Laiyang, Shandong: It is also a traditional old producing area. Adenophora adenophora in Laiyang, commonly known as "one-column incense", has a thin yellow-white skin, delicate texture and slightly fragrant smell, but its output is low and its price is high. Mainly sold in Shanghai and Guangzhou, and exported to Southeast Asian countries. In recent years, due to the rapid development of other cash crops in Shandong, the cultivation of Glehnia littoralis has shrunk obviously.

3. Chifeng, Inner Mongolia: Niuyingzi Town in Chifeng is a new production area after years of baptism. Because of its special sandy loam and light conditions, it is suitable for the growth of Glehnia littoralis. Coupled with careful management by drug farmers, the quality is better than that of Anguo's Radix Glehniae. Its market price is relatively high, and it is mainly sold in Guangzhou and Shanghai for export. Because Niuyingzi Town in Chifeng is far away from the professional market of Chinese herbal medicines, farmers' awareness of market economy is weak, and the output fluctuates greatly due to the price, so it is an unstable producing area.

Growth habit

Glehnia littoralis likes sunny, warm and humid environment. Cold tolerance, drought tolerance, salt tolerance, fear of high temperature, avoid continuous cropping. Requirements for soil: sandy loam with deep soil layer, loose and fertile soil and rich organic matter is preferred. Low-lying land is not suitable for planting.

Soil preparation and fertilization

Choose fields with high terrain and good drainage, and intensively cultivate them. Combined with soil preparation, sufficient base fertilizer is applied: 5000 kg of soil miscellaneous fertilizer, 20 kg of urea and 50 kg of phosphorus and potassium fertilizer are applied per mu. Then make a bed and wait for sowing.

sow seeds

Glehnia littoralis is propagated by seeds, and the sowing time is autumn sowing and spring sowing. Autumn sowing is around beginning of winter, and spring sowing is around Qingming. It is best to sow in autumn. Before sowing, the seeds must be treated, that is, the collected fresh seeds are evenly mixed with wet sand according to the ratio of 1: 3, and then placed in into the pit for treatment, and kept in wet and low temperature conditions. When sowing, shallow furrows are first made on the whole ridge, and then the seeds of Glehnia littoralis are evenly spread into the furrows and covered with soil. Trench spacing is 20 cm. The sowing amount per mu is 8 kg.

Tiantuan management

After all the seedlings of Glehnia littoralis are planted, attention should be paid to intertillage weeding. If planted in a large area, the soil should be treated with herbicides before seedling raising, which can effectively control all kinds of weeds. 3 true-leaf seedlings with a spacing of 3 cm. Pay attention to drainage in rainy weather, and water in time in dry weather. Before and after beginning of autumn, when the underground rhizome swells rapidly, topdressing should be done once: topdressing urea 10 kg per mu and topdressing mineral potassium dihydrogen phosphate. Promote the growth of underground roots. After the bud of Glehnia littoralis appears, in addition to seedling cultivation, the bud should be cut off in time to prevent nutrient consumption.

Eliminate pests and diseases

1. rust: it can be prevented and treated with 300 times of 97% diclofenac sodium solution or 1500 times of 25% triadimefon at the initial stage of the disease.

2. Root rot: comprehensive control measures can be taken: ① soil disinfection, and 3 kg of 50% carbendazim powder should be evenly applied to the ground during soil preparation. (2) Seed treatment: Before sowing, the seeds of Glehnia littoralis are soaked in 500 times of 50% carbendazim for 24-48 hours. ③ Spraying 1∶ 1∶ 120 bordeaux solution before the onset of the disease, or watering the diseased plants with 50% Tobuzine solution which is 0/000 times of/kloc-0 at the initial stage of the disease.

The main pest is the harm of stem borers drilling into stems, roots and buds. Pyrethroids can be used for prevention and treatment at the early stage of the disease. Aphids spray pirimicarb. Phoxim control underground pests.

Harvesting and processing

After growing for one year, Glehnia littoralis was dug around the first frost, and the stems and leaves on the ground withered. First cut off the stems and leaves on the ground, then dig out the underground roots, remove the soil, put them in boiling water 10 seconds, take them out when peeling, immediately put them in cold water for cooling, dry them in the sun or dry them in time while peeling them wet, and then sell medicines. The yield per mu is 250-350 Jin.