Coptis chinensis is a perennial grass plant of the genus Mao Liangke. It uses rhizome as a medicine, cold bitterness, diarrhea, dampness and detoxification. Indications of indigestion, antidiarrheal pain, anti-inflammatory effect.
Huanglian is mainly produced in China's Hubei, Sichuan, Yunnan, Shaanxi, Hunan, Zhejiang and other provinces, due to its different production areas and types, Coptis products can be divided into Wei Lian, Ya Lian, Yun Lian points. WeiLian has the largest planting area and is mainly distributed in eastern Sichuan, western Hubei, and southern Shaanxi. Yalian is mainly produced in Hongya County and Ya'an City in Sichuan, and Yunlian is mainly distributed in northwestern Yunnan.
Coptis generally grows in the alpine mountains of 1200 to 1800 meters above sea level, with a pleasant cool and humid climate. In winter, it can normally pass winter within minus 8 °C. Coptis has higher water requirements and is not tolerant to drought. Due to its shallow roots and large leaf area, it requires more water, but it cannot accumulate water. Therefore, it should be drained in time during the rainy season. Rhizoma Coptidis is a plant that grows like a shade and avoids strong direct light irradiation. The light is weak and the light is scared at the seedling stage. Therefore, cultivated Coptis must be put on a shelf and transmit about 50% light.
Cultivation Techniques.
1, choose land preparation. The sandy loam with fertile soil, deep humus and well-drained soil has a slope of 20 or less. Weed out the weeds on the ground, tilled and flattened and made a 1.3-meter-wide sorghum.
2, breeding methods. Coptis reproduces with seeds and propagates seedlings. The seeds are multiplied for production. Harvested immediately after the seeds matured in early May. The seed embryos used have not yet differentiated and must be sown after seed treatment. The seeds were treated with sand and the seeds in the sand began to crack in November and were sown.
3, take shelter. Coptis seedlings are afraid of the sun, they must put a shady shade. The arbours are 70-80 cm high, and the shed can be covered with pine branches.
4, sowing nursery. From October to November, the seed can be sowed after the seeds are cracked in the sand. About 1.5 to 2.5 kilograms per acre can be sown, and 1 cm thick dry fine soil can be covered, and the decomposed beef and horse manure can be used.
5, Miaotian management. Coptis seedlings grow slowly, remove weeds in time, and topdressing quick-acting nitrogen fertilizers. By the end of May, Coptis seedlings can produce three true leaves. In the third year after sowing, it can be transplanted and transplanted. Generally, one kilogram of seeds can breed 100,000 to 200,000 Coptis.
6, transplanting. More than 4 true leaves should be selected, with robust seedlings over 6 cm. Most of transplanting time is in spring and autumn. Spring planting has high survival rate and strong growth. Autumn planting is less than spring planting. Transplanting time is 10 cm 10 cm, about 60,000 plants per acre about seedlings, planting depth of 3 to 5 cm, leaving 3 to 4 large leaves on the ground. After transplanting, according to conventional field management and work management, we must remove field weeds in a timely manner, timely top-dressing, at the same time to cultivate soil, which will help increase production.
7, pest control. The disease of Coptis is relatively rare. In the rainy season, powdery mildew occurs frequently. It can be controlled by conventional methods. Cultivation of Coptis, wildlife, and rats in the mountainous area is a serious hazard to the Coptis and should be guarded.
Harvest processing. Coptis can be harvested 5 years after transplanting, and it is a medicinal plant with a longer growth period. The most suitable harvest time for Coptis is before the freezing in early October and late November. Using a four-tooth rake to excavate Coptis per line, cut fibrous roots and leaves, yielding about 500 kilograms of fresh root per acre. After the fresh roots are unearthed, it is best to use wolfberry to dry. When the drying is not appropriate, the firepower should not be too large. When the drying is completed, it shall be dried till it is dry. Generally, about 100 kilograms of dried rhizome dry rhizome will be produced per mu.
Huanglian is mainly produced in China's Hubei, Sichuan, Yunnan, Shaanxi, Hunan, Zhejiang and other provinces, due to its different production areas and types, Coptis products can be divided into Wei Lian, Ya Lian, Yun Lian points. WeiLian has the largest planting area and is mainly distributed in eastern Sichuan, western Hubei, and southern Shaanxi. Yalian is mainly produced in Hongya County and Ya'an City in Sichuan, and Yunlian is mainly distributed in northwestern Yunnan.
Coptis generally grows in the alpine mountains of 1200 to 1800 meters above sea level, with a pleasant cool and humid climate. In winter, it can normally pass winter within minus 8 °C. Coptis has higher water requirements and is not tolerant to drought. Due to its shallow roots and large leaf area, it requires more water, but it cannot accumulate water. Therefore, it should be drained in time during the rainy season. Rhizoma Coptidis is a plant that grows like a shade and avoids strong direct light irradiation. The light is weak and the light is scared at the seedling stage. Therefore, cultivated Coptis must be put on a shelf and transmit about 50% light.
Cultivation Techniques.
1, choose land preparation. The sandy loam with fertile soil, deep humus and well-drained soil has a slope of 20 or less. Weed out the weeds on the ground, tilled and flattened and made a 1.3-meter-wide sorghum.
2, breeding methods. Coptis reproduces with seeds and propagates seedlings. The seeds are multiplied for production. Harvested immediately after the seeds matured in early May. The seed embryos used have not yet differentiated and must be sown after seed treatment. The seeds were treated with sand and the seeds in the sand began to crack in November and were sown.
3, take shelter. Coptis seedlings are afraid of the sun, they must put a shady shade. The arbours are 70-80 cm high, and the shed can be covered with pine branches.
4, sowing nursery. From October to November, the seed can be sowed after the seeds are cracked in the sand. About 1.5 to 2.5 kilograms per acre can be sown, and 1 cm thick dry fine soil can be covered, and the decomposed beef and horse manure can be used.
5, Miaotian management. Coptis seedlings grow slowly, remove weeds in time, and topdressing quick-acting nitrogen fertilizers. By the end of May, Coptis seedlings can produce three true leaves. In the third year after sowing, it can be transplanted and transplanted. Generally, one kilogram of seeds can breed 100,000 to 200,000 Coptis.
6, transplanting. More than 4 true leaves should be selected, with robust seedlings over 6 cm. Most of transplanting time is in spring and autumn. Spring planting has high survival rate and strong growth. Autumn planting is less than spring planting. Transplanting time is 10 cm 10 cm, about 60,000 plants per acre about seedlings, planting depth of 3 to 5 cm, leaving 3 to 4 large leaves on the ground. After transplanting, according to conventional field management and work management, we must remove field weeds in a timely manner, timely top-dressing, at the same time to cultivate soil, which will help increase production.
7, pest control. The disease of Coptis is relatively rare. In the rainy season, powdery mildew occurs frequently. It can be controlled by conventional methods. Cultivation of Coptis, wildlife, and rats in the mountainous area is a serious hazard to the Coptis and should be guarded.
Harvest processing. Coptis can be harvested 5 years after transplanting, and it is a medicinal plant with a longer growth period. The most suitable harvest time for Coptis is before the freezing in early October and late November. Using a four-tooth rake to excavate Coptis per line, cut fibrous roots and leaves, yielding about 500 kilograms of fresh root per acre. After the fresh roots are unearthed, it is best to use wolfberry to dry. When the drying is not appropriate, the firepower should not be too large. When the drying is completed, it shall be dried till it is dry. Generally, about 100 kilograms of dried rhizome dry rhizome will be produced per mu.
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