Planting technology of cohosh? What is the yield per mu?

Cohosh generally grows in warm and humid places, such as in mountain forests or in grass on hillsides. Cohosh is a kind of traditional Chinese medicine, which can detoxify, so how to plant it? Planting technology of cohosh? What is the yield of cohosh per mu?

1. Planting technology of cohosh?

1. Soil preparation and fertilization. Artificial cultivation of cohosh should choose loam with deep soil, good drainage, loose and fertile, sunny loam, sandy loam or humus loam as bed. 2000 kg of farm manure is applied per mu. The use of large ridge high bed technology, bed width 130-140 cm, length depending on the need, bed height 10-12 cm, bed spacing 30 cm.

two。 Reproductive technology.

(1) Live broadcast. It can be in both spring and autumn. From late April to mid-May in spring, when sowing seeds, ditches are opened along the border according to the row spacing of 20-25 cm, the ditch depth is 4-5 cm, the seeds are evenly sowed in the ditch, covered with fine soil 1.5-2 cm, slightly suppressed, watered thoroughly, and the border surface is covered with a layer of straw to moisturize. Autumn is from mid-October to early November, and the sowing method is the same as that in spring.

(2) Seedling and transplanting. When the seedlings were transplanted after growing for one year, the holes were opened according to the plant spacing of 40 cm, row spacing of 50 cm and hole depth of 15 cm. One seedling was planted in each hole, covered with 4-5 cm top bud and watered once after planting.

3. Field management.

(1) weeding by ploughing. Weeding should be done frequently in the seedling stage, and the weeding depth should be shallow to prevent damage to the rhizome.

(2) topdressing. Combined with loosening soil and weeding, appropriate amount of nitrogen fertilizer was applied according to seedling growth from June to July. The 2-year-old cohosh has less fruit and poor seed quality. the inflorescence can be cut off at the early stage of flower bud to facilitate the growth of rhizome. From then on, ploughing and weeding will be done 1-2 times a year.

(3) irrigation and drainage. In case of drought, it is necessary to water in time, keep the soil moist, and pay attention to timely drainage and waterlogging in the rainy season, so as to avoid rotting roots and dead seedlings and reduce yield and quality.

(4) removing buds. Inflorescences can be cut off at the initial stage of flower buds to facilitate rhizome growth.

Second, what is the yield per mu of cohosh?

Cohosh is mainly produced in Liaoning, Jilin, Heilongjiang, Hebei, Shanxi, Shaanxi, Sichuan, Qinghai and other provinces. The yield of cohosh may be based on the actual situation.

The growth of cohosh can be harvested for 4 years, and the harvest season is mainly in autumn. When harvesting, you should choose a sunny day, first cut off the withered branches, stems and leaves above ground, dig out the roots, remove the soil, wash them, use fire to remove the fibrous roots when the sun is 80% dry, and then dry them all to remove the epidermis and the remaining fibrous roots. About 200 kilograms of dried medicinal materials can be produced per mu.

However, there are still some changes in cohosh every year. This year, the new production of cohosh is relatively low, the overall volume of goods used in the market remains unchanged, and the movement of the market is relatively compact. In addition, its new goods have not yet come down, and with the continuous reduction of the supply of goods, its prices have rebounded steadily. At present, the price of goods in Northeast China is 36 yuan, and that of North Korean goods is about 22 yuan.