Method for secondary domestication of rhizoma picrorhizae

Abstract

The invention discloses a method for secondary domestication of rhizoma picrorhizae. The method comprises the steps of S1 primary domestication, S1(I) seed selection, S1(II) greenhouse arrangement, S1(III) planting, and S1(IV) greenhouse management; S2, secondary domestication, S2(I) land selection, S2(II) land arrangement, S2(III) transplanting, and S2(IV) field management, wherein after transplanting is performed one month, weeding is performed one time every month, topdressing is performed one time every spring and every autumn, topdressing and weeding soil loosening are performed jointly,and a mixing solution with the ratio of 30 mL / L monopotassium phosphate to 0.5 mL / L gibberellin being 1.5:1 is adopted for applying fertilizer to the root of rhizoma picrorhizae; when a diseased or infected plant is found, the diseased or infected plant is pulled out, and 0.1-0.3 kg of quick lime is applied to the diseased hole. The method has the advantages that wild rhizoma picrorhizae which isoriginally suitable for growing at the 3,900-4,500 m high altitude region with severe survival environment can grow at the mountain region where the growth altitude is lowered to 2,500-3,000 m, the survival rate of the high altitude region wild rhizoma picrorhizae obtained after artificial domestication cultivation reaches 80% or more, and growth is good.

Description

technical field [0001] The invention relates to the technical field of traditional Chinese medicine cultivation, in particular to a method for secondary domestication of Coptis chinensis. Background technique [0002] Huhuanglian is a perennial herb of the genus Huhuanglian in the family Scrophulariaceae. It is a medicinal material officially included in the national pharmacopoeia, and it is also a national second-class protected plant. Huhuanglian is an important ethnic medicinal material that has been used by the Nu, Tibetan, Lisu, Naxi and other ethnic minorities for hundreds of years, and it is also an important raw material for various Chinese patent medicines. The distribution area of ​​wild Coptis chinensis is narrow, and its origin grows in the high altitude area of ​​3900-4500 meters. The living environment is harsh and its natural reproductive capacity is relatively weak. Due to long-term over-exploitation, wild resources are on the verge of extinction and cannot ...

AI Technical Summary

Problems solved by technology

Due to long-term over-exploitation, wild resources are on the verge of extinction and cannot meet the needs of the market

Therefore, artificial planting has become an inevitable choice to solve the shortage of Huhuanglian resources. At present, there are precedents for domesticating wild Huhuanglian, but the survival rate after domestication is not ideal, and it can only be planted within a specific range of altitude.

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