A large-scale high-yield cultivation method of bletilla striata

Abstract

The invention discloses a large-scale high-yield cultivation method of bletilla striata, which comprises seedling propagation, seedling hardening, field transplanting, growth period management, next year bletilla striata growth period management and harvesting. The present invention has the advantages of combining microbial technology with ecological planting technology, using EM raw dew to rapidly promote plant growth, decompose drug residues, greatly shorten the planting cycle and improve the output of bletilla striata, compared with traditional Compared with the planting method, the planting cycle of Bletilla striata is shortened by 1 to 2 years, and it can be harvested in 3 years. After harvesting, the rhizome of Bletilla striata is large and bright, and its yield per mu is 2 to 3 times that of traditional rhizome cultivation. The risk of investment is greatly reduced, the investment cost of early planting is low, the economic benefits are quick, and the benefits are high, and there is no pollution.

Description

technical field [0001] The invention belongs to the technical field of planting Chinese herbal medicines, and in particular relates to a large-scale and high-yield cultivation method for bletilla striata. Background technique [0002] Bletilla striata is a perennial herbaceous plant of the genus Bletilla striata in the family Orchidaceae, mainly distributed in Henan, Shanxi, Sichuan, Guizhou, Yunnan and other places in my country. Bletilla striata is used as a tuber, which is recorded in "Shen Nong's Herbal Classic". It has the effects of nourishing the lung, reducing swelling, promoting muscle growth, and stopping bleeding. and other symptoms, in addition, Bletilla striata has gorgeous flowers and is also a good landscape plant. Therefore, the demand for bletilla striata in the market is very strong. In addition, in recent years, wild bletilla striata has been excessively excavated in most parts of my country, resulting in a sharp decrease in its natural resources. It is o...

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Problems solved by technology

Therefore, the demand for bletilla striata in the market is very strong. In addition, in recent years, wild bletilla striata has been excessively excavated in most parts of my country, resulting in a sharp decrease in its natural resources. It is on the verge of extinction and has been listed as a key protected wild plant by the state. One, in order to protect wild Bletilla striata resources, it is imperative to artificially breed and cultivate Bletilla striata. However, although Bletilla striata produces a large number of seeds, because the seeds do not have endosperm, the conditions for germination are harsh, making it difficult for seeds to germinate and grow under natural conditions. , even if seedlings can grow, the seedlings are extremely sensitive to environmental conditions and grow slowly, making the cultivation of Bletilla striata seedlings more difficult

Apparently, the common cultivation method of Bletilla striata mainly adopts rhizome propagation and division propagation. Both of the above two cultivation methods have the characteristics of low yield, poor quality, long planting cycle, low reproduction efficiency, and large seed consumption, and the growth rate is very low. The period is generally more than 5 years, which makes the early planting cost high, the economic benefits are slow, and the risk of investment is high, which seriously restricts the development bottleneck of large-scale planting of Bletilla striata. In addition, long-term multi-generation asexual reproduction is prone to seedling failure. degeneration, the medicinal value of bletilla striata is also weakened