High-yield standardized cultivation method of bletilla striata

Abstract

The invention relates to a high-yield standardized cultivation method of bletilla striata. The high-yield standardized cultivation method comprises the steps of soil selection and preparation, seedling breeding, seedling hardening, field transplantation, field management, management of bletilla striata growing period in the next year, harvesting and processing, wherein the seedling breeding comprises the steps of seed selection and seedling growing, and the field management comprises the steps of intertillage weeding, nutrient and water management, and pest control. The invention provides the high-yield standardized cultivation method of bletilla striata which is short in plantation period, low in cost, low in risk and high in reproduction rate, and quality of the bletilla striata can be effectively guaranteed, the plantation period is largely shortened and yield of the bletilla striata is increased, compared with a traditional plantation method, the plantation period of the bletilla striata is shortened by 1-2 years, the bletilla striata can be harvested after being planted for 3 years, the harvested bletilla striata rhizome is large in size and normal in corlor, and the yield of the bletilla striata per mu is 2.5-4 times of that of bletilla striata by a traditional rhizome cultivation method.

Description

technical field [0001] The invention belongs to the technical field of cultivation of Chinese herbal medicinal materials, and in particular relates to a high-yield standardized cultivation method of bletilla striata. Background technique [0002] Bletilla striata, also known as Baiji, Lianjicao, dry root, purple orchid, etc., is a perennial herbaceous bulbous plant of Orchidaceae. It grows in the evergreen broad-leaved forest at an altitude of 100-3200m. It likes a warm and humid habitat and is slightly cold-tolerant. . Mainly distributed in Shaanxi, Jiangsu, Guizhou, Guangxi, Sichuan, Zhejiang, Shanxi, Yunnan and other places. Bletilla striata, as a kind of precious Chinese herbal medicine, is used as a medicine with tubers. It contains bletilla striata polysaccharides, bibenzyls, dihydrophenanthrenes and phenanthrenes. It has been recorded in "Shen Nong's Materia Medica" as early as "Shen Nong's Herbal Classic". Muscular and hemostatic effects, used to treat tuberculosis...

AI Technical Summary

Problems solved by technology

[0003] 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 have no endosperm, the germination conditions are harsh, making it difficult for the seeds to germinate and grow under natural conditions. Seedlings grow, and 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. degradation, the medicinal value of the cultivated bletilla striata is also weakened

The existing cultivation technology of bletilla striata has problems such as low reproduction coefficient, large consumption of seedlings, low yield, high production cost, poor disease resistance, and degradation from generation to generation, which can no longer meet the needs of the market