Cultivation method for improving quality of astragalus

Abstract

The invention discloses a cultivation method for improving the quality of astragalus. The cultivation method includes performing light quality processing on 3-6 perennial astragalus on the basis of semi-wild cultivation management for conventional artificial seed sowing assisted reproduction and growth; constructing film supports in astragalus fields when the heights of growing plants reach 30cm from the last third of May to the beginning of June in a growing period; covering the astragalus by blue films for a growing season until leaves of the astragalus fall; conventionally managing the fields until the astragalus is harvested. The wavelength of blue light of the blue films ranges from 400nm to 450nm, the wave crest of the blue light is 420nm, and the light transmittance of the blue films is 85%. The cultivation method has the advantages that the cultivation method is simple, and the investment cost is low; the accumulation of flavone in roots of the astragalus is increased by 15% after the blue films cover the astragalus and the astragalus is processed as compared with a natural light condition on the premise that the dry weights of the roots of the astragalus are not obviously changed, the accumulation of saponin in the roots of the astragalus is increased by 6.5%, accordingly, the quality of the astragalus is obviously improved, and an input-output ratio of the cultivation method reaches 4.5 times at least.

Description

Technical field

[0001] The invention involves the field of astragalus cultivation technology, especially by changing the cultivation method of improving the quality of astragalus by changing the quality of the light. Background technique

[0002] Astragalus, also known as Mianqi, is a perennial herb, is mainly produced in Inner Mongolia, Shanxi, Gansu, Heilongjiang and other places in my country.Astragalus is a plant and plant. Its medicinal medicine has a history of more than 2,000 years.Astragalus is warm, sweet, slightly warm, and returns to the lungs, spleen, liver, and kidney meridians.Astragalus is beneficial to qi and solid surface, sweat solidifiers, sores and muscle, diuretic swelling effects.It is used to treat qi deficiency and weakness, medium qi sinking, long diarrhea deserture, blood collapse, ducts and sweating, gangrene difficulty, long collapse, blood deficiency and yellowing, internal heat and thirst, chronic nephritis, proteinuria, diabetes, etc.Increase the qi...

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