A soilless green seedling raising method of Astragalus membranaceus

Abstract

The invention relates to a radix Astragali soilless green seedling growing method comprising the following steps: building a greenhouse, preparing a seedling growing bed, carrying out seed insect disease prevention, carrying out seed rapid synchronical germination, sowing and seedling growing, seedling stage management, and digging and transplanting seedling; in addition, a special nutrient solution is employed so as to enable the Radix Astragali seeds to germinate in the same day of being sowed in the seedling growing bed, the germination capacity can reach 96% in the 12th day, thus greatly improving germination capacity, and improving seedling regularity; the method is convenient in greenhouse management, good in seedling quality, basically has no insect disease and soil borne disease, can obtain above 99% of Radix Astragali seedling with healthy root and no-bifurcation, wherein the root length of annual Radix Astragali seedling can be 46cm, the annual mu yield of one-year-one-crop mode can be 4500-5000kg, and the mu yield of each crop in a one-year-two-crop mode can reach 3500-4000kg, thus greatly improving production efficiency, reducing Radix Astragali seedling cost, realizing modernization, standardization and large scale high efficiency green production of the Radix Astragali, and providing key support for the Radix Astragali industry.

Description

technical field [0001] The invention relates to the technical field of agricultural economic crop breeding, in particular to a soilless green seedling raising method of Astragalus membranaceus. Background technique [0002] Astragalus and ginseng are both good Qi-invigorating medicines in traditional Chinese medicine. There is a popular saying among the people that "drink Astragalus soup often to prevent diseases and maintain health". Modern medical research shows that astragalus can enhance the body's immune function, protect the liver, diuresis, anti-aging, anti-stress, lower blood pressure and a wider range of antibacterial effects, can eliminate experimental nephritis proteinuria, enhance myocardial contractility, regulate blood sugar levels, Astragalus can not only dilate coronary arteries, improve myocardial blood supply, improve immune function, but also delay the process of cell aging. Astragalus is easy to eat. It can be decocted in soup, decocted paste, soaked in ...

AI Technical Summary

Problems solved by technology

[0003] In recent years, the scale of industrial planting of Astragalus membranaceus has been expanding year by year, but the scale and technology of Astragalus membranaceus seedlings are seriously lagging behind. At present, it is generally still in the traditional extensive original seedlings and planting stage.

Almost all the Astragalus seeds left in the Chinese market are semi-wild, that is, domesticated from wild Astragalus. So far, no new varieties or transgenic Astragalus varieties have been bred in the world. Tests have proved that the seed coat of Astragalus membranaceus is very hard, and the development of the embryo is very slow. Traditional seedling cultivation is time-consuming, laborious, and drought and floods are not guaranteed. The germination rate of new Astragalus membranaceus seeds (without any treatment) is generally 43.7-30 days after sowing. 53.2%, the genetic difference of individual seeds is very large. At present, astragalus seedling enterprises often use warm water soaking at 60-70°C for 24 hours. Although it can increase the germination rate, some can reach about 90%, but the emergence time is uneven. Generally, it takes 30-50 days to reach about 90% emergence rate

Due to the large difference in seedling emergence time, the seedling conditions in the same plot vary greatly, which brings troubles to seedling care, and the seedlings have high incidence of disease, poor quality, flooding of soil-borne diseases, uneven individual growth, and low yield.

Due to production needs, "continuous stubble" planting is usually used, so a large amount of chemical fertilizers and pesticides have to be used, resulting in serious damage to soil micro-ecology, quality degradation, and excessive "pesticide residues"

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