How to prevent low yield of Gastrodia elata

1. The quality of Armillaria mellea is poor.

Most farmers are used to using the old sticks planted last year as bacterial materials, that is, the old sticks plus new sticks to cultivate Gastrodia elata. The quality of the old wood is poor, not only most of the nutrients have been consumed and utilized, the aging phenomenon of Armillaria mellea is serious, but also there are many factors with miscellaneous mold, which not only do harm to the growth of Gastrodia elata, but also destroy the environmental conditions for the growth of Armillaria mellea. So that Armillaria mellea source can not provide good nutrition to Gastrodia elata, resulting in low yield and even no harvest.

II. Application of multi-generation species with degenerated species

Gastrodia elata is planted with its vegetative organs (Whitehead or rice hemp). Some farmers use Gastrodia elata seeds for many generations all the year round without seed selection, and the thin seeds with bird head shape, whip shape and long branch mouth are also used for cultivation. As the regeneration ability of Gastrodia elata tuber itself weakens from generation to generation, the reproduction coefficient declines year by year, and its unit yield decreases year by year.

Practice has proved that when Gastrodia elata was introduced for the first time, the annual unit yield of Gastrodia elata was the best by propagating new fungus materials, and the unit yield of Gastrodia elata was reduced by 30% and 50% by using the old sticks planted last year as fungus materials.

Effective ways to prevent and cure low-yield Gastrodia elata

1. Select high-quality breeding materials to select secondary and tertiary production of high-quality bacteria or choose branches and sticks with exuberant growth, no impurities and no mildew. According to the operation technology of cultivating and propagating bacterial materials, prepare bacteria for reproduction. When propagating mushroom material, use 10% water of potato mushroom, that is, peel the mushroom, slice and boil for 25 minutes, clarify or filter. Add 1% glucose (edible white granulated sugar is also OK), hard soak or wet sticks, sticks can be quickly inoculated, so that Armillaria mellea growth is exuberant, high-quality fungus. If you need to make use of the old sticks planted with Gastrodia elata last year, you must select hard old sticks with no miscellaneous mold and bright glossiness on the surface to cultivate Gastrodia elata. The quality of Armillaria mellea material is good, which can make Gastrodia elata multi-inoculated, absorb more nutrition and more high yield.

two。 Prevention and control of miscellaneous mold infection

① site clean no other miscellaneous mold, no pollution and no pollution source; ② soil sandy, permeable, breathable, and can heat preservation and drought prevention; ③ no human and animal trample; ④ selection of hard trees with good inoculation rate and resistance to miscellaneous mold, such as white chestnut and cherry trees; ⑤ increase the amount of strains or materials, can enhance the inoculation rate; ⑥ according to Gastrodia cultivation technical requirements, select a good forest farm base conducive to the growth of Gastrodia elata and Armillaria mellea.

3. Citing high-quality flax farmers had better spend some cost in production, citing sexual reproduction of flax seeds or short production generations of hemp seeds.