Gastrodia cultivation techniques: What are the causes of reduced Gastrodia yield?

Medicinal Herb Cultivation Jan 1, 1970 0 views

Oh dear, how strange - this year's harvested Gastrodia yield is much lower than in previous years. What are the causes of reduced Gastrodia yield? I hope everyone can give me a heads-up. Thank you very much.

According to the summary by netizens, there are mainly 5 causes of reduced Gastrodia yield, listed in detail below for everyone's reference:

　　Cause one of reduced Gastrodia yield: Armillaria mellea has been subcultured multiple times, becoming aged and degraded:Armillaria mellea is the only source of nutrition for Gastrodia, so the quality of Armillaria mellea directly has an irreversible impact on Gastrodia. In general production, it is required to use pure strains that have been detoxified and isolated, or to cultivate fungus material with such strains before planting, so as to ensure the effect;
However, in order to reduce costs, some farmers either use ordinary strains, or use old fungus material as "seed strains" and mix in some new linden wood to let it "transmit fungus". If pure strains were used the first time, this method can be adopted the following year, but it must not exceed three years. Unlimited continuous "fungus transmission" will inevitably lead to strain degradation and reduced vitality, causing reduced Gastrodia yield.

　 Cause two of reduced Gastrodia yield: Decreased vitality of Gastrodia seeds:In Gastrodia production, hybrid seeds are generally required, just as corn seeds and cabbage seeds all use hybrids for the same reason. Hybrid vigor can allow people to obtain ideal production results; traditional Gastrodia seeds are mostly products of "passing down from generation to generation". To reduce costs, some farmer friends have persistently insisted on self-breeding and self-use, and finally found that the yield was "worse year after year", yet did not know the reason.

Cause three of reduced Gastrodia yield: The cultivation sand is too fine, with poor air permeability:Like other living things, Gastrodia also needs to breathe during growth. Therefore, medium-coarse sand is generally required in cultivation. When directly cultivating with soil, soil with relatively high humus content should be used. If clay soil or very fine sand such as Yellow River sand is used for cultivation, normal growth of Gastrodia cannot be ensured.

　 Cause four of reduced Gastrodia yield: Long-term water accumulation at the Gastrodia planting site:As everyone knows, Armillaria mellea can survive and expand in water, but as a plant, Gastrodia does not have this ability. With only 3 days of water accumulation, Gastrodia can be completely wiped out, either "sucked empty" by Armillaria mellea or directly rotted.

Cause five of reduced Gastrodia yield: Damage from diseases and pests:There are few diseases in Gastrodia cultivation, mainly certain miscellaneous fungi carried on fungus material or linden wood. Together they attack Armillaria mellea and compete for nutrients, so that Armillaria mellea cannot grow normally and Gastrodia cannot absorb nutrients normally, resulting in low yield; pests mainly include underground pests such as white grubs, which bite and eat the hyphae and Gastrodia.
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Gastrodia cultivation techniques: What are the causes of reduced Gastrodia yield?

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