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Key Technical Points and Methods for Gastrodia elata Management in Winter and Spring

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After November, as temperatures gradually drop, the new Gastrodia elata tubers stop growing, their size becomes fixed, and they enter dormancy directly, so low-temperature freezing damage should be prevented. In particular, the arrow tubers (Jianma) are easily damaged by freezing during overwintering. It is best to use arrow tubers for medicinal purposes when harvesting Gastrodia elata in winter, and to sow or store the small tubers (Mima) and white tubers (Baima) in time for spring planting. If they are not harvested in winter, cold-protection measures must be taken before freezing, such as covering with tree leaves to keep warm and prevent freezing, and removing them the following spring to facilitate growth. The temperature should be maintained at 1-5°C, and the humidity should be maintained at 30%.

After November, as temperatures gradually drop, the new Gastrodia elata tubers stop growing, their size becomes fixed, and they enter dormancy directly, so low-temperature freezing damage should be prevented. In particular, the arrow tubers (Jianma) are easily damaged by freezing during overwintering. It is best to use arrow tubers for medicinal purposes when harvesting Gastrodia elata in winter, and to sow or store the small tubers (Mima) and white tubers (Baima) in time for spring planting.

If they are not harvested in winter, cold-protection measures must be taken before freezing, such as covering with tree leaves to keep warm and prevent freezing, and removing them the following spring to facilitate growth. The temperature should be maintained at 1-5°C, and the humidity should be maintained at 30%.

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