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Technical points for cultivating Gastrodia elata with rice husk culture medium
Rice husk is a good "soil" ingredient for culturing Armillaria mellea and cultivating Gastrodia elata in plain areas. The "soil" it forms, namely the filler, is loose, well aerated, has good water permeability and is rich in nutrients, which is beneficial to the growth of Armillaria mellea. The rhizomorphs on the fungus branches and fungus wood cultured with it are thick and vigorous, and the Gastrodia elata cultivated with them grows well. The method is: (1) Rice husk fungus substrate culture: use 1 part rice husk and 1 part yellow sand (volume ratio 1:1) or 3 parts rice husk and 2 parts yellow sand, add water and mix thoroughly, humidity 40%
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How much does the base growing medium affect Gastrodia elata yield?
At present, the base growing media used for cultivating Gastrodia elata vary from place to place. In the Hanzhong area of Shaanxi, river sand is mostly used as the base growing medium, while in the Tonghua area of Jilin, humus soil is mostly used as the base growing medium. Some also use broadleaf tree sawdust mixed with sand or rice husk mixed with sand as the base growing medium. The biggest advantage of sand as a growing medium is good water permeability, but it contains very few nutrients; choosing humus soil made of semi-decomposed fallen leaves as the growing medium is better, but the black soil from the lower layer must not be mixed in. Production practice has shown that sawdust mixed with sand, rice husk mixed with sand, and semi-decomposed
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