How to grow Gastrodia elata for high yield? Detailed high-yield cultivation techniques
How can Gastrodia elata be grown for high yield? What should be noted? Netizens are asked to help introduce it. Zhongdi Network has compiled three methods for high-yield Gastrodia elata, listed below for netizens to study and reference. Method 1: Improvement starting from Armillaria mellea. 1. Use Gastrodia elata strains cultivated by a new method: the new method produces new strains...
How can Gastrodia elata be grown for high yield? What should be noted? Netizens are asked to help introduce itZhongdi Network has compiled three methods for high-yield Gastrodia elata, listed below for netizens to study and reference.
Method 1: Improvement starting from Armillaria mellea
1. Use Gastrodia elata strains cultivated by a new method:
The new method produces new strains. The new method uses the latest biotechnology to detoxify the strains, and this is so far the most advanced method of obtaining strains. Among traditional Armillaria mellea strains, those obtained by tissue isolation or spore isolation have the best effect. Most units or individuals use purchased mother cultures for subculturing and expansion, so the cultivation effect is poor.
2. Select new strains:
The requirement is pure isolated strains within three generations. The pure isolated strains referred to in this article mean Armillaria mellea strains that have been detoxified using the latest biotechnology; three generations means the first detoxified generation of Armillaria mellea is subcultured only once, that is, used to make secondary and tertiary spawn, and is no longer further expanded.
Traditional Armillaria mellea strains are not detoxified, and due to quantity needs, they are continuously expanded and cultured, some even subcultured without limit, which reduces strain vigor, and in severe cases causes strain characteristics to degenerate. After being used for production, the mycelium and rhizomorphs inevitably cannot meet the needs of Gastrodia elata growth, and the cultivation result can be imagined.
3. Select new strain cultivation material:
For the cultivation of fungal wood, oak wood of the current year should be used, and detoxified Armillaria mellea strains should be used. After inoculation, about 4 months are needed for the mycelium to penetrate into the xylem under the oak bark. On the surface, the bark is firm and does not fall off; when cut open for inspection, the mycelium under the bark is dense, indicating successful cultivation, and cultivation can then proceed; when directly using Armillaria mellea strains and log segments for cultivation, the amount of strain used is slightly larger, and the effect is the same.
It should be noted that the log segments should be broadleaf tree species, and pine, fir, cypress, camphor and other tree species must not be used. Try not to use tree species with soft tissue such as poplar and paulownia. Fungal wood that has been used for more than one year can be used as an interval material for transmitting mycelium, and should not be directly used as cultivation material.
Method 2: Improvement starting from the selection of Gastrodia elata seed
1. Use Gastrodia elata seed with high technical content:
The latest technology now is sexual hybridization of Gastrodia elata, and hybrid vigor can enable people to obtain ideal production results; traditional seed is mostly just small seed tubers produced by "passing from generation to generation," so it is difficult to achieve good cultivation results.
2. Use Gastrodia elata seed with a high survival rate:
The seed is best white seed, with a single one preferably 10-50 g; most importantly, the individual must be complete, without mechanical damage, without disease spots, without pests, etc. When observed against strong light, the seed is transparent throughout, with no shadow attached.
3. Select Gastrodia elata seed with high tuber yield:
This is the final result of hybrid Gastrodia elata seed. Generally, ordinary seed has low yield, and a maximum harvest of 5 kg is already good, while hybrid seed can generally reach more than 20 kg, or even higher.
Method 3: Improving yield from the cultivation aspect
1. Choose a suitable planting site:
The ideal cultivation site should be warm and moist, not cold and dry or waterlogged. Generally, it can be in wild wasteland, gaps in forests, the shady side of hillsides and sandy soil land. Indoor spaces, basements, cave dwellings, courtyards, and open spaces shaded by vines can also be fully used for cultivation. In short, by artificially creating an environment suitable for Gastrodia elata growth, Gastrodia elata can be cultivated in any region.
2. Carry out scientific management:
Gastrodia elata cultivation techniques are relatively simple, and people of any education level can learn the basic operations. After sowing Gastrodia elata, only humidity and temperature management are needed.
However, scientific management must be adhered to. The specific cultivation management should achieve the following: first, the site soil must maintain a certain moisture content, and water promptly during drought; second, the temperature in the cultivation bed (pond) must not be higher than 28°C; third, control moisture, and clear ditches for drainage during continuous rain; finally, build a shed for shade to avoid high-temperature rot of Gastrodia elata.
3. Harvest Gastrodia elata at the right time:
Practice has proved that timely harvesting is a very important step, but in Gastrodia elata cultivation this point is often easily overlooked, ultimately leading to situations such as "hollow seed"; generally, Gastrodia elata cultivated after November must be harvested after one year. For spring cultivation, even more do not delay the harvest time, so as to avoid rotten seed and insect damage. If bolting occurs, it has no commercial value.
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