Gastrodia elata has three main points to grasp for high yield

1. Armillaria mellea should be "three new"

1, new technology: new methods to obtain new strains. The new method uses the latest biotechnology to detoxify strains, which is the most advanced method of obtaining strains so far. Traditional Armillaria mellea species, the best effect is obtained from tissue isolation or spore isolation, the general unit or individual is mostly using the purchased mother species for transformation and expansion, so the cultivation effect is not good.

2. New strains: pure isolated strains within three generations are required. The pure isolated strains referred to in this paper refer to the Armillaria mellea strains detoxified by the latest biotechnology; the third generation refers to the first generation of Armillaria mellea strains detoxified, which are only subcultured once, that is, used to make secondary and tertiary species, and no longer expanded. The traditional Armillaria mellea species is not virus-free, and because of the number of needs, but continuous expansion culture, some even unlimited transfer culture, so that the vitality of the species decreased, serious strain characteristics degenerate, used in production will inevitably lead to hypha cords can not meet the needs of Gastrodia elata growth, cultivation results can be imagined.

3. New fungus material: The cultivation of fungus material should use the oak wood of that year, use the detoxified Armillaria mellea species, after inoculation for about 4 months, make the hyphae go deep into the xylem under the bark of oak wood, the surface looks, the bark is tight, there is no shedding phenomenon, cut open the inspection, the hyphae under the skin are dense, indicating that the cultivation is successful, and then the cultivation can be carried out; when directly using Armillaria mellea species and logs for cultivation, the amount of strain is slightly larger, and the effect is the same. It should be noted that the logs should be broad-leaved tree species, pine, fir, cypress, camphor and other tree species should not be used, as far as possible not poplar, Paulownia and other soft tissue tree species. Fungi used after one year can be used as hypha transmission intervals, not directly as cultivation materials.

Second, hemp seed should be "three high"

1, high technical content: now the latest technology, is to gastrodia elata sexual hybridization, hybridization advantage can make people get the ideal production effect; traditional hemp seed, mostly "generation after generation" produced by small hemp rice, therefore, it is difficult to have a good cultivation effect.

High survival rate: This is one of the first conditions. Hemp seed is best white hemp, single to 10-50 grams is appropriate; the most important thing is that the individual should be complete, no mechanical damage, no disease spots, no pests, etc., to strong light observation, hemp seed transparent, no shadow attachment.

3. High hemp yield: This is the final result of hybrid gastrodia elata seeds. Generally, the yield of ordinary hemp seeds is low, and the maximum yield of 5 kg is good, while hybrid hemp seeds can generally reach more than 20 kg or even higher.

Third, cultivation should be "three needs"

1, to choose a good site: the ideal cultivation site should be warm, humid, do not cold dry or ponding, generally in the wild wasteland, forest gaps, hillside shade and sandy soil, but also make full use of indoor, basement, cave, courtyard, vine hidden open space cultivation, in short, artificially create an environment suitable for the growth of Gastrodia elata, any area can be cultivated Gastrodia elata.

2. Scientific management: Gastrodia elata cultivation technology is relatively simple, education level can learn the basic operation, gastrodia elata after sowing, only humidity, temperature management, but, to adhere to scientific management, specific cultivation management should be achieved: first, the site soil to maintain a certain moisture content, watering in time when dry days; second, the cultivation bed (pool) temperature is not higher than 28℃; third, control moisture, continuous rain to clear the ditch drainage; finally, shade, avoid high temperature rotten hemp.

3, to harvest in time: practice has proved that timely harvest, is a very important link, but this point in the cultivation of gastrodia elata, often easily ignored, and finally lead to "hollow hemp" and other situations; generally in November after the cultivation of gastrodia elata, a year must be harvested, spring cultivation, not to delay the harvest time, so as not to cause rotten hemp, moth, if once the occurrence of bolting, there is no commodity value.