High-yielding Cultivation of Gastrodia elata

With the implementation of the national strategy for the development of the western region, a modernization industry for Chinese medicine has been established accordingly. Guizhou is located in the western region. Soil, climate, vegetation and other environmental conditions are suitable for the growth of Gastrodia. From 2001 to 2003, he introduced and planted experimental demonstrations in Luochang Township and Yongyi Township, Yinjiang County. According to the experimental situation and existing problems, the five main points of high-yield cultivation should be noted.

First, the production requirements of Tianma species. The high-quality Fanjing wild “Jianma” was sowed in mid-February and late. It was sown indoors in a 2525 cm planting space in a box of disinfected river sand (box size is 4 meters long, 1 meter wide and 0.2 meters thick. After 30 days of dormancy, 30 days of dormancy, 20 days of unearthing, growth of stem moss, bud emergence, cross-pollination of different plants from 9:00 am to 5:00 pm in accordance with the operating procedures, seeds should be sown immediately after germination, (Due to the absence of stored endosperm for gastrodia seeds) 10 seeds were sown by 0.5 kg germination bacteria.

Second, the choice of production zone. To choose slightly acidic soil zone between 850-1800 meters above sea level.

Third, the production of bacteria materials. In late August to mid-September, use broad-leaved trees or corncobs to grow 50-60 cm, blow the fish phosphorus mouth every 3-5 cm, deep wood, cut two rows, after 2 days of drying, the control cabinet (Deep 60 Centimeter, width 100 centimeters, length 200 centimeters) The bottom of the carton is loosened and covered with about 5 centimeters of sandy loam soil (making it loose, breathable, diluting). Then pave the wood (fish scales up or side) will be purchased from high quality honey fungus production Sowing at the mouth of the scales, fill the gaps with humic soil, cover 2-3 cm of fine humus, pave the second, third and upper layers in the same way and cover with 10 cm of humus soil, then cover Keep grass or leaves warm, and make drainage ridges.

Fourth, Gastrodia specific cultivation points

1, timely planting. It is one of the keys to increase production. It is appropriate to plant in the dormant period (November in the next year in November) and the highest yield is obtained. Note: (1) Can not be planted below 0°C, (2) Accurately grasp the best period of dormancy period and the growth of Armillaria mellea, so that the refrigerated gastrodia can obtain the nutrition of Armillaria mellea.

2, hemp seed selection and use of species. Must choose the type of sexual gastrodin and fresh, no pests and diseases, non-invasive zero-generation or 1-2 generation of high-quality white hemp, rice and ramie as a species, the amount of seeds per square need 500 grams of large white hemp, (or small white linen 300 grams , Or about 200 grams of rice hemp).

3, the amount of bacteria. Per square meter (single layer) dosage 20-30 kg.

4, soil preparation box cultivation. Flatland high boxes, lowland slopes, specifications 1000100020 cm, after construction, spread 3 cm thick sandy loam soil, and then put the cultured good bacteria sticks and wood in a 1:1 manner, placing them in parallel with 5-18 cm, (Note : 15-18cm of rice, 10-15cm of rice, 10-8cm of rice, and 5-8cm of rice and jute) The humus will be filled with broad-leafed twigs. Timely attachment of Armillaria mellea) should be placed in the same direction (grew growth space that is always fan-shaped and extends forward). Put the humus in the filling material, cover 10-15 cm, cover litter or grass, and then Finish the side ditch.

Note: (1) Do not disinfect with lime to increase soil alkalinity and inhibit the growth of Armillaria. (2) The cultivation site cannot be continuous, and the cultivation site should be rotated (the secretion of the bacterium may resist the growth of gastrodia, causing excessive miscellaneous germs and causing deterioration of the gastrodin). (3) No hormones (fertilizers, sugars) and other pesticides can be applied. Insect hazards are mechanically captured, which is conducive to the development of modern Chinese medicines.

V. Harvesting and processing. Gastrodia in the dormant period to harvest high efficacy. Sexual reproduction is harvested at the end of October of the second year and should be handled gently to avoid planting rot after the stems of the stems are damaged. Seeds and commodities are packed separately. Mica and white hemp can be immediately sown or stored and then sown in late February of the following spring. Arrows should be graded and processed. When processing, the size is the same, wash with clean water in the 70-80 °C oven drying, must not use fresh sulfur steam, affecting gastrodin content and quality.

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