Management of Gastrodia elata cultivation in summer and autumn
In summer and autumn, Gastrodia elata enters a period of exuberant growth and maturity, and it is also a key period of production management of Gastrodia elata.
1. The gutter drains moisture. When Gastrodia elata enters the vigorous growth period, it is necessary to check whether the drainage ditch of the cultivation site is stagnant and unblocked. The water content of the soil can be as low as 65%. The three months of July, August and September are the period when Gastrodia elata needs the most water. During this period, the drainage ditch must be checked and cleaned in time to avoid stagnant water.
2. Cover the technical measures of moisturizing and cooling. Cover with deciduous broad-leaved trees (pine, cypress, camphor and other leaves can also be used), grass, hairy grass is the best, rice straw, corn stalk and so on can also be used.
3. Weeding and drought resistance. In the summer and autumn festival, in case of drought, weeds evaporate a large amount of water, which aggravates the drought, leading to the lack of water in Armillaria mellea and Gastrodia elata.
4. Apply pesticides to control diseases and insect pests. The prevention and control of diseases and insect pests of Gastrodia elata mainly adopts the method of integrated control. Such as changing three old (old material, old hemp seed, old nest son) to three new (new fungus material, new kind of hemp, new nest son). When checking for termites and other pests, traps should be taken to kill the insects. For example, burying pine beside the cultivation ditch box to lure termites to concentrate on killing.
5. Increase production by adding nutrition. Gastrodia elata does not need nutrition during its growth period. In recent years, some people have sprinkled potato liquid into the cultivation hole of Gastrodia elata and found that it can increase the yield by 10%.
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Microclimatic environment of Gastrodia elata cultivation
Gastrodia elata, also known as red arrow, Dingfeng grass, water potato, etc., is a famous Chinese and foreign precious medicinal materials, known as the "king of medicinal materials", with high medical and health care value. Gastrodia elata is usually referred to as its dry tuber. In terms of plant taxonomy, Gastrodia elata belongs to perennial herbs of Orchidaceae, but it is different from the green plants we often say, its plant is a fleshy single seedling, yellowish red, rootless, no green leaves, can not carry out photosynthesis. Throughout the period of growth and development, it must be associated with a so-called "dense ring"
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Cultivation of sexual Gastrodia elata at low altitude
In nature, the distribution and cultivation area of Gastrodia elata is more than 700 meters above sea level. Gastrodia elata blossoms and bears fruit in mid-late June, and the sexual seeds sown can only grow to 4cm in that year. For example, when sexual Gastrodia elata seeds are cultivated at a low altitude of about 200 meters, Gastrodia elata blossoms and bears fruit in the first and middle of May, and the seeds sown can grow to 6cm and 8cm that year. Over the years, we have cultivated sexual Gastrodia elata in a large area at a low altitude of 100 meters, planted at a high altitude, and achieved good benefits. 1. Harvesting and transplanting of Arrow hemp
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