The opening remarks: Artificial cultivation of gastrodia elata has special rules, and the level of technology directly affects the yield of gastrodia elata. Comrade Zhang Youyun of the Ganzhou Tianma Research Institute in Heze City has studied gastrodia cultivation techniques since 1992 and studied with the father of Chinese Gastrodin, the researcher of the Institute of Medicinal Plants of the Chinese Academy of Sciences. Mr. Xu Jintang has developed a set of effective cultivation of gastrodia in practice for ten years. Technology has accumulated rich practical experience. In order to allow more Tianma lovers to learn the techniques of cultivation of gastrodia, the newspaper opened a column entitled “California Cultivation Technique Lecture†from now on, and systematically introduced Zhang Youyun’s scientific research achievements. No matter whether it is in the urban or rural areas, there are many projects for the economic development of courtyards. Among them, planting Tianma is one of the most suitable projects. It has the following advantages: 1. Gastrodia elata is a degraded orchid plant. It has no roots and no chlorophyll. It grows and reproduces by digesting Armillariella, and Armillariella is cultivated by discarded broad-leaved tree rods. Therefore, resources are extremely abundant. 2. After the tree sticks have been cultivated into the fungus sticks, they can be planted directly inside and outside, inside and outside walls, cellars, basements, air-raid shelters, sheds, etc.; earth pits, wooden boxes, plastic boxes, plastic bags, and brick pools can be planted. The method is simple and flexible, and the area can be varied. It does not compete with the crops. Third, it is planted every winter or early spring. Afterwards, it is only necessary to maintain the humidity in the nest. The second winter or spring harvest will be planted at the same time. It does not compete with the crops when they compete for agriculture. Fourth, Gastrodia elata does not compete with crops because it only absorbs nutrients from the fungus and does not require any fertilizer. Moreover, the fungus rod can be used continuously for 2 to 3 years. 5. A total labor force has invested a total of 30 labor days a year. It can grow 100 square meters of gastrodin, and its annual income can reach 10,000 yuan. It is a good sideline with low investment and high income. Sixth, as long as there are bacterial species can be cultured into a rod; as long as there are bacteria sticks can be easily grown into Gastrodia, its technology is very simple. 7. After successfully introducing several nests of Gastrodia elata, the trial will be expanded at a rate of more than ten times per year. In the spring, a small amount of bacterial strains can be cultured and cultured. No need to buy Tianma species. The portion of the expanded area that only invests about 1 yuan per square meter per year is a one-time investment and a good sideline for many years to benefit. To sum up, when planting Tianma in the courtyard and not competing with crops, competing for fertilizers, or competing for agriculture, the technology is simple, the management is convenient, the forms are diverse, the amount can be increased or decreased, the labor intensity is small, the resources are wide, the one-time investment, and the benefits for many years It is a very good courtyard economic development project and is the road to wealth for farmers and laid-off workers in cities.