Four steps to high yield in Tianma cultivation

Gastrodia elata is a precious traditional Chinese medicine, the price broke hundred. Gastrodia elata planting has become a hot planting for drug farmers. How to plant Gastrodia elata to achieve high yield and quality is also very important in addition to heaven and geography. So, what aspects of Tianma cultivation should be controlled?

First, Tianma planting should control the light:

Gastrodia elata from planting to harvest should avoid direct sunlight, when sunlight should be set up to cool down, to ensure the normal growth of Gastrodia elata tubers, so artificial cultivation of Gastrodia elata mostly in indoor, basement, greenhouse, at the same time set up shed cooling, to ensure the normal growth of Gastrodia elata tubers.

Second, Tianma planting should control the temperature:

Temperature control is the key to cultivation and management of Gastrodia elata. The suitable germination temperature of gastrodia elata seeds is 22℃~25℃. If the initial temperature of sowing is low, plastic film or straw should be covered to increase the ground temperature. The optimum growth temperature of Gastrodia elata is 15 to 25℃. When it exceeds 30℃, the growth of Armillaria mellea and Gastrodia elata will be severely inhibited; when it is lower than 15℃, the growth rate of Gastrodia elata tubers will be inhibited or even stopped; when it is lower than 5℃, it will be frozen. Summer should pay attention to prevent high temperature and drought, can build shade shed or sprinkle cooling, pay attention to sprinkling best choose after sunset, soil temperature drops. In winter, it is necessary to freeze. In areas below 1000 meters above sea level, 10-20 cm thick branches and leaves and weeds can be covered after planting; in areas above 1000 meters, the cover can be thickened to 30 cm.

Third, Tianma planting should control humidity:

Generally, the average relative humidity is required to be controlled at about 80%, and the sand planted is kept wet frequently, so as to sprinkle frequently, sprinkle less, and prefer drought to waterlogging. 4-6 Monthly control of soil moisture up to about 60%, June to August is the growth season of Gastrodia elata, appropriate water conservation and cooling, moisture conservation and drainage, if the humidity is lower than 60%, is not conducive to the growth of Gastrodia elata, higher than 80%, easy to cause tuber rot. September is the later stage of nutrient accumulation of Gastrodia elata, reaching physiological maturity stage, soil moisture should be controlled below 40%, soil temperature has dropped to 10℃ in late October, Gastrodia elata enters dormant period, can be dug up.

Fourth, Tianma planting should pay attention to pest control:

The main pests are white ants, clams, grubs and so on. When cultivating gastrodia elata, 5% chlordane powder and other chemicals can be spread around the bed; or traps can be used to trap white ants.

Gastrodia elata planting is a technical activity, from the cultivation of closed-loop bacteria species, bacteria materials to sowing hemp seeds to harvest, it generally takes more than 1 year, master the growth habits of Gastrodia elata, do these four steps well, it is possible to produce high yield.

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