随着人工栽培技术的不断改进,天麻已由高山野生逐步地引种到城市防空洞内栽培。洞内栽培天麻,具有温度适宜,生长周期短(比洞外可缩短一半的生长期),湿度容易控制,病虫害易于防治,产量高等特点,是城市利用人防地洞发挥经济效益的好途径。我厂80年开始在防空洞内种植天麻,年产量平均在200公斤左右,每平方米最高产量达25公斤。一、栽培前把好三关 With the continuous improvement of artificial cultivation techniques, Tianma has been gradually introduced from the wild mountain to urban air-raid cultivation. Gastrodia cultivation in the cave, with a suitable temperature, short growth cycle (shorter than the hole can be shortened by half the growth period), easy to control humidity, pests and diseases easy to control, high yield, is the city to use civil air defense cave to play a good economic way. Gastrodia elata plant began in our 80 years, the average annual output of about 200 kilograms, the highest yield of 25 kilograms per square meter. First, the cultivation of a good three off