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西洋参原产加拿大和美国,当地的气候温和,空气湿润,降水充足。如美国纽约州年乎均温度为10.1℃,而我省桓仁县(人参产区)年平均温度为6.1℃;纽约州1月份乎均气温-0.9℃,而桓仁为-15.2℃,所以我省人参产区引种西洋参,关键在于搞好越冬防寒工作,若防寒不当,就会造成不同程度的损失,甚至全部冻死。目前省内外比较成功的防寒方法有如下几种:
The origin of American ginseng in Canada and the United States, the local climate is mild, humid air, adequate rainfall. For example, the average annual temperature of New York State in the United States is 10.1 ℃, while the annual average temperature of Huanren County (ginseng producing area) in our province is 6.1 ℃. In New York State, the average temperature in January is -0.9 ℃ and that of Huanren is -15.2 ℃ Introduction of ginseng production areas in our province ginseng, the key is to do a good job overwintering cold work, if improper cold, it will cause varying degrees of loss, and even all frozen to death. Currently more successful cold-proof methods within and outside the province are as follows: