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本文介绍了位于内陆腹地的青海高原5年来西洋参引种栽培的主要技术。在生长季温度较低的高原地区,能完成生育全过程,生长期为170天,至果熟期总积温2053℃,略低于我国东部地区.在极端最低气温-26.0℃条件下保留荫棚,床面不覆盖越冬,1年保苗率为36.6%,2年保苗率为100%,内陆高原大多为碱性地,育参也取得一定成果,但以接近中性的森林土效果较佳,并进行了改土育参的尝试。由于高原地区前棚下夏季温度较低,对光照最大强度的承受力高于东部地区,在不超过1.7万1x的幅度内,适当提高光照强度可提高参苗生长量。
This article describes the main techniques for the introduction and cultivation of American ginseng in the hinterland of the Qinghai Plateau in the past five years. In the plateau area where the temperature is lower in the growing season, the whole process of fertility can be completed. The growth period is 170 days, and the accumulated temperature is 2053 ℃ in fruit maturity stage, slightly lower than that in eastern China. In the extreme minimum temperature of -26.0 ℃ to keep the shade under the conditions of the bed does not cover the winter, one year seedling protection rate of 36.6%, 2 years seedling protection rate of 100%, most of the inland plateau alkaline, fertile Some achievements have been made, but the effect of forest soil close to neutrality is better and the attempt of soil improvement and fertilization is carried out. As the summer before the greenhouse under the roof of the plateau region is lower, the maximum light intensity of the endurance is higher than the eastern region, in the range of not more than 17000 1x, the appropriate increase in light intensity can increase the seedling growth.