收稿日期: 2004-04-06
修回日期: 2004-06-10
网络出版日期: 2005-03-15
基金资助
国家科技攻关计划课题(2001BA901A47);中共中央组织部、中国科学院“西部之光”和青海省重大科技招标项目(2001N10702)联合资助
Studies on Mineral Elements for Cultivated Rheum in Daheigou, Qinghai Province
Received date: 2004-04-06
Revised date: 2004-06-10
Online published: 2005-03-15
李天才 , 陈桂琛 , 周国英 , 孙菁 . 青海省大黑沟种植大黄中矿物质元素研究[J]. 中国科学院大学学报, 2005 , 22(2) : 226 -229 . DOI: 10.7523/j.issn.2095-6134.2005.2.016
Rheum is called “Xining Dahuang”, which are traditional medicinal materials of local Qinghai.Natural resources are nearly exhausted.Recently, scale of planting is becoming larger and larger.We picked the cultivated Rheum sp.of two-year period in Daheigou of Qinghai Province, and analyzed the content of mineral elements.The results showed that mineral elements accumulation in the root, stem and leaf of cultivated Rheum is different from each other and the needing of mineral elements during different seasons of growing has a dynamic characteristic.We want to provide the scientific evidence for sustainable development and reasonable utilization of Rheum sp.resources
Key words： Rheum; mineral elements; Daheigou
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