摘要
目的:研究三七连作土壤与生茬土壤矿质营养元素的差异,探讨三七连作障碍原因及解决措施。方法:采用电感耦合等离子体原子发射光谱法测定三七生茬土与3年重茬土中铁、锰、锌、铜、钾、硼、钙、镁、钠和硅元素含量。结果:试验结果表明三七3年重茬土中铜和钙含量明显低于生茬土中的含量,锌、硼、镁和硅的含量差异不明显,但铁、锰、钾和钠的含量在重茬土中反而明显偏高。结论:通过补充或平衡三七连作土壤中的消耗的矿质营养元素,有望缓解三七连作障碍问题。
Objective： Determined the contents of Fe, Mn, Zn, Cu, K, B, Ca, Mg, Na, Si in soil in which Panax notoginsengs were not planted and soil in which notoginseng had been planted for three years by ICP-OES. And then study the way to solve the continuous cropping obstacle. Methods： Determined the contents of Fe, Mn, Zn, Cu, K, B, Ca, Mg, Na, Si in soil by inductively coupled plasma atomic emission spectrometry. Results： The result showed that the contents of Fe, Mn, Zn, Cu, K and B in soil in which Panax notoginseng had been planted for three years were significantly lower than those in soil in which Panax notoginseng had not been planted. The contents of Mg and Si in both kinds of soil were not significantly different. But the contents of Na and Ca in soil in which Panax notoginseng had been planted for three years were significantly higher than those in soil in which Panax notoginseng had not been planted. Conclusion： It is hopeful to put off the continuous cropping obstacle by complementing or balancing these elements wasted by Panax notoginseng.
出处
《中国现代中药》
CAS
2009年第4期10-11,17,共3页
Modern Chinese Medicine
关键词
三七
元素
连作障碍
Panax notoginseng
Element
Obstacle to continuous cropping
