| 利用ICP-AES测定农田生态系统微量元素Mn和Cu的循环率与收支 |
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| 作者姓名： | Zhou H Xu YG Jiang CM |
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| 作者单位： | 中国科学院沈阳应用生态研究所,辽宁沈阳,110016 |
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| 基金项目： | 国家自然科学基金项目(31070547,31000206); 中国科学院创新项目(KZCX2-YW-407); 国家科技支撑计划课题(2007BAD89B02)资助 |
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| 摘 要： | 将长期定位试验和ICP-AES测试相结合,研究了不同施肥制度下农田生态系统微量元素Mn和Cu的循环和收支状况。结果表明,Mn和Cu因属沉积型循环其循环率高于80%,且随投料量增加呈增加趋势。两种微量元素均入不敷出,收支差额呈现M<(或≤)NPK+M
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| 关 键 词： | Mn Cu 循环率 收支 |
The recycling rate and budget of trace element Mn and Cu in agroecosystem using ICP-AES |
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| Zhou H,Xu YG,Jiang CM.The recycling rate and budget of trace element Mn and Cu in agroecosystem using ICP-AES[J].Spectroscopy and Spectral Analysis,2011,31(10):2848-2850. |
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| Authors: | Zhou Hua Xu Yong-Gang Jiang Chun-Ming |
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| Institution: | ZHOU Hua,XU Yong-gang*,JIANG Chun-mingInstitute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China |
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| Abstract: | The recycling rate and budget of Mn and Cu under different fertilization regimes by using long-term field experiment and ICP-AES analysis were investigated in the present paper. The results showed that the recycling rates of Mn and Cu were greater than 80% because of sediment recycling type, and the values increased with the amount of feed stuffs increasing. Both the two elements under different fertilization regimes showed budget deficit, with the deficit order of M< (or < or =)NPK + M < CK < NPK, showing that chemical fertilizer application might induce severe deficit, while application of recycling organic matter might minimize the unbalance. |
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| Keywords: | Mn Cu Residual rate Budget |
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