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| An Experimental Method to Quantify Extractable Amino Acids in Soils from Southeast China |
| CHEN Xian-you, WU Liang-huan, CAO Xiao-chuang, Sarkar Animesh, ZHU Yuan-hong |
1.Key Laboratory of Environmental Remediation and Ecosystem Health, Minstry of Education/College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, P.R.China
2.Zhejiang Provincial Key Laboratory of Subtropical Soil and Plant Nutrition, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, P.R.China
3.Department of Crop and Soil Sciences, The Pennsylvania State University, PA 16802, USA |
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摘要 The extraction and comparison of soil amino acids using different extractants (deionized water, K2SO4, Na2SO4, NaCl, KCl) were reported. Results showed that 0.5 mol L-1 K2SO4 with a 5 times extraction was a better method to assess the concentration of extractable amino acids in soils. The total amino acids extracted from soil planted for tea were similar to the total inorganic nitrogen. While they extracted from vegetable soil and paddy soil were much lower than the total inorganic nitrogen.
Abstract The extraction and comparison of soil amino acids using different extractants (deionized water, K2SO4, Na2SO4, NaCl, KCl) were reported. Results showed that 0.5 mol L-1 K2SO4 with a 5 times extraction was a better method to assess the concentration of extractable amino acids in soils. The total amino acids extracted from soil planted for tea were similar to the total inorganic nitrogen. While they extracted from vegetable soil and paddy soil were much lower than the total inorganic nitrogen.
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Received: 20 July 2012
Accepted:
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| Fund: This work was supported by the National Natural Science Foundation of China (30871595 and 31172032), and the Special Fund for Agro-scientific Research in the Public Interest of China (201003016). |
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Corresponding Authors:
Correspondence WU Liang-huan, Tel/Fax: +86-571-88982079, E-mail: finm@zju.edu.cn
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| About author: CHEN Xian-you, Tel/Fax: +86-571-88982079, E-mail: youyou@zju.edu.cn |
Cite this article:
CHEN Xian-you, WU Liang-huan, CAO Xiao-chuang, Sarkar Animesh, , ZHU Yuan-hong.
2013.
An Experimental Method to Quantify Extractable Amino Acids in Soils from Southeast China. Journal of Integrative Agriculture, 12(4): 732-736.
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