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Position: Home > Articles > An Experimental Method to Quantify Extractable Amino Acids in Soils from Southeast China Journal of Integrative Agriculture 2013,12 (4)

An Experimental Method to Quantify Extractable Amino Acids in Soils from Southeast China

作  者:
Chen Xian-you;Wu Liang-huan;Cao Xiao-chuang;Animesh, Sarkar;Zhu Yuan-hong
单  位:
Zhejiang Univ, Coll Environm & Resource Sci, Zhejiang Prov Key Lab Subtrop Soil & Plant Nutr, Hangzhou 310058, Zhejiang, Peoples R China;Penn State Univ, Dept Crop & Soil Sci, University Pk, PA 16802 USA;Zhejiang Univ, Coll Environm & Resource Sci, Key Lab Environm Remediat & Ecosyst Hlth, Minist Educ, Hangzhou 310058, Zhejiang, Peoples R China
关键词:
amino acids;extraction;method;soil
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.

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