The extraction and comparison of soil amino acids using different extractants (deionized water, K2SO4, Na2SO4, NaC1, KCI) were reported. Results showed that 0.5 tool L-1 K2SOa with a 5 times extraction was a better ...The extraction and comparison of soil amino acids using different extractants (deionized water, K2SO4, Na2SO4, NaC1, KCI) were reported. Results showed that 0.5 tool L-1 K2SOa 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.展开更多
基金supported by the National Natural Science Foundation of China (30871595 and 31172032)the Special Fund for Agro-scientific Research in the Public Interest of China (201003016)
文摘The extraction and comparison of soil amino acids using different extractants (deionized water, K2SO4, Na2SO4, NaC1, KCI) were reported. Results showed that 0.5 tool L-1 K2SOa 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.
基金Project supported by the National Natural Science Foundation of China (No.30871595)the Science and Technology Cooperation Project of Ningbo, China (No.2005C100041)
文摘INTRODUCTION As a result of the massive construction following rapid economic growth in China, extraction of