The nitrification inhibitor DMPP had no effect on denitrifying enzyme activity

被引：49
作者：
Müller, C
Stevens, RJ
Laughlin, RJ
Azam, F
Ottow, JCG
机构：
[1] Univ Giessen, Dept Appl Microbiol, D-35392 Giessen, Germany
[2] Dept Agr & Rural Dev, Agr & Environm Sci Div, Belfast BT9 5PX, Antrim, North Ireland
来源：
SOIL BIOLOGY & BIOCHEMISTRY | 2002年 / 34卷 / 11期
关键词：
N-15; nitrous oxide; dinitrogen; denitrifying enzyme activity; 3,4-dimethylpyrazole phosphate;
D O I：
10.1016/S0038-0717(02)00165-7
中图分类号：
S15 [土壤学];
学科分类号：
0903 ; 090301 ;
摘要：
Denitrifying enzyme activity (DEA) and flux rates of nitrous oxide (N2O) and dinitrogen ((2)) were studied in DEA assays on soils treated with 3,4-dimethylpyrazole phosphate (DMPP). Nitrous oxide and N-2 fluxes were quantified by N-15 gas-flux method with no additional enzymatic inhibitors, thus, overcoming problems associated with the use of chloramphenicol and acetylene. The nitrification inhibitor DMPP did not affect DEA or the measured gas emissions even when applied in concentrations 14 times higher than the recommended concentration. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1825 / 1827
页数：3
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