The fumigation extraction method to estimate soil microbial biomass: Extraction with 0.01 m CaCl2

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作者：
Joergensen, RG
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来源：
AGRIBIOLOGICAL RESEARCH-ZEITSCHRIFT FUR AGRARBIOLOGIE AGRIKULTURCHEMIE OKOLOGIE | 1995年 / 48卷 / 3-4期
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中图分类号：
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号：
0905 ;
摘要：
The fumigation-extraction method to estimate the soil microbial biomass was carried out with 0.01 M CaCl2 solution as extractant. The difference E(C) extracted with 0.01 M CaCl2 from fumigated minus non-fumigated soils can be recalculated into biomass C using the same k(EC) value (= 0.45) as for 0.5 M K2SO4. 0.01 M CaCl2 solution is less suitable for the quantification of microbial biomass N, because the difference EN was proved to be 27 % lower, mainly due to the nonextracting adsorbed ammonium.
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页码：319 / 324
页数：6
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