scholarly journals Conversion factor (k factor) for estimation of soil microbial biomass potassium by the chloroform-fumigation extraction method 

2018 ◽  
Vol 64 (4) ◽  
pp. 465-468
Author(s):  
Kohei Yamashita ◽  
Hiroki Honjo ◽  
Makoto Shinohara ◽  
Susumu Asakawa
Keyword(s):  
Microbial Biomass ◽  
Extraction Method ◽  
Soil Microbial Biomass ◽  
Conversion Factor ◽  
Soil Microbial ◽  
K Factor ◽  
Chloroform Fumigation ◽  
Fumigation Extraction

SHORT COMMUNICATION: Estimation of microbial biomass by ninhydrin-reactive N using liquid chloroform

1996 ◽  
Vol 76 (1) ◽  
pp. 37-40 ◽  
Author(s):  
P. M. Mele ◽  
M. R. Carter
Keyword(s):  
Microbial Biomass ◽  
Extraction Method ◽  
Soil Microbial Biomass ◽  
Short Communication ◽  
Extraction Methods ◽  
Promising Technique ◽  
Soil Microbial ◽  
Reactive N ◽  
The Relationship ◽  
Fumigation Extraction

Ninhydrin-reactive N (NRN), which is a reliable and sensitive indicator of soil microbial biomass, was measured in extracts of three Australian duplex soils, under different tillage systems, fumigated using either vaporized or liquid CHCl3. Although the relationship between the two fumigation-extraction methods was influenced by soil type, the use of liquid CHCl3 appears to be a promising technique to allow greater ease and speed for releasing NRN in microbial biomass analysis. Key words: Duplex soils, tillage, microbial biomass, fumigation-extraction method

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