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Microbial biomass and activity in composts of different composition and age

Microbial biomass and activity in composts of different composition and age The aim of this study was to perform a comparison of microbial activity and biomass in biowaste (BWC), yard waste (YWC), and cattle‐manure composts (CMC) of different age. Two different methods for either biomass (microbial C following fumigation‐extraction and microbial lipid phosphate) or activity measurements (CO2‐production rate and fluorescein diacetate hydrolysis) provided comparable information, as judged from their strong correlation. Microbial biomass and activity declined with time in all composts. Microbial biomass C was strongly correlated with microbial activity but was even stronger correlated with pH. CMC proved to be very distinct from the two other compost types by having the highest biomass and the lowest specific activity (i.e., activity per unit biomass). The microbiological properties analyzed allow us to discriminate among different compost types, helping to assign their potential applications. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Plant Nutrition and Soil Science Wiley

Microbial biomass and activity in composts of different composition and age

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References (13)

Publisher
Wiley
Copyright
Copyright © 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
1436-8730
eISSN
1522-2624
DOI
10.1002/jpln.200421342
Publisher site
See Article on Publisher Site

Abstract

The aim of this study was to perform a comparison of microbial activity and biomass in biowaste (BWC), yard waste (YWC), and cattle‐manure composts (CMC) of different age. Two different methods for either biomass (microbial C following fumigation‐extraction and microbial lipid phosphate) or activity measurements (CO2‐production rate and fluorescein diacetate hydrolysis) provided comparable information, as judged from their strong correlation. Microbial biomass and activity declined with time in all composts. Microbial biomass C was strongly correlated with microbial activity but was even stronger correlated with pH. CMC proved to be very distinct from the two other compost types by having the highest biomass and the lowest specific activity (i.e., activity per unit biomass). The microbiological properties analyzed allow us to discriminate among different compost types, helping to assign their potential applications.

Journal

Journal of Plant Nutrition and Soil ScienceWiley

Published: Oct 1, 2004

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