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Cited by 302Composting and Vermicomposting TechniquesSoil Carbon and Nitrogen DynamicsAgriculture, Plant Science, Crop Management

The DOI matches its Crossref record; 39 of the 39 references it cites were found in a registry or an index.

Influence of Initial C/N Ratio on Chemical and Microbial Composition during Long Term Composting of Straw

Eiland, F., Klamer, M., Lind, A.-M., Leth, M., Bååth, E.·2001·Microbial Ecology
DOI 10.1007/s002480000071
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Abstract

Shredded straw of Miscanthus was composted in 800-L boxes with different amounts of pig slurry added as nitrogen source. The impact of the different initial C/N ratios (11, 35, 47, 50, and 54) on the composting process and the end product was evaluated by examining chemical and microbiological parameters during 12 months of composting. Low initial C/N ratios caused a fast degradation of fibers during the first three months of composting (hemicellulose: 50-80%, cellulose: 40-60%), while high initial C/N ratios resulted in 10-20% degradation of both hemicellulose and cellulose. These differences were reflected in the microbial biomass and respiration, which initially were higher in low C/N treatments than in high C/N treatments. After 12 months of composting, this situation was reversed. Composts with high initial C/N ratios had high microbial biomass (15-20 mg ATP g-1 OM) and respiration rates (200 mg CO2 h-1 g-1 OM) compared to treatments with low initial C/N ratios (less than 10 mg ATP g-1 OM and 25 mg CO2 h-1 g-1 OM). This could be explained by the microorganisms being nitrogen limited in the high C/N ratio treatments. In the low C/N ratio treatments, without nitrogen limitation, the high activity in the beginning decreased with time because of exhaustion of easily available carbon. Different nitrogen availability was also seen in the nitrification patterns, since nitrate was only measured in significant amounts in the treatments with initial C/N ratios of 11 and 35. The microbial community structure (measured as phospholipid fatty acid, PLFA, profile) was also affected by the initial C/N ratios, with lower fungal/bacterial ratios in the low compared to the high C/N treatments after 12 months of composting. However, in the low C/N treatments higher levels of PLFAs indicative of thermophilic gram-positive bacteria were found compared to the high C/N treatments. This was caused by the initial heating phase being longer in the low than in the high C/N treatments. The different fungal/bacterial ratios could also be explained by the initial heating phase, since a significant correlation between this ratio and heat generated during the initial composting phase was found.

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Crossref · 10.1007/s002480000071

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Metadata

Authors
Eiland, F., Klamer, M., Lind, A.-M., Leth, M., & Bååth, E.
Affiliations
  • University of Copenhagen (DK)
  • University of Southern Denmark (DK)
  • Lund University (SE)
ORCID
Bååth, E.
Venue
Microbial Ecology
Publisher
Springer Science and Business Media LLC
Published
2001-02-09
Volume
41
Issue
3
Pages
272-280
ISSN
  • 0095-3628 (ISSN-L)
  • 1432-184X
DOI
10.1007/s002480000071
OpenAlex
W2073339031
Cited by
302
References
39
Citations by year
2026: 13 · 2025: 12 · 2024: 12 · 2023: 11 · 2022: 16 · 2021: 25 · 2020: 25 · 2019: 17 · 2018: 8 · 2017: 17 · 2016: 16 · 2015: 18 · 2014: 13 · 2013: 10 · 2012: 13
FWCI
8.55
Type
journal article
Language
en
Open access
closed
Licence
www.springer.com/tdm (tdm)
Locations
  • Microbial Ecology (publishedVersion)
  • PubMed (publishedVersion)
  • Lund University Publications (Lund University) (submittedVersion)
  • University of Southern Denmark Research Portal (University of Southern Denmark) (submittedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Composting and Vermicomposting Techniques
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Agriculture, Plant Science, Crop Management
Keywords
composting, pig slurry, nitrogen limitation, hemicellulose degradation, cellulose degradation, microbial biomass, microbial respiration, nitrification, phospholipid fatty acids, fungal to bacterial ratio

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