Back to Search
Start Over
Use of corn stover as bulking agent in dairy manure composting toward Japanese circular dairy farming
- Source :
- PLoS ONE, Vol 15, Iss 10, p e0241064 (2020), PLoS ONE
- Publication Year :
- 2020
- Publisher :
- Public Library of Science (PLoS), 2020.
-
Abstract
- In response to the recent development of ear corn feeding systems and the shortage of bulking agents for manure composting in the Hokkaido region, the plausibility of using corn stover (a residue of ear corn harvesting) as an alternative bulking agent for dairy manure composting was tested. The temperature profile, quality of the final product, and greenhouse gas emissions were evaluated and compared with the values obtained from manure that used wheat straw, a typical bulking agent. A sufficiently high temperature profile (>70°C) and active organic matter degradation were achieved by mixing in corn stover. After active organic matter degradation for 8 weeks, CO2 production was significantly lower and the stable final products were obtained. The total solids level increased significantly, to 48.8–50.4%, while the C/N ratio dropped significantly, from 19.9–21.8 to 11.2–12.8. Methane emission from the corn-stover-based pile was 0.36% of initial volatile solids, while nitrous oxide emission was 0.58% of initial N, proving that the use of corn stover can mitigate greenhouse gas emission and that its mitigating effect was comparable to those of other bulking agents. Together, the results showed that the use of corn stover can be a suitable alternative bulking agent for dairy manure composting and can serve as part of an ecologically friendly and “circular” method of dairy farming.
- Subjects :
- Atmospheric Science
Hot Temperature
02 engineering and technology
010501 environmental sciences
01 natural sciences
Methane
chemistry.chemical_compound
Japan
Plant Products
0202 electrical engineering, electronic engineering, information engineering
Animal Management
chemistry.chemical_classification
Multidisciplinary
Eukaryota
Straw
Agriculture
Plants
Pulp and paper industry
Chemistry
Corn stover
Experimental Organism Systems
Wheat
Physical Sciences
Medicine
Research Article
Livestock
020209 energy
Science
Research and Analysis Methods
Zea mays
Greenhouse Gases
Model Organisms
Plant and Algal Models
Environmental Chemistry
Organic matter
Grasses
Dairy farming
0105 earth and related environmental sciences
Composting
Ecology and Environmental Sciences
Organisms
Chemical Compounds
Biology and Life Sciences
Carbon Dioxide
Total dissolved solids
Manure
Agronomy
Maize
chemistry
Atmospheric Chemistry
Greenhouse gas
Animal Studies
Earth Sciences
Environmental science
Crop Science
Subjects
Details
- Language :
- English
- ISSN :
- 19326203
- Volume :
- 15
- Issue :
- 10
- Database :
- OpenAIRE
- Journal :
- PLoS ONE
- Accession number :
- edsair.doi.dedup.....8b8a69eb4443369cf5610f9924e7f869