Journal of the Society of Agricultural Structures, Japan
Online ISSN : 2186-0122
Print ISSN : 0388-8517
ISSN-L : 0388-8517
Utilization of Spent Mushroom Compost Dehydrated by Composting Process as Bulking Agent of Dairy Manure Compost
Yoichiro KOJIMA Yoshiyuki ABE
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JOURNAL OPEN ACCESS

2011 Volume 42 Issue 3 Pages 119-125

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Abstract
In this article, we describe the use of spent mushroom compost (SMC), which was dehydrated through a composting process, as a bulking agent. We studied SMC composting for 28 days using a 430-L reactor, and further assessed the potential of SMC as a bulking agent based on characteristics such as moisture content and volatile fatty acid content. We found that SMC could be dehydrated the moisture content of 37.8 %,w.b. in the composting process, which required only 19.8 % of the energy required by a fire dryer. Moreover, composted SMC as a bulking agent was more efficient in improving aeration than non-composted SMC; the total aeration required during the composting process was 57 % of that required by non-composted SMC. Further, composted SMC caused less plant growth inhibition compared with non-composted SMC.
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