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Journal of Biological Sciences
  Year: 2014 | Volume: 14 | Issue: 4 | Page No.: 317-321
DOI: 10.3923/jbs.2014.317.321
Precise Optimization of Cattle Manure Composting using an Experimental Small-scale Instrument
Yusuke Kajiya, Yasuyuki Ishii, Kiichi Fukuyama and Sachiko Idota

Abstract:
Ordinary manure composting requires a large amount of material to be processed and it is difficult to compost manure uniformly and repeatedly. The objective of this study was to determine optimal conditions for composting cattle manure using a Kaguyahime unit, an experimental small-scale instrument. The instrument was filled with 7 kg cattle manure from breeding adult beef cows, which grazed on bahiagrass (Paspalum notatum Flügge) pasture and were fed Italian ryegrass (Lolium multiflorum Lam.) hay during shortage of grazing herbage. The manure was dried under sunlight to adjust moisture content or left undried and sawdust was used as a subsidiary material at different ratios. The maximum temperature during the first 7 days of composting occurred when the moisture content of materials was over 60% and the ratio of manure to subsidiary material was 17.5. Under these conditions, the maximum temperature was over 60°C, ranging from 63.4-72.4°C within 4 days after composting and a temperature above 60°C continued for 33.5-48.5 h. The pH and electric conductivity of manure after 20 days of composting remained at a level safe for use with plants.
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How to cite this article:

Yusuke Kajiya, Yasuyuki Ishii, Kiichi Fukuyama and Sachiko Idota, 2014. Precise Optimization of Cattle Manure Composting using an Experimental Small-scale Instrument. Journal of Biological Sciences, 14: 317-321.

DOI: 10.3923/jbs.2014.317.321

URL: https://scialert.net/abstract/?doi=jbs.2014.317.321

 
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