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ISSN : 1229-3571(Print)
ISSN : 2287-819X(Online)
Korean Journal of Organic Agricultue Vol.22 No.1 pp.183-195

우분에 깔짚 혼입 수준이 퇴비화 과정중 이화학적 성상 변화와 지렁이 생존에 미치는 영향

황보순*, 조익환**, 손장호***
*대구대학교 동물자원학과, **대구대학교 동물자원학과, *** 대구교육대학 실과교육과

Effects of Mixing Ratios of Cow Manure and Stall Bedding on Physico-Chemical Characteristics and Earthworm (Eisenia foetida) Survival

Ik-Hwan Jo**, Soon Hwangbo*, Jang-Ho Son***


The present study was conducted to provide basic data for environmentally friendlytreatment of manure using vermicomposting by investigating the influence ofphysiochemical property change during the composting period on the survival ofearthworms after mixing cow manure in different levels (0(CSD0), 10(CSD10),20(CSD20), 30(CSD30), and 40%(CSD40)) with the sawdust that is used beddingin livestock pens. As composting proceeds, earthworms were able to survive in alltreatments after 3 weeks. In terms of the C/N ratio by treatment groups, thesawdust mix treatment was significantly higher than the CSD0 treatment (p<0.05).The C/N ratio in the 3rdweek when earthworms started surviving was 23.26-61.05.As composting progressed, pH and electrolytic conductivity were highest in theCSD0 treatment and tended to decrease with higher proportion of sawdust in themix. It was found that pH and electrolytic conductivity that earthworms starting tosurvive are 7.4-7.7 and 0.28-1.17 mS/cm respectively. To summarize, when composingcow manure with various levels of sawdust mix, all physiochemicalproperty changes turned out to allow the survival of earthworms, but the resultssuggest that efficient vermicomposting requires the tests to examine growth andreproduction according to the sawdust mix ratio.