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Studies on the Evaluation of Kenaf as a Bulking Agent in Livestock Composting  

Lim, Jeong-Ju (College of Veterinary Medicine (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.)
Kim, Dong-Hyeok (College of Veterinary Medicine (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.)
Lee, Jin-Ju (College of Veterinary Medicine (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.)
Kim, Dae-Geun (College of Veterinary Medicine (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.)
Lee, Hu-Jang (College of Veterinary Medicine (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.)
Min, Wongi (College of Veterinary Medicine (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.)
Park, Dongjin (Dept. of Horticulture (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.)
Huh, Moo-Ryong (Dept. of Horticulture (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.)
Chang, Hong-Hee (Div. of Applied Life Science (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.)
Kim, Pil-Joo (Dept. of Envirobiotechnology (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.)
Kim, Suk (College of Veterinary Medicine (Insti. of Agric. & Life Sci.), Gyeongsang National Univ.)
Publication Information
Journal of agriculture & life science / v.45, no.2, 2011 , pp. 21-28 More about this Journal
Abstract
Hibiscus cannabinus L is a plant in the Malvaceae family. Kenaf was seeded at June 1st in 2010 and harvested at November 18th and dried and evaluated worth as a bulking agent for livestock composting. Harvested and dried Kenaf was divided into the bast, core and leaf. All materials were grinded by hammer mill and the moisture absorption, moisture evaporation, pH, volume weight and C/N ratio were measured. Kenaf was higher water absorption and evaporation ability than those of sawdust and chaff. The pH values of Kenaf were pH $2.8{\pm}0.01$ - $4.34{\pm}0.02$, which is lower pH value than those of sawdust (pH $5.28{\pm}0.01$) and chaff (pH $6.3{\pm}0.02$). The C/N ratio of Kenaf showed 649 of core, 204 of bast and 70 of leaf, which were lower than sawdust (789.1) but higher than chaff (132). In volume weight test, the materials were divided by particle size of Kenaf, named as group A(${\geq}4cm$), B(${\leq}4cm$, ${\geq}0.25cm$) and C(${\leq}0.25cm$). The volume of weight of group A and B for core, bast and leaf showed similar, but group C showed higher than those of sawdust and chaff. Especially, the volume weight of group C for leaf was 5 times higher than those of sawdust and chaff. This study suggested the possibility of using Kenaf as a bulk agent for composting of livestock manure. This is considered that strengthen the competitiveness of farmers through reducing the cost, prevention of environmental pollution caused by livestock manure and environmentally friendly processing of livestock manure.
Keywords
Kenaf; Manure composting; Bulk agent;
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Times Cited By KSCI : 6  (Citation Analysis)
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