• 한국토양비료학회지
• /
• 제31권호
• /
• pp.121-129
• /
• 1998

• 한국토양비료학회지
• /
• 제31권호
• /
• pp.133-136
• /
• 1998

• 한국토양비료학회지
• /
• 제31권호
• /
• pp.90-99
• /
• 1998

• 한국토양비료학회지
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• 제26권1호
• /
• pp.57-64
• /
• 1993

• 한국토양비료학회지
• /
• 제24권호
• /
• pp.39-77
• /
• 1991

• 한국토양비료학회지
• /
• 제4권1호
• /
• pp.95-100
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• 1971

• 한국토양비료학회지
• /
• 제4권1호
• /
• pp.109-112
• /
• 1971

• 한국토양비료학회지
• /
• 제4권1호
• /
• pp.113-120
• /
• 1971

• 한국토양비료학회지
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• 제40권1호
• /
• pp.83-84
• /
• 2007

• 농업과학연구
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• 제41권4호
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• pp.369-377
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• 2014

This study was carried out to evaluate the effect of rice husk (RHB) and food waste biochar (FWB) on upland soil with sandy loam texture, in terms of physico-chemical analysis, lettuce seed germination test, and orgainc carbon leaching experiment. RHB and FWB had different physico-chemical properties each other. Carbon to nitrogen ratio (C/N ratio) of RHB was 32, showing two times higher than that of FWB. FWB had high salt and heavy metal content, compared to RHB. This is probably due to different ingredients and production processing between two biochars each other. Results of germination test with Lettuce showed lower germination rate when FWB was applied because of higher salt concentration compared to control and RHB. Organic carbon leaching test using saturated soil column (${\Phi}75{\times}h75mm$) with $10MT\;ha^{-1}$ biochar application rate, showed higher saturated hydraulic conductivity in rice husk biochar treatment column, compared to control and food waste biochar treatment. The highest total organic carbon concentration in column effluent was lower than those in both of rice husk biochar and food waste biochar, whereas the differences was negligible after 9 pore volumes of effluent. Consequently, biochars from byproducts such as rice husk and food waste in sandy loam textured upland soil could enhance a buffer function such as reduction of leaching from soil, but the harmful ingredient to crops such as high salt and heavy metals could limit the agricultural use of biochars.