<P>Woody biochars derived by pyrolyzing Gliricidia sepium at 300 degrees C and 500 degrees C and a waste byproduct of same biomass from a bioenergy industry (BC700) were tested for their effect on soil enzymes activities and available form of he...
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https://www.riss.kr/link?id=A107468331
2018
-
SCI,SCIE,SCOPUS
학술저널
635-643(9쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P>Woody biochars derived by pyrolyzing Gliricidia sepium at 300 degrees C and 500 degrees C and a waste byproduct of same biomass from a bioenergy industry (BC700) were tested for their effect on soil enzymes activities and available form of he...
<P>Woody biochars derived by pyrolyzing Gliricidia sepium at 300 degrees C and 500 degrees C and a waste byproduct of same biomass from a bioenergy industry (BC700) were tested for their effect on soil enzymes activities and available form of heavy metals in multi-metals contaminated soil. Pot experiments were conducted during 6 weeks with tomato (Lycopersicon esculentum L.) at biochar application rates, 1, 2.5, and 5% (w/w). A reduction in polyphenol oxidase with biochars produced at increasing pyrolysis temperature compared to the control whereas the maximum activity of dehydrogenase and catalase was observed in 1% BC500 and 2.5% BC300, respectively. Soil available form of Ni, Mn, and Cr were reduced by 55, 70% and 80% in 5% BC700 amended soil, respectively. The highest geometric mean of enzyme activities was observed in 2.5% BC300 treatment. Overall the application of high dosages of high temperature derived biochar masks/deteriorates soil enzyme activities but immobilizes bioavailable heavy metals and reduces toxicity.</P>