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Soil Enzyme Activities in Waste Biochar Amended Multi-Metal Contaminated Soil; Effect of Different Pyrolysis Temperatures and Application Rates

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dc.contributor.author Vithanage, M
dc.contributor.author Bandara, T
dc.contributor.author Al-Wabel, M.I
dc.contributor.author Abduljabbar, A
dc.date.accessioned 2020-08-28T08:03:10Z
dc.date.available 2020-08-28T08:03:10Z
dc.date.issued 2018
dc.identifier.citation Vithanage, M, et al.(2018)."Soil Enzyme Activities in Waste Biochar Amended Multi-Metal Contaminated Soil; Effect of Different Pyrolysis Temperatures and Application Rates", COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS 2018, VOL. 49, NO. 5, 635–643 en_US
dc.identifier.uri http://dr.lib.sjp.ac.lk/handle/123456789/9094
dc.description.abstract Woody biochars derived by pyrolyzing Gliricidia sepium at 300°C and 500°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 esculentumL.) 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. en_US
dc.language.iso en en_US
dc.subject Catalase; phytotoxicity; polyphenol oxidase; soil amendment en_US
dc.title Soil Enzyme Activities in Waste Biochar Amended Multi-Metal Contaminated Soil; Effect of Different Pyrolysis Temperatures and Application Rates en_US
dc.type Article en_US
dc.identifier.doi 10.1080/00103624.2018.1435795 en_US


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