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 |