Role of woody biochar and fungal-bacterial co-inoculation on enzyme activity and metal immobilization in serpentine soil
Article
Article Title | Role of woody biochar and fungal-bacterial co-inoculation on enzyme activity and metal immobilization in serpentine soil |
---|---|
ERA Journal ID | 31051 |
Article Category | Article |
Authors | Bandara, Tharanga, Herath, Indika, Kumarathilaka, Prasanna, Seneviratne, Mihiri, Seneviratne, Gamini, Rajakaruna, Nishanta, Vithanage, Meththika and Ok, Yong Sik |
Journal Title | Journal of Soils and Sediments: protection, risk assessment and remediation |
Journal Citation | 17 (3), pp. 665-673 |
Number of Pages | 9 |
Year | 2017 |
Publisher | Springer |
Place of Publication | Germany |
ISSN | 1439-0108 |
1614-7480 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s11368-015-1243-y |
Web Address (URL) | https://link.springer.com/article/10.1007/s11368-015-1243-y |
Abstract | Purpose: In this study, we investigated the effect of biochar (BC) and fungal bacterial co-inoculation (FB) on soil enzymatic activity and immobilization of heavy metals in serpentine soil in Sri Lanka. Materials and methods: A pot experiment was conducted with tomatoes (Lycopersicon esculentum L.) at 1, 2.5, and 5 % (w/w) BC ratios. Polyphenol oxidase, catalase and dehydrogenase activities were determined by idometric, potassium permanganate oxidisable, and spectrophotometric methods, respectively. Heavy metal concentrations were assessed by 0.01 M CaCl2 and sequential extraction methods. Results and discussion: An increase in BC application reduced polyphenol oxidase, dehydrogenase, and catalase activity. The application of FB increased soil dehydrogenase activity, with the maximum activity found in 1 % BC700 + FB treatment. Moreover, the CaCl2 extractable metals (Ni, Mn, and Cr) in 5 % BC700 amended soil decreased by 92, 94, and 100 %, respectively, compared to the control. Sequential extraction showed that the exchangeable concentrations of Ni, Mn, and Cr decreased by 55, 70, and 80 % in 5 % BC700, respectively. Conclusions: Results suggest that the addition of BC to serpentine soil immobilizes heavy metals and decreases soil enzymatic activities. The addition of FB to serpentine soil improves plant growth by mitigating heavy metal toxicity and enhancing soil enzymatic activities. |
Keywords | Biochar; Bioremediation; Black carbon; Charcoal; Phytotoxicity |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Funder | National Research Foundation of Korea |
Byline Affiliations | National Institute of Fundamental Studies, Sri Lanka |
College of the Atlantic, United States | |
North-West University, South Africa | |
Kangwon National University, Korea | |
Library Services |
https://research.usq.edu.au/item/wv441/role-of-woody-biochar-and-fungal-bacterial-co-inoculation-on-enzyme-activity-and-metal-immobilization-in-serpentine-soil
46
total views0
total downloads1
views this month0
downloads this month