Canadian Biosystems Engineering | |
Fly-ash from a pulp and paper mill: A potential liming material for agricultural soils in Western Newfoundland. | |
article | |
Gnanakaran Maheswaran1  Manokararajah Krishnapillai1  Doreen Churchill2  Lakshman Galagedara1  | |
[1] School of Science and the Environment, Grenfell Campus, Memorial University of Newfoundland;Canadian Forest Service, Atlantic Forestry Centre | |
关键词: Fly-ash; heavy metal; liming; pH; Western Newfoundland; | |
DOI : 10.7451/CBE.2019.61.1.9 | |
学科分类:农业科学(综合) | |
来源: Canadian Society of Agricultural Engineering | |
【 摘 要 】
Most agricultural soils in Western Newfoundland are acidicand need lime to raise soil pH to be productive. CornerBrook Pulp and Paper Ltd produces a substantial amount offly-ash, disposed of at a local landfill. This study wasconducted to assess the potential for using fly-ash as aliming material for agricultural soil (pH 5.5) in WesternNewfoundland. Heavy metal concentration in the soil andfly-ash were analysed and compared with soil and compostguidelines. As per quality guidelines, only part of the limerequirement can be substituted by fly-ash. The percentagemay vary depending on initial soil pH and the desired pHfor the crop to be grown. The total lime requirement can bemet when fly-ash is applied combined with other soilamendments low in trace element concentration.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO202306290003419ZK.pdf | 313KB | download |