Productivity and greenhouse gas emissions from longterm stockpiled soils treated with organic amendments

dc.contributor.authorLaskosky, Jorden
dc.contributor.examiningcommitteeGoh, Tee Boon (soil science) Renault, Sylvie (Biological Sciences) Hao, Xiying (Soil Science)en_US
dc.contributor.supervisorZvomuya, Francis (soil science)en_US
dc.date.accessioned2015-09-28T19:25:12Z
dc.date.available2015-09-28T19:25:12Z
dc.date.issued2015
dc.degree.disciplineSoil Scienceen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractReclamation success is highly dependent upon final soil quality of stockpiled soils, such as those found Cold Lake Oil Sands Region. Stockpiled soils, however, are generally poor in quality. Soils were amended with, biochar (BC), humalite (HU), a sub-bituminous coal; and peat (PT), as well as 50:50 blends of biochar:humalite (BCH) and biochar:peat (BCP). These amendments were applied at rates of 0, 6.55, 13.1 and 26.2 g C kg-1 each. Biochar, PT, and BCP applied at the rate of 26.2 g C kg-1 were found to reduce N2O emissions by 34, 54, and 70%, respectively, relative to the control. Within the bioassay, BC and PT amendment resulted in a 38 and 40% increase in dry matter yield (DMY) respectively. Finally, amendment typically resulted in significant net decreases in Olsen P values, while nitrate and ammonium concentrations were high in PT amended soils. In general, PT had the best overall performance.en_US
dc.description.noteOctober 2015en_US
dc.identifier.urihttp://hdl.handle.net/1993/30846
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectBiocharen_US
dc.subjectLeonarditeen_US
dc.subjectPeaten_US
dc.subjectStockpiled soilsen_US
dc.subjectNitrous Oxide Emissionsen_US
dc.subjectBioassayen_US
dc.subjectMineralization ratesen_US
dc.subjectOne-liften_US
dc.subjectTwo-liften_US
dc.titleProductivity and greenhouse gas emissions from longterm stockpiled soils treated with organic amendmentsen_US
dc.typemaster thesisen_US
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