See more from this Session: Soil Biology and Biochemistry Student Poster Competition
Following sieving, incubated soils were analyzed for accumulation of the amino sugars glucosamine and muramic acid. These amino sugars are microbial residues that can be used to characterize the relative contributions of fungi and bacteria to aggregation processes. Changes in microbial community structure were assessed through analysis of microbial fatty acids. Relationships between amendment type, soil type, microbial parameters, and aggregate formation through time were investigated. The hypothesis being tested is that, relative to other amendments, amendments that stimulate greater fungal activity will also promote greater macroaggregate formation. Anticipated outcomes of this work will provide information on soil management practices that stimulate soil structural enhancement by promoting a favorable microbial community. This information would be useful to those interested in maximizing the agronomic benefits associated with building and sustaining good soil structure.