Analyses of Nematode Communities in the WISCT Preliminary Analysis of 1995 Data from the Arlington Site

The objective of this project is to determine if the cropping systems differ in terms of the types and taxa of nematodes present. Our long term goals are to determine how the nematode community contributes to the “rotation effect” and to develop predictive uses for nematode community structure. Author: Ann MacGuidwin More »

Analysis of Soil Macroarthropods Associated with Pitfall Traps in the Wisconsin Integrated Cropping Systems Trial, 1995

The health of soil ecosystems is often quantified using biological diversity indices to gain insight into the “stability” of these systems. In general, a greater diversity of soil fauna inhabiting a system help establish healthy soils because the interactions of a richer complex of taxa (e.g. species) contributes to a more stable food web. Macroarthropods […] More »

Residue Decomposition: A Review of the First Four Years of Results

The litter bag study was initiated in 1993 on the Wisconsin Integrated Cropping Systems Trial (WICST). The objectives of this study were to characterize the influence of crop rotation on residue decomposition. In collaboration with the team entomologists, the role of macro- and meso- invertebrates in the decomposition process were also monitored. This latter objective […] More »

Pitfall Trap Analysis of Soil Macroathropods associated with WICST – 1994

Our hypothesis in this study of arthropod diversity continues to be that  the level and frequency of soil disturbance (both physical and chemical) in the various cropping systems influence the numbers and kinds of arthropods inhabiting the plots.  Differences in arthropod populations could contribute to as well as result from changes in soil characteristics. In […] More »

Residue Decomposition Following Corn in Three Cropping Systems: 1993 Results

To characterize the influence of crop rotation on residue decomposition, a litter bag study was initiated on WICST during 1993.  It has been suggested that enhanced efficiency of lower input systems is due to increased soil biological activity resulting in a more rapid decomposition of residue and improved nutrient retention.  Our hypothesis was that the […] More »