Midwest Cropping Systems Effects on Soil Properties and on a Soil Quality Index

ABSTRACT Cropping systems may improve or decrease soil quality depending on the specific crop rotation, nutrient amendments, and tillage practices employed. We conducted this study to determine the effect of six cropping systems in the Wisconsin Integrated Cropping Systems Trial on soil properties after 18 years of continuous treatments. We sampled soils (0-5-cm and 5-20-cm […] More »

Endogeic and Anecic Earthworm Abundance in Six Midwestern Cropping Systems

ABSTRACT Endogeic and juvenile anecic abundance was measured in soil samples and anecic populations were studied by counting midden numbers at the sites of two long-term cropping systems trials in South-central Wisconsin. The three grain and three forage systems at each site were designed to reflect a range of Midwestern USA production strategies. The primary […] More »

Earthworm Populations at the Wisconsin Integrated Cropping Systems Tria

Many farmers, organic gardeners, and researchers have recognized earthworms as important organisms contributing to “healthy” soils (Romig et al. 1995). Earthworms are frequently associated with their ability to mix the soil (Cook and Linden 1996, Marinissen and Hillenaar 1997), increase rates of water infiltration (Bouche and Al-Addan 1997, Linden et al. 1991, Zachmann et al. […] More »

Earthworm populations on the WICST Plots (1999-2001)

In this study, our primary objective was to determine the effect of crop rotation on earthworm abundance. Two types of earthworms are found on the WICST plots: topsoil-dwelling and subsoil-dwelling (night crawlers) species. Authors: Jon Simonsen, Martha Rosemeyer, and Josh Posner More »