Archive | Core Systems Trial

Initiated in 1990, the Core Systems Trial compares six Wisconsin cropping systems for productivity, profitability and environmental impact.

Managed grazing’s effect on soil quality and structure

A long-term southern Wisconsin cropping systems study shows that soils under managed grazing have a number of positive characteristics compared to soils under other cropping systems….more Author: R. McNair, J. Hedtkce More »

Pastured heifers grow well and have productive first lactations: CIAS Research Brief

Dairy heifers that were raised on pasture in the ongoing Wisconsin Integrated Cropping Systems Trial (WICST) performed as well as or better than, similar heifers that were raised in confinement. In this study, not only did heifers on managed pastures match the weights and age at first calving of their confined counterparts, but they [...] More »

Arlington Agricultural Research Station - 2012 Report

The 2012 growing season was preceded with an extraordinarily dry and mild winter. Winter wheat and alfalfa stands were in excellent condition coming out of winter. Likewise, plants from terminated alfalfa stands (i.e. sprayed out or tilled last fall) were a reoccurring weed in this year’s corn phase: Several plots had to be re-tilled [...] More »

WICST yield summary 1995-2012 at Arlington (most recent)

This table provides annual yield data for each crop in WICST at the Arlington Research Station. More »

Arlington Agricultural Research Station – 2011 Report

2011 season is described from an agronmic perspective. The 2011 season started off unseasonable cold well into May resulting in delayed start to the cropping season. For example, the new seedings of alfalfa established very slowly in April, corn planting was a week later than 2010, and grazing was delayed until adequate forage was available [...] More »

Comparing variability of on-farm greenhouse gas emissions and energy use with the WICST project

Thus far, few studies have estimated greenhouse gas (GHG) emissions, and energy use, modeled by life cycle inventory development (LCID) tools to the individual farm level. The Wisconsin Integrated Cropping System Trial (WICST), an on-station experiment, has provided a unique opportunity to perform LCID’s on cropping systems over a 16 year period and that effort [...] More »

Organic and conventional production systems: Corn and soybean yield trends 1990-2010.

Over the past two decades agronomists have used steady to positive yield trends as evidence of a sustainable cropping system (Jenkinson, 1991; Singh and Jones, 2002; and Bundy et al., 2011). However, some writers have suggested modern agriculture is predisposed to, unsustainable negative yield trends because it relies on large machinery, manufactured pesticides, and [...] More »

Analysis of greenhouse gas emissions using the life cycle inventory development 1993-2008

Greenhouse gases (GHG) of particular interest due to their relatively large contribution to climate change are CO2 (Carbon dioxide), N2O (Nitrous oxide), and CH4 (Methane). Globally, it is estimated that agriculture contributes 10% of total anthropogenic GHG emissions (IPCC 2007), and is the largest emitter of N2O and the second greatest contributor of CH4 [...] More »

Nitrous Oxide Emissions from the Wisconsin Integrated Cropping Systems Trial: 2010

In this study we compare N2O fluxes from the 6 cropping systems at the Wisconsin Integrated Cropping Systems Trial (WICST). The WICST study was established in 1989, so the cropping system treatments have had over 20 years to progress toward new equilibriums. The study is composed of 3 grain and 3 forage cropping [...] More »

Long term effects of common Midwestern agroecosystems on soil organic carbon

Soil organic carbon (SOC) is highly sensitive to agricultural land management. As a result there is a great deal of interest in using cultivated soils to sequester atmospheric CO2. In this study we evaluate the impact of six cropping systems on SOC levels at the Wisconsin Integrated Cropping System Trial (WICST) over a 20 year [...] More »