WI Research – old

Cover Crop Overseeding into Soybean in Wisconsin – 2016

Wisconsin growers are increasingly interested in utilizing cover crops. While cover crop establishment is relatively easy following corn silage, small grains, and processing vegetables, establishing cover crops successfully following corn or soybean has been more difficult. An approach is to overseed cover crops into standing soybean late in the growing season. This management practice requires an aerial or broadcast application with special equipment. The objectives of this study was to assess the ability to overseed cover crops into soybean at R7 growth stage and to obtain cover crop biomass measurements. The hypothesis of the study was that cover crops will establish at the R7 growth stage. Read more….

Long-term Cover Crop use and Soil Health

The objective of this study was to determine the effect of continuously using cover crops for 4 or 5 years on soil health, measured as potentially mineralized nitrogen (PMN) and permanganate oxidizable carbon (POXC).  The study site was a continuous corn silage system with fall manure application and no further N added. Treatments included rye as a cover (chemically terminated) or a forage (harvested) crop and no cover crop Read more….

Interseeding in the Lower Fox River Basin

Inter seeding in Northeastern Wisconsin has been tried with a number of systems. To date we have had the most success planting with the double disk opener systems, although different types of wavy coulters and Lilliston units have also been tried. According to our observations, getting the cover up fast before canopy closure is vital to the season-long survival of the cover. Read more….

Crimson and Berseem Clovers after Wheat in Sheboygan County

This study explored a using annual clovers as cover crops after wheat to enhance rotational impacts, to provide nitrogen credits to the next year’s crop, and potentially provide a late season forage crop. Read more….

Impact of Corn and Soybean Herbicide Carryover on Cover Crops

The objective of this research was to determine if herbicides that are commonly applied to silage corn or soybean adversely affect cover crops planted after harvest.   Read more…

Termination of winter rye and annual ryegrass used as spring forage crops

The objective was to evaluate methods and timings applicable in a conventional dairy system for annual ryegrass and winter rye termination when used as forage. 2014 and 2015 results suggest that utilizing glyphosate immediately following forage harvest can provide successful termination of both species. Read more…

Impact of Wheat Herbicides on Cover Crops

The objective of this research was to determine if herbicides that are commonly applied to wheat adversely affect cover crops planted after harvest.   In 2014 all cover crops did not have reduced dry biomass weight, plant population, or percent green cover following any of the herbicide treatments.

Cover Crop Interseeding in Wisconsin using a Modified Grain Drill

The objective of this study was to evaluate interseeding cover crops into V5 corn using a modified grain drill and to access cover crop biomass and corn grain yield.  Read more…

Cover Crops after corn silage in Dane County

For the last three years, Dane County Extension and Yahara Pride Farms (a farmer-led watershed group) have conducted cover crop plots to evaluate what cover crops work best after corn silage in this region.  We have evaluated planting dates, cover crop species, planting rates and various planting methods. Read more….

Marshfield Ag Research Station No-till and Cover Crop Projects

A primary goal of the agronomy program at MARS is to convey usable information to farmers while modeling sound and responsible practices.To ensure that this goal is met, the research station maintains a continuous dialogue with local farmers through meetings and field days in order to foster communication and collaboration with Central WI farmers who share similar goals. This continuous dialogue has inspired a series of on-farm research trials intended to answer real questions that farmers have. Read more…

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