Composting Manure and Bedding Reduces Potential Soil and Phosphorus Loss (CIAS Research Brief 102)

Fertilizing fields with manure from dairy farms can contribute to elevated levels of phosphorus in waterways. Researchers at UW-Madison hypothesized that composting manure before spreading it on fields would reduce this problem. more

How Does Organic Management on Dairy Farms Affect Pastures and Soils?

UW-Madison researchers explored whether limitations on the inputs allowed in organic farming may result in differences in plant-soil dynamics compared to conventional dairy operations, necessitating different grazing techniques. They found relevant scientific literature to be scarce. more

Analysis of Water Quality Impact of Windrow Composting

Composting is an ancient and cost-effective way to speed the decomposition of manure by piling it in rows and turning it regularly to aerate. For the last two years, three members of Yahara Pride Farms have been working with UW-Madison to determine whether composting can lead to reductions in phosphorus (P) runoff loads from their farms. more

Evaluation of Manure Storage Capital Projects in the Yahara River Watershed

Better understanding the impact of livestock manure on water quality can inform clear, long-term manure management goals for the Yahara Watershed to reduce phosphorus loading from livestock manure. more

Whole-Farm Modeled Phosphorus Loss Low on Grazing Dairy Farms (Research Brief #94)

Because agriculture is a major nonpoint phosphorus pollution source, there is strong interest in identifying and managing farm sources of phosphorus runoff. On dairy farms, possible sources of this runoff include cropland, grazed pastures, and outside cattle holding areas such as barnyards and overwintering lots. A new study based on modeled data for four dairy farms that use managed grazing found that these farms have very low phosphorus losses on a whole farm basis. more

Productivity and Nitrogen Retention Tradeoffs in Bioenergy Grasslands (Research Brief #93)

Perennial grassland cropping systems may someday be managed as an alternative source of biofuel that requires fewer fertilizer inputs. This alternative biofuel can also reduce competition with food crops because land that is unsuitable for row crops may be used for perennial grasslands. more

Managed Grazing’s Effects 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

Cover Crops on the Intensive Market Farm

Crops that are grown solely to provide soil cover or for the purposes of increasing soil fertility are referred to as cover crops or green manures. Due their ability to protect and enhance soils, cover crops are considered a fundamental aspect of any sustainable cropping system. more