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Browsing by Author "Nater, Edward A."

Now showing 1 - 5 of 5
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    Biophysical Aspects of Terrestrial Carbon Sequestration in Minnesota
    (University of Minnesota. Water Resources Center, 2006) Lennon, Megan J.; Nater, Edward A.
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    Cultivating Change in the Academy: 50+ Stories from the Digital Frontlines at the University of Minnesota in 2012
    (University of Minnesota, 2012-07) Duin, Ann Hill; Anklesaria, Farhad; Nater, Edward A.
    This collection of 50+ chapters showcases a sampling of academic technology projects underway across the University of Minnesota, projects that we hope inspire other faculty and staff to consider, utilize, or perhaps even develop new solutions that have the potential to make their efforts more responsive, nimble, efficient, effective, and far-reaching. Our hope is to stimulate discussion about what’s possible as well as generate new vision and academic technology direction. The work underway is most certainly innovative, imaginative, creative, collaborative, and dynamic. This collection of innovative stories is a reminder that we are a collection of living people whose Land Grant values and ideas shape who we serve, what we do, and how we do it. Many of these projects engage others in discourse with the academy: obtaining opinion or feedback, taking the community pulse, allowing for an extended discourse, and engaging citizens in important issues. What better time to share 50+ stories about cultivating change than in 2012 – the 150th anniversary of the founding of the Land Grant Mission!
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    The Potential for Terrestrial Carbon Sequestration in Minnesota: A Report to the Department of Natural Resources from the Minnesota Terrestrial Carbon Sequestration Initiative
    (University of Minnesota, 2008-02) Anderson, James L.; Beduhn, Rebecca A.; Current, Dean; Espeleta, Javier F.; Fissore, Cinzia; Gangeness, Bjorn; Harting, John; Hobbie, Sarah E.; Nater, Edward A.; Reich, Peter B.
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    Winter Rye Best Management Practices to Reduce Loads of Sediment and Nutrients to Minnesota Surface Waters
    (2011) Herges, Adam; Krueger, Erik; Baker, John; Porter, Paul; Feyereisen, Gary; Allan, Deborah; Ochsner, Tyson; Nater, Edward A.
    Surface runoff from agricultural fields is potentially harmful to our environment because of excessive loads of sediment and nutrients. Industrialized agriculture has provided food for the world, but has also created unintended water quality problems. Excessive nutrient contamination in the Gulf of Mexico has created a zone of hypoxia where dissolved oxygen levels are too low to support aquatic life. The Upper Midwest agriculture is mostly comprised of corn and soybeans and a large amount of the nitrogen (52%) reaching the Gulf of Mexico is a result of this cropping rotation (Alexander, 2008). In addition, up to 50% of applied synthetic fertilizer on Midwestern soils is lost every year due to rainfall and surface runoff (Tonitto, 2006). However, adding cover crops to an agricultural rotation provides soil cover and retention of nutrients. Various studies have shown that a winter rye cover crop can reduce nitrate leaching by 70% (Tonitto, 2006; Ball Coelho, 2005; Staver and Brinsfield, 1998). However, the use of cover crops in the United States Corn Belt is not widely accepted nor implemented. A survey where 3,500 farmers were asked to provide information on cover crop use showed that only 11% of farmers in the Upper Midwest have used cover crops in the last five years (Singer, 2007). This study will develop Best Management Practices (BMPs) for beef and dairy producers that will make cover crops economically viable. Winter rye offers great potential for environmental benefits on land where corn silage or stover is removed to feed livestock. If the winter rye is established early enough, it can be grazed or harvested as forage in the spring before a cash crop is planted. Two locations in southern Minnesota have been selected for monitoring surface runoff and developing viable cover cropping BMPs. Each location consists of a paired watershed design where one watershed is the control (conventional practice) and the other is the treatment (winter rye following corn harvest). The first location will have winter rye aerially seeded into standing corn grain with spring grazing of the winter rye. The second location will have drilling of winter rye following corn silage harvest with winter rye harvested as forage in the spring prior to soybean planting. This study will encompass two full growing seasons from 2009 to 2011. Additional small plot experiments with the use of a rainfall simulator to evaluate surface runoff differences between conventional practices and cover crop BMPs.