Browsing by Author "Castellano, Mike"
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Item Proceedings of the 5th Soil and Water Management Field Day(2014-07-23) Strock, Jeffrey S.; Baker, John; Hatfield, Jerry; Sereg, Catherine; Todey, Dennis; Wohnoutka, Shawn; Castellano, Mike; Ingels, Chad; Tollefson, DavidItem The Story of Nitrogen Episode 4- The Soil Bank Account(2021-11-15) Klinger, Greg; Bugeja, Shane; Castellano, Mike; Frelich, Lee; Pyfferroen, TomIn the Midwest, most of the nitrogen our crops use comes from organic matter in the soil rather than the fertilizers we apply. The amount of nitrogen the soil provides can change dramatically from year to year, leading to added complication for farmers. Are there ways to help us predict how our soil management, and other factors like the weather, influence the nitrogen that's available to crops? To learn more: Nitrogen, organic matter decomposition, and corn yields (https://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=1206&context=agron_pubs); Earthworm invasion into previously earthworm-free forests (https://conservancy.umn.edu/bitstream/handle/11299/175603/Frelich%20et%20al%202006.pdf?sequence=1).Item The Story of Nitrogen Episode 5- A Legacy of Salts(2021-11-22) Klinger, Greg; Bugeja, Shane; Dugan, Hilary; Strock, Jeff; Castellano, Mike; Barry, JohnIf you want to understand how nitrogen behaves in the soil, it pays to think about two things: water and time. These two factors control when and how much nitrogen can be lost from soil. They also help explain why some landscapes accumulate the nitrate form of nitrogen while others do not. Join us as we discuss how nitrogen moves through soils, how we can control its losses, and the surprising connections between nitrate, road salt, and nuclear testing. Related content: Nitrate removal from water (https://www.youtube.com/watch?v=Z0kiYmKShsw); How does water (and things like nitrate) move through bedrock? (https://www.mda.state.mn.us/segwresources#Videos); Great video on water movement through soils (https://www.youtube.com/watch?v=0GgCwmAYj5s). To learn more: Chloride in freshwater lakes (https://www.pnas.org/content/114/17/4453.full/); Integrating water management practices to remove nitrate (https://www.youtube.com/watch?v=jbm2uemjBPE&t=3s); Wetlands, bioreactors and other ways to remove nitrate from water (https://www.youtube.com/watch?v=1-irSjH2e1w); Groundwater flow in southeastern Minnesota (https://conservancy.umn.edu/handle/11299/162612).