Right fertilizing and no-till cut emissions 65%
Applying less nitrogen fertilizer was one of the main ways Minnesota farmers reduced their emissions, Sheehan explained. Nitrogen fertilizer not only requires a vast amount of energy that leads to emissions during manufacturing, it also emits nitrous oxide, a potent greenhouse gas.
“Over-application of nitrogen fertilizer can add a lot of nitrous oxide, which has a huge greenhouse-gas impact,” Sheehan said.
Links to the studies
“Measuring the carbon footprint of Gevo, Inc.’s Luverne MN corn supply,” November 2012, Sheehan, et.al., Institute on the Environment, Univ. of Minnesota, Colorado State University. http://iree.environment.umn.edu/wp-content/uploads/2014/03/Gevo-final-report-1.pdf
“Scenarios for low carbon corn production,” March 2014, Sheehan, et.al., The Natural Resources Ecology Laboratory, Colorado State University
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