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| In a different class, I have students use the energy calculator described in the article at the following link to estimate the energy required to grow corn on their farms.
http://cornandsoybeandigest.com/how-be-energy-miser
This calculator (which should be attached) includes direct energy consumption and some indirect energy (e.g., the energy required to manufacture fertilizer)
The calculator includes some tables of energy costs for other ag chemicals like herbicides.
check it out and let me know if you have any questions.
Joel
WIU Agriculture
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