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Biofuel Crop Production
Presentation by: Josh Carlin
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What should we grow? Ideal Crop High biomass yield
Low in lignin and high in cellulose and hemicellulose Able to stand in field to extend harvest window Low water requirement Low nutrient requirement
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Perennial Crops Switchgrass Big Bluestem Miscanthus x giganteus
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Annual Crops Corn (rotated with soybean) Continuous Corn
Photoperiod Sensitive Sorghum Brown Mid-Rib Sorghum (BMR) Dual Purpose Forage Sorghum
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Challenges Harvesting Water Usage Water Removal Standability Density
Ethanol Production Crop Production
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Water Usage 3 gallons required per gallon of corn ethanol (RFA)
6 gallons required per gallon of cellulosic ethanol (NREL) About inches of water are necessary to produce an acre of average yielding corn
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Harvesting Biomass needs to be at 15% moisture Transportation
Greater bulk density required to transport efficiently
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Cob Harvesting The next step?
Cobs prove to be a good resource in the cellulosic biofuel industry Higher bulk density than stover Leave Less ash when burned Produce higher BTU per pound.
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Other Biofuel Crop Research
Photoperiod Sensitive Sorghum Population Study Ash Byproduct N Fertility Study DDGS Nitrogen Fertility Study
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2009 Manhattan KS Biofuel Plots
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