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First-generation grain ethanol biofuel has affected the historical excess capacity problem in U.S. agriculture. Second-generation cellulosic ethanol biofuel has had difficulty achieving cost-competitiveness. Third-generation drop-in biofuels are under development. If lignocellulosic biomass from...
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Switchgrass has been proposed as a dedicated energy crop to fulfill long-term policy goals. Production costs were determined for switchgrass and three alternative perennial grass species for four levels of nitrogen fertilizer and two harvest systems. For the alternatives evaluated, biomass...
Persistent link: https://www.econbiz.de/10005503450
Extending switchgrass harvest over many months would require a smaller investment in harvest machines, but would result in a lower average harvestable yield per acre and would require more nitrogen fertilizer, less land for storage, and more land for growing switchgrass. A model was constructed...
Persistent link: https://www.econbiz.de/10008922481
The U.S. Energy Independence and Security Act of 2007 mandates the production of 16 billion gallons of cellulosic biofuels by 2022. Desirable feedstock properties, biomass to biofuel conversion rate, and investment required in plant and equipment differs depending on which of several competing...
Persistent link: https://www.econbiz.de/10009020518
Conventional analytical methods used to determine the most economical farmer-based harvest system and corresponding nutrient management strategy for producing switchgrass (Panicum virgatum L.) feedstock do not consider agronomic and subsequent economic problems associated with soil nutrient...
Persistent link: https://www.econbiz.de/10010916519
There is limited information available explaining the agronomic and economic relationships between yield and nitrogen and phosphorus applications to growing switchgrass produced in phosphorus-deficient soils. The objective of this study was to determine the effects of nitrogen and phosphorus...
Persistent link: https://www.econbiz.de/10009421100
Purpose: The objective of this research was to determine the optimal age and pregnancy status for buying and selling replacement of beef females for risk-neutral and risk-averse producers. Design/methodology/approach: A hedonic pricing model was estimated to measure how age, pregnancy status,...
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