Quantifying Cradle-to-Farm Gate Life-Cycle Impacts Associated with Fertilizer used for Corn, Soybean, and Stover Production

Powers, S. E.

National Renewable Energy Laboratory (U.S.)

关键词: Eutrophication;    32 Energy Conservation, Consumption, And Utilization;    Life Cycle;    Ethanol;    Fertilizer;   

DOI  :  10.2172/15016223
RP-ID  :  NREL/TP-510-37500
RP-ID  :  AC36-99-GO10337
RP-ID  :  15016223

美国|英语

来源: UNT Digital Library

【 摘 要 】

Fertilizer use can cause environmental problems, particular eutrophication of water bodies from excess nitrogen or phosphorus. Increased fertilizer runoff is a concern for harvesting corn stover for ethanol production. This modeling study found that eutrophication potential for the base case already exceeds proposed water quality standards, that switching to no-till cultivation and collecting stover increased that eutrophication potential by 21%, and that switching to continuous-corn production on top of that would triple eutrophication potential.