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WHOLE-PLANT CORN HARVESTING FOR BIOMASS: COMPARISON OF SINGLE-PASS AND ULTIPLE-PASS HARVEST SYSTEMS

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Paper number  036089,  2003 ASAE Annual Meeting . (doi: 10.13031/2013.15404)
Authors:   Kevin J. Shinners, Ben N. Binversie
Keywords:   Biomass, corn stover, harvesting

The economic potential of several different harvest and storage scenarios for single-, two-, and three-pass wet harvesting systems for corn stover were evaluated. An economic analysis of a representative farm was used to estimate costs of harvest, storage, and transport of corn stover to assess the most economically promising of the conceived machine configurations. A grain combine with crop unit modified to chop and blow the stalk and leaf fraction was estimated to produce stover at $30.8/dry Mg harvested, stored and delivered to the processing facility. This cost was $41.9/dry Mg for a conventional system with dry bales stored outdoors, so the single-pass system was estimated to reduce costs by 26%. Two- and three-pass wet stover systems using a self-propelled forage harvester reduced delivered cost by 19 and 15%, respectively.

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