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Description: A feasibility analysis was done to assess the impact of field maceration on an alfalfa dehydration plant. On the basis of current research knowledge, a hypothetical self-propelled (SP) mower-macerator was assumed to increase the field drying rate by 70% compared to a conventional SP mower-conditioner. It was also assumed to have a purchase price 50% higher and a throughput capacity 17% lower than a conventional machine. The macerator reduced the amount of water to be evaporated artificially by 25 to 33% under a wide range of climates, between 0.2 and 0.5 daily rainfall probability (PR). Although the macerator operated more slowly than the conventional mower, it operated more hours and harvested more dry matter (DM) per year except in a very dry climate (PR < 0.3). The net benefit in favor of the macerator was $0.36. $1.31. $2.29, and $3.88/t DM under 0.2, 0.3, 004, and 0.5 daily rainfall probabilities, respectively. This represented net annual savings between $14,000 and $20,000 per mower unit in the wetter climate (004 to 0.5 rain probability). Additional economies of $2.61 and $2.12/t DM could be achieved if maceration were able to double the drying rate and if improved design maintained throughput to a level equal to that of current mower-conditioners.

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Citation: P. Savoie, M. Pouliot and S. Sokhansanj 1995. POTENTIAL IMPACT OF MOWING-MACERATION ON AN ALFALFA DEHYDRATION PLANT. Canadian Agricultural Engineering 37(4):295-304.
Volume: 37
Issue: 4
Pages -
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Date: 1995
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Type: Text.Article
Format: PDF
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Coverage: Canada
Language 1: en
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Rights: Canadian Society for Bioengineering
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