Anaerobic digesters for livestock operations are receiving attention for energy production and odor control. A farm-based digester went into operation in September 1999, on an 800-cow dairy farm in Minnesota. The goals of this paper are to analyze the contribution that a digester system can make...

The economics of applying swine manure is analyzed from the different perspectives of a producer and a custom manure applicator. The analysis shows that the fertilizer savings that result from lowering the application rate and covering more acres may cover the cost of the applicator investment....