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Handling of Manure from Different Livestock and Management Systems¹

University of Illinois at Urbana-Champaign, Urbana 61801

Abstract

The relationship of manure value to manure management system is discussed. Liquid manure systems and bedded manure systems tend to minimize nitrogen losses and maximize fertilizer value. In contrast, systems with anaerobic lagoons lose large quantities of nutrients, although this may even be an advantage if the land area available for spreading is limited. Incorporation of the manure soon after spreading was assumed for every system.

Liquid manure systems tend to be more expensive than the other systems compared. The fertilizer value is also greater from liquid manure systems, but the additional return is not large enough to overcome the extra cost.

¹ Paper presented as part of the Symposim on Alternatives in Animal Waste Utilization at Annual Meeting of the American Society of Animal Science, University of Wisconsin, Madison, July 23 to 27, 1977.

² Agricultural Engineering Department.