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United States Department of Agriculture

Agricultural Research Service

Research Project: IMPROVING ALFALFA AND OTHER FORAGE CROPS FOR BIOENERGY, LIVESTOCK PRODUCTION, AND ENVIRONMENTAL PROTECTION

Location: Plant Science Research

Title: Nitrogen availability from liquid swine and dairy manure: results of on-farm trials in Minnesota

Authors
item Russelle, Michael
item Blanchet, Kevin - UNIVERSITY OF MINNESOTA
item Randall, Gyles - UNIVERSITY OF MINNESOTA
item Everett, Les - UNIVERSITY OF MINNESOTA

Submitted to: Extension Service Bulletins
Publication Type: Other
Publication Acceptance Date: September 17, 2008
Publication Date: October 1, 2008
Citation: Russelle, M.P., Blanchet, K., Randall, G., Everett, L. 2008. Nitrogen availability from liquid swine and dairy manure: results of on-farm trials in Minnesota. University of Minnesota Extension Bulletin 08583. 12 p.

Technical Abstract: In field experiments on 13 Minnesota farms, we found that University of Minnesota predictions of N availability to corn from dairy and swine manure were accurate when the manure was injected by knives or sweeps. Predictions of N availability were less accurate from broadcast-incorporated applications, presumably because ammonia losses were affected by local weather conditions before incorporation. Farmers may be able to improve the prediction of N availability from broadcast manure after considering the weather conditions that occurred between application and incorporation. However, to get the best value from manure N, direct incorporation is recommended.

Last Modified: 7/22/2014
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