Paragraph from an article advising farmers to wait until the temperature is below 50• to apply anhydrous so that nitrates won't be lost.

"N-serve is an additive producers may use with anhydrous ammonia in fall application to kill bacteria that can transform ammonia to nitrate. Using N-Serve decrease the risk of nitrogen looses over winter and spring by reducing the rate of ammonia transformation to nitrate by soil bacteria", said Franzen.

Hows that for a symptomatic response!

For an excellent publication on great sustainable soil management.
http://attra.ncat.org/attra-pub/soilmgmt.html

Ten Principles of Sustainable Soil
http://www.ohioagconnection.com/story-state.php?Id=96&yr=2009