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Title: IMPACT OF SWINE MANURE ON METHANOTROPHIC AND METHANOGENIC ACTIVITY IN SOILS

Author
item CHAN, ALVARUS - IOWA STATE UNIVERSITY
item Parkin, Timothy

Submitted to: Agronomy Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 11/8/1996
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Little is known about the role and activity of swine manure on the production and consumption of methane in agricultural soils. Fertilizing agricultural lands with swine manure is a common practice among Midwestern farmers. Swine manure besides containing a large range of known and unknown compounds also harbors a wide range of microbes. These compounds and microbes may affect the activity of the methanotrophs and the methanogens in soils. This study was done to elucidate the relative impact of swine manure on methanotrophy and methanogenesis in soils. Highly active methanotrophic/methanogenic soil was used for this study. The soil was sieved and then treated with swine manure. Methane, oxygen and methylfluoride concentrations were monitored during this experiment. Our data indicate a total loss of methanotrophic activity and a decrease of methanogenic activity with swine manure treated soils.