Structure and activity of the denitrifying community in a maize-cropped field fertilized with composted pig manure or ammonium nitrate

Abstract One alternative to mineral fertilization is to use organic fertilizers. Our aim was to compare the impacts of 7-year applications of composted pig manure and ammonium nitrate on the structure and activity of the denitrifying community. Mineralization and organization of N, denitrification r...

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Bibliographic Details
Published in:FEMS microbiology ecology 2006-04, Vol.56 (1), p.119-131
Main Authors: Dambreville, Christophe, Hallet, Stéphanie, Nguyen, Christophe, Morvan, Thierry, Germon, Jean-Claude, Philippot, Laurent
Format: Article
Language:English
Subjects:
Amino Acid Sequence
Ammonium
Ammonium nitrate
Animals
Base Sequence
Biological and medical sciences
Carbon content
Cereal crops
Communities
community structure
Composting
Corn
Denitrification
DNA, Bacterial - chemistry
DNA, Bacterial - genetics
Ecology
Fertilization
Fertilizer application
Fertilizers
Fertilizers - microbiology
Fluxes
Fundamental and applied biological sciences. Psychology
Gram-Negative Aerobic Rods and Cocci - genetics
Gram-Negative Aerobic Rods and Cocci - growth & development
Gram-Negative Aerobic Rods and Cocci - metabolism
Manure - microbiology
Manures
Microbiology
Microorganisms
Mineral fertilizers
Mineralization
N2O
nitrate reductase
Nitrate Reductase - genetics
Nitrate Reductase - metabolism
Nitrates
Nitrates - metabolism
Nitrous oxide
Nitrous Oxide - metabolism
nitrous oxide reductase
organic fertilizer
Organic fertilizers
Phylogeny
Pig manure
Polymerase Chain Reaction
Polymorphism, Restriction Fragment Length
Random Allocation
Soil Microbiology
Swine
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Summary:Abstract One alternative to mineral fertilization is to use organic fertilizers. Our aim was to compare the impacts of 7-year applications of composted pig manure and ammonium nitrate on the structure and activity of the denitrifying community. Mineralization and organization of N, denitrification rates and N2O/N2 ratio were also investigated. Fourteen months after the last application, the potential denitrifying activity (+319%), N mineralization (+110%) and organization (+112%) were higher under pig compost than under ammonium nitrate fertilization. On the other hand, the N2O/(N2O+N2) ratio was lower (P
ISSN:0168-6496
1574-6941
DOI:10.1111/j.1574-6941.2006.00064.x