Unformatted text preview: DENITRIFICATION What conditions are conducch to dcnitrification‘.’
- Nitrogen must be present in the NOfform. - Temperatures must be high enough to promote
activity. - A carbon source must be present (rarely limiting). - Oxygen must be depleted. DENITRIFICATION Typical loss period is during hcayy sunnncr precipitation.
Heayy rain on a well-drained humid soil ~ 10 kg ha-1 Saturating a poorly drained fertilized field ~ 30-60 kg ha-1 DENITRIFIC ATION strate gies
Prevent nitrification of N sources
temperature“ cool temperatures In rice culture use ammonium sources. do not allow
nitrification (i.e. don‘t allow soil to dry) Encouraging denitrification: High C a low Oz environment ...
View Full Document
- Spring '08