Volatilization of Nitrogen-Containing Compounds from Beef Cattle Areas1
- L. F. Elliott,
- G. E. Schuman and
- F. G. Viets2
The release of NH3 plus steam-distillable organic N compounds to the atmosphere from a small beef feedlot and a pasture was measured. Acid traps placed next to the feedlot and 0.8 km from the feedlot averaged 148 and 16 kg/ha per yr NH3 plus steam-distillable organic N compounds, respectively. The same traps averaged 21 and 3.3 kg/ha per yr, respectively, of organic N compounds that were not recovered by the 3-min steam distillation procedure. Feedlot disturbances, such as manure mounding, increased volatilization of N compounds. Ammonia plus steam-distillable organic N compounds trapped near a cattle pasture and cropland averaged 15 and 11 kg/ha per yr, respectively. Organic N compounds not recoverable by the 3-min steam distillation were very low in the areas.
Normally, steam distillation values represent only NH3; however, in this case, other N-containing compounds were distilled over and titrated as NH3.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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