L A Harper

Summary

Affiliation: University of Georgia
Country: USA

Publications

  1. ncbi Direct measurements of methane emissions from grazing and feedlot cattle
    L A Harper
    Southern Piedmont Conservation Research Unit, JPCSNRCC USDA Agricultural Research Service, Watkinsville, GA 30677, USA
    J Anim Sci 77:1392-401. 1999
  2. ncbi Nitrous oxide and ammonia fluxes in a soybean field irrigated with swine effluent
    R R Sharpe
    Southern Piedmont Conservation Research Center, USDA ARS, Watkinsville, GA 30677, USA
    J Environ Qual 31:524-32. 2002
  3. ncbi Ammonia volatilization from surface-applied poultry litter under conservation tillage management practices
    R R Sharpe
    Southern Piedmont Conservation Research Unit, USDA ARS, 1420 Experiment Station Road, Watkinsville, GA 30677, USA
    J Environ Qual 33:1183-8. 2004

Collaborators

Detail Information

Publications3

  1. ncbi Direct measurements of methane emissions from grazing and feedlot cattle
    L A Harper
    Southern Piedmont Conservation Research Unit, JPCSNRCC USDA Agricultural Research Service, Watkinsville, GA 30677, USA
    J Anim Sci 77:1392-401. 1999
    ....
  2. ncbi Nitrous oxide and ammonia fluxes in a soybean field irrigated with swine effluent
    R R Sharpe
    Southern Piedmont Conservation Research Center, USDA ARS, Watkinsville, GA 30677, USA
    J Environ Qual 31:524-32. 2002
    ..5% of total N applied. The large losses of NH3 and N2O illustrate the difficulty of basing effluent irrigation schedules on N concentrations and that NH3 emissions can significantly contribute to N enrichment of the environment...
  3. ncbi Ammonia volatilization from surface-applied poultry litter under conservation tillage management practices
    R R Sharpe
    Southern Piedmont Conservation Research Unit, USDA ARS, 1420 Experiment Station Road, Watkinsville, GA 30677, USA
    J Environ Qual 33:1183-8. 2004
    ..Application of poultry to conservation-tilled cropland immediately before rainfall events would reduce N losses to the atmosphere but could also increase NO(3) leaching and runoff to streams and rivers...