L. Harper
发表
Ray Leuning,
Lowry A. Harper,
David W. T. Griffith,
1998
.
Nitrogen cycling through swine production systems: ammonia, dinitrogen, and nitrous oxide emissions.
A. De Visscher,
T. Parkin,
L. Harper,
2004,
Journal of environmental quality.
R. R. Bruce,
W. M. Snyder,
R. Leonard,
1975
.
W. Parton,
J. Morgan,
L. Harper,
1988
.
L. Harper,
R. R. Sharpe,
1995
.
Philip W. Westerman,
Lowry A. Harper,
J. Arogo,
2002
.
Lowry A. Harper,
L. Harper,
R. R. Sharpe,
1999
.
Timothy B. Parkin,
Lowry A. Harper,
T. Parkin,
2000
.
J. D. Simmons,
Lowry A. Harper,
L. Harper,
2001
.
L. Harper,
R. R. Sharpe,
R R Sharpe,
2002,
Journal of environmental quality.
Thomas K. Flesch,
O. T. Denmead,
T. Flesch,
2011
.
J. Wilson,
T. Flesch,
L. Harper,
2010,
Poultry science.
O. Denmead,
L. Harper,
R. R. Sharpe,
2000
.
O. Denmead,
L. Harper,
J. Freney,
1999,
Journal of animal science.
R. R. Bruce,
R. Leonard,
L. Harper,
1976
.
G. Langdale,
L. Harper,
R. R. Sharpe,
1988
.
G. Langdale,
L. Harper,
R. R. Sharpe,
1987
.
S. R. Wilkinson,
L. Harper,
J. E. Box,
1980
.
Jeffrey W. White,
L. Ziska,
J. Bunce,
2005
.
Jeffrey W. White,
L. Ziska,
J. Bunce,
2005
.
J. Hesketh,
L. Harper,
J. E. Box,
1973
.
R. Leonard,
L. Harper,
J. Turnbull,
1977
.
A. Mosier,
J. Duxbury,
L. Harper,
1993
.
John D. Wilson,
T. Flesch,
L. Harper,
2010,
Journal of environmental quality.
L. Harper,
V. R. Catchpoole,
R. Davis,
1983
.
L. Harper,
W. Corré,
D. W. Bussink,
1996
.
L. Harper,
W. Corré,
H. V. D. Meer,
1996
.
L. Naeher,
S. Rathbun,
J. Worley,
2010
.
T. Flesch,
L. Harper,
C. Ritz,
2021,
Journal of environmental quality.
A. Franzluebbers,
L. Harper,
R. R. Sharpe,
2004,
Journal of environmental quality.
L. Harper,
J. Selby,
H. Adam,
2013
.
L. Harper,
I. Vallis,
V. Catchpoole,
1983
.
A. Mosier,
J. Duxbury,
L. Harper,
1993
.
L. Harper,
R. R. Sharpe,
L. A. Harper,
1997
.
N. A. Cole,
R. Todd,
T. Flesch,
2007
.
Lowry A. Harper,
Thomas K. Flesch,
John D. Wilson,
2005
.
L. Harper,
Lowry A Harper,
Kim H Weaver,
2006,
Journal of environmental quality.
T. Flesch,
L. Harper,
J. Powell,
2009,
Journal of dairy science.
Lowry A. Harper,
Thomas K. Flesch,
John D. Wilson,
2004
.
L. Harper,
2017
.
N. A. Cole,
R. Todd,
T. Flesch,
2008
.
T. Flesch,
K. Ro,
L. Harper,
2018
.
T. Flesch,
L. Harper,
J. Powell,
2009
.
L. Harper,
V. R. Catchpoole,
D. Oxenham,
1983
.
R. Desjardins,
T. Flesch,
L. Harper,
2009
.
T. Flesch,
L. Harper,
K. Beauchemin,
2006,
Journal of environmental quality.
R. R. Bruce,
J. E. Pallas,
L. Harper,
2022
.
R. R. Bruce,
J. E. Pallas,
L. Harper,
1980
.
D. Coleman,
G. Langdale,
P. Hendrix,
1995
.
T. Flesch,
L. Harper,
John D. Wilson,
2001
.
L. Harper,
2015
.
L. Harper,
R. R. Sharpe,
L. A. Harper,
1995,
Fertilizer research.
A. De Visscher,
L. Harper,
O. van Cleemput,
2022,
Journal of environmental quality.
L. Harper,
R. R. Sharpe,
F. M. Byers,
2002
.
G. Langdale,
L. Harper,
R. R. Sharpe,
1989
.
T. Flesch,
L. Harper,
T. Coates,
2023,
Atmospheric Environment: X.
G. H. Willis,
L. Harper,
Shannon R. Smith,
1983
.
D. Massé,
R. Desjardins,
M. McBain,
2004
.
L. Harper,
I. Vallis,
L. A. Harper,
1982
.