Published online 24 February 2006
Published in Crop Sci 46:847-853 (2006)
© 2006 Crop Science Society of America
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Nitrogen Uptake and Leaching under Annual Bluegrass Ecotypes and Bentgrass Species
A Lysimeter Experiment
K. Paréa,
M. H. Chantignyb,
K. Careyc,
W. J. Johnstona and
J. Dionned,*
a Dep. of Crop and Soil Sciences, Washington State Univ., Pullman, WA 99164-6420
b Agriculture and Agri-Food Canada, Sainte-Foy, QC, Canada G1V 2J3
c Dep. of Plant Agriculture, Univ. of Guelph, Guelph, ON, Canada N1G 2W1
d Royal Canadian Golf Assoc., Golf House, 1333 Dorval Dr., Oakville, ON, Canada L6M 4X7

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Fig. 1. Concentration of NO3N in leachates collected under annual bluegrass ecotypes from Canada and the USA, and bentgrass (Agrostis spp.) species grown in lysimeter columns for 57 d with fertilizer application every 14 d during 2002 at Guelph, ON, Canada. Arrows indicate the fertilizer treatment application day. Concentrations are averaged across ecotypes or cultivars.
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Fig. 2. Cumulative NO3N leaching under annual bluegrass ecotypes from Canada and the USA, and bentgrass species grown in lysimeter columns for 57 d with fertilizer application every 14 d during 2002 at Guelph, ON, Canada. Cumulative leaching is averaged across ecotypes or cultivars.
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Fig. 3. Relationships between (a) total N uptake and total biomass and (b) total N uptake and total NO3N leached under various annual bluegrass ecotypes and bentgrass species grown in lysimeter columns for 57 d with fertilizer application every 14 d during 2002 at Guelph, ON, Canada.
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Copyright © 2006 by the Crop Science Society of America.