Agronomy Journal Journal of Natural Resources and Life Sciences Education
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Published online 1 March 1964
Published in Agron J 56:152-155 (1964)
© 1964 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Performance of Five Orchardgrass Varieties Under Different Nitrogen Treatments1

A. D. Dotzenko and K. E. Henderson2

Synopsis: Five orchardgrass varieties from diverse areas of the United States were evaluated for forage yield, total N and P content, recovery of applied N and NO3 accumulation under 4 levels of N fertilization. Varieties showed marked increases in yield, total N and NO3 content as the rates of applied N fertilizer were increased, but showed lower P and N recovery percentages. Marked varietal differences were also found.

1 Published with the approval of the Director of the Colorado Agricultural Experiment Station as Scientific Series Paper No. 856.

2 Associate Agronomist and Graduate Research Assistant, Agronomy Section, Colorado Agr. Exp. Sta. Fort Collins, Colo.

Received for publication April 18, 1963.




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Copyright © 1964 by the American Society of Agronomy.