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Published online 1 May 1963
Published in Agron J 55:247-250 (1963)
© 1963 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Chemical Composition of Kentucky Bluegrass (Poa pratensis) as a Function of Applied Nitrogen, Phosphorus, and Potassium1

William M. Walker and John Pesek2

Synopsis: The mean percentages of N, P, and K in clippings were determined and expressed as functions of the applied fertilizer by multiple regression methods. The coefficients of determination for the 3 functions were all above 0.97, indicating that quadratic functions with linear x linear interactions served to express the relationships well.

1 Journal Paper J-4432 of the Iowa Agricultural and Home Economics Experiment Station, Ames, Iowa, Project No. 1189.

2 Research Associate and Professor of Soils. The senior author is now Assistant Agronomist, University of Tennessee Extension Service.

Received for publication August 22, 1962.




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Copyright © 1963 by the American Society of Agronomy.