Agronomy Journal Journal of Natural Resources and Life Sciences Education
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Published online 1 March 1962
Published in Agron J 54:101-106 (1962)
© 1962 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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The Sulfur Status and Sulfur Supplying Power of Oregon Soils1

M. E. Harward, Tsun Tien Chao and S. C. Fang2

Synopsis: Levels of organic S in soils were found to range from < 100 to > 700 ppm. Correlation coefficients for relative yields of alfalfa were in the order: sulfur "A" values, % S in plant, and extractable S plus sulfate release on incubation. A sulfur "A" value of 20 pounds per acre and a plant content of 0.22% S represented levels above which little response occurred. S application may affect nitrogen relationships of alfalfa.

1 Technical Paper No. 1395, Oregon Agr. Exp. Sta., Oregon State University, Corvallis, Oregon. Supported in part through the financial assistance by the U.S. Atomic Energy Commission (NO. AT(45-1) 1063).

2 Associate Professor, Assistant Professor, and Associate Professor, respectively.






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The SCI Journals Crop Science Vadose Zone Journal
Journal of Natural Resources
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Environmental Quality		 The Plant Genome
Copyright © 1962 by the American Society of Agronomy.