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Published online 1 March 1956
Published in Agron J 48:111-116 (1956)
© 1956 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Availability of Phosphate Carriers to Small Grains and Subsequent Clover in Relation To: II. Concurrent Soil Amendments1

R. A. Olson, A. F. Dreier, G. W. Lowrey and A. D. Flowerday2

Synopsis: Ammonium-N in contact with fertilizer P increased P uptake by wheat and oats with super- and metaphosphates. Potassium had no appreciable influence on P uptake. Liming acid soils reduced the effectiveness of most phosphate carriers to oats, but increased slightly their residual value for sweetclover. Sulfur addition to calcareous soils had little influence on carrier utilization by oats but caused somewhat greater uptake of all carriers by subsequent clover

1 Contribution from the Dept, of Agronomy, Nebraska Agr. Exp. Sta. Approved by the Director as Paper No. 739, Journal Series. Grateful acknowledgement is made to the Olin Mathieson Chemical Corp. for a grant-in-aid supporting this work, to the Tennessee Valley Authority for supplying some of the materials, and to the Div. of Fertilizers and Lime, S.W.C.R.B., U.S.D.A. for supplying P33 tagged fertilizer materials.

2 Associate Professor, Assistant Agronomist and Assistants in Agronomy, respectively.

Received for publication October 22, 1955.




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The SCI Journals Crop Science Vadose Zone Journal
Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal
Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome
Copyright © 1956 by the American Society of Agronomy.