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Published online 1 May 1963
Published in Agron J 55:242-244 (1963)
© 1963 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Controlling Release of Fertilizer Constituents by Means of Coatings and Capsules1

W. C. Dahnke, O. J. Attoe, L. E. Engelbert and M. D. Groskopp2

Synopsis: Placement of fertilizers in polyethylene capsules effectively controlled the rate of release of the fertilizer constituents for corn and Kentucky bluegrass in the field, but did not significantly increase yield or recovery of the constituents. In the greenhouse, significant increases in recovery of N were obtained by corn for (NH42SO4 coated with wax and pelleted, but yields were not significantly affected.

1 Contribution from the Department of Soils, University of Wisconsin, Madison. Published with the approval of the Director, Wisconsin Agr. Exp. Sta. Part of a dissertation submitted by the senior author in partial fulfillment of the requirements for the Ph.D. degree at the University of Wisconsin. This work was supported in part by the Research Committee of the Graduate School with funds from the Wisconsin Alumni Research Foundation. This paper was presented at the annual meeting of the Soil Science Society of America held at Chicago, Illinois, November, 1960.

2 Formerly Research Assistant in Soils (now a member of the Peace Corps stationed in El Salvador); Professor of Soils; Professor of Soils; and Assistant Professor in charge of Branch Station at Hancock.

Received for publication August 17, 1962.




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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 © 1963 by the American Society of Agronomy.