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Published in Soil Sci Soc Am J 33:306-309 (1969)
© 1969 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Effect of Phosphorus Carriers and Zine Sources on Phosphorus-Zine Interaction in Corn1

R. B. Ganiron, D. C. Adriano, G. M. Paulsen and L. S. Murphy2

ABSTRACT

Growth of corn (Zea mays L.) seedlings in solution cultures responded to temperature > Zn rate > P carrier > Zn source. Phosphorus accumulated in roots and shoots of Zn-deficient seedlings at the higher temperature, but was depleted from roots when seedlings were supplied with Zn. Nearly similar Zn concentrations were usually present in roots and shoots of seedlings grown at the lower temperature, suggesting that temperature affected soil Zn availability more than uptake or translocation. Monoammonium phosphate (MAP) was slightly more favorable for growth than ammonium polyphosphate (APP), but APP increased P uptake more than MAP. Chelated Zn was a slightly more efficient source than Zn sulfate.

Phosphorus depressed corn grain yields when soil Zn levels were low. Applying Zn increased grain yields only to levels produced without P fertilization. Concentrations of P in the leaves varied inversely with the rate of Zn fertilization, but concentrations of Zn were not affected markedly by the treatments. APP and chelated Zn were only slightly better sources than MAP and Zn sulfate, respectively.

NOTES

1 Contribution no. 1057, Department of Agronomy, Kansas Agr. Exp. Sta.

2 Graduate Research Assistant (deceased), Research Assistant, and Associate Professors, respectively, Department of Agronomy, Kansas State University, Manhattan 66502.

Received for publication August 20, 1968. Accepted for publication September 3, 1968.






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The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
and Life Sciences Education		 Vadose Zone Journal
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Environmental Quality		 The Plant Genome
Copyright © 1969 by the Soil Science Society of America.