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Published in Soil Sci Soc Am J 33:560-563 (1969)
© 1969 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Effect of N, P, and K Fertilization on the Mineral Composition of Tobacco1

L. A. Peterson, S. G. Dolar and G. Chesters2

ABSTRACT

The effect of N, P, and K fertilization on the mineral composition of tobacco leaves (Nicotiana tabacum L.) was evaluated under field conditions for three cropping seasons. The amounts of added N, P, and K had a highly significant effect on the leaf concentrations of Ca, Mg, B, Zn, Cu, Mn, and Al and a significant effect on Fe concentration. Correlations between the concentrations of N, P, and K in the leaves and concentrations of the other mineral components of the leaf were similar to those for added N, P, and K.

Nitrogen had a direct effect on Mg and Mn and an inverse effect on B concentrations in the tobacco leaves. Phosphorus had a direct effect on Ca, Mg, and B and an inverse effect on Zn and Cu. Potassium had an inverse effect on Ca, Mg, B, Zn, and Cu. Although not all coefficients were significant, K was inversely correlated to all eight mineral elements.

NOTES

Contribution from the Departments of Horticulture and Soil Science, University of Wisconsin, Madison. Published with the approval of the Director, Wisconsin Agr. Exp. Sta. This investigation was supported in part under Hatch Act, Station Project no. 1335.

2 Associate Professor of Horticulture and Soil Science, Research Assistant in Horticulture, and Professor of Soil Science, respectively.

Received for publication February 6, 1969. Accepted for publication April 4, 1969.






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The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
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Environmental Quality		 The Plant Genome
Copyright © 1969 by the Soil Science Society of America.