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Published in Soil Sci Soc Am J 22:137-140 (1958)
© 1958 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Effects of Potassium, Magnesium, and Micronutrient Fertilization on Snap Bean Yields and Plant Composition1

Lloyd F. Seatz, T. R. Gilmore and A. J. Sterges2

ABSTRACT

Snap beans were fertilized with 4 levels of Mg at each of 2 levels of K, and with Mn, Cu, Zn, and a micronutrient mixture at a single K level. Bean yields were not affected by any of the treatments.

Top leaves, bottom leaves, and leaf petioles were taken for chemical analysis when the beans were in the early bloom stage of growth. Mg content of the bottom leaves was higher than that of the top leaves and petioles. Mg content increased with Mg applied and was higher at low K than at the high K level. Ca was also higher in the bottom leaves than in the top leaves or petioles. K content was higher in petioles than in leaves, and was higher at high K than at the low K level. No Mg effect was apparent.

Mg content of petioles increased regularly with Zn < Mn < Cu < Mixture treatments. Zn, Mn, and Cu increased the Ca content of the bottom leaves. Zn reduced the K content of the bottom leaves.

Bottom leaves contained a higher content of cations followed by petioles and top leaves.

NOTES

1 Contribution from the Departments of Agronomy and Horticulture, Tennessee Agr. Exp. Sta., Knoxville. Presented before Div. IV, Soil Science Society of America, Atlanta, Ga., Nov. 22, 1957.

2 Agronomist, Associate Horticulturist, and Associate Soil Chemist, respectively.

Received for publication July 12, 1957. Accepted for publication December 2, 1957.






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and Life Sciences Education		 Vadose Zone Journal
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Environmental Quality		 The Plant Genome
Copyright © 1958 by the Soil Science Society of America.