HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Myhre, D. L. Articles by Ogden, W. B. Search for Related Content PubMed Articles by Myhre, D. L. Articles by Ogden, W. B. Agricola Articles by Myhre, D. L. Articles by Ogden, W. B.

Chlorine and Other Constituents in Relation to Tobacco Leaf-Burn¹

ABSTRACT

A study was made to evaluate the influence of chlorine and other constituents on tobacco leaf-burn (capacity to hold fire when ignited). Samples of tobacco plants and soil at different depths were taken from 33 fields located in the 2 tobacco growing districts in Wisconsin in 1952, and the data concerning chemical composition and leaf-burn were subjected to statistical analyses. The amount of chlorine taken up by the crops was most closely correlated (r = 0.79) with that found in the 0 to 12-inch layer of soil. On the average, about of the chlorine found in this layer was taken up by the crops. A highly significant coefficient of multiple correlation, R = 0.80, was found for the relation between log leaf-burn and the contents of chlorine, sulfur, nitrogen, and potassium of the tobacco leaves. A comparison of the standard coefficients indicated that potassium is about 1.2 times more beneficial to leaf-burn than either chlorine or nitrogen is detrimental, and about 2.4 times as beneficial as sulfur is deterimental.

¹ Part of a thesis submitted to the faculty of the Univ. of Wisconsin by the senior author in partial fulfillment of the requirements for the Ph.D. degree. This investigation was supported in part by funds provided by the Wisconsin Alumni Research Foundation. Published with the permission of the Director of the Wisconsin Agr. Exp. Sta., Madison, Wis.

² Formerly Research Assistant in Soils at the Univ. of Wisconsin, now Assistant Soils Chemist at Potato Investigations Laboratory, Agr. Exp. Sta., Univ. of Florida, Hastings, Fla., Professor of Soils and Associate Professor of Horticulture, respectively, Univ. of Wisconsin.

Received for publication November 26, 1954.