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The Effect of Postemergence Herbicides on the Spectral Reflectance of Corn

Wesley J. Everman, Case R. Medlin, Richard D. Dirks, Jr., Thomas T. Bauman and Larry Biehl
Weed Technology
Vol. 22, No. 3 (Jul. - Sep., 2008), pp. 514-522
Stable URL: http://www.jstor.org/stable/25195078
Page Count: 9
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
The Effect of Postemergence Herbicides on the Spectral Reflectance of Corn
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Abstract

Studies were conducted in 2001 and 2002 to determine the effect of POST herbicides on the spectral reflectance of corn. POST corn herbicides evaluated included 2,4-D, atrazine, bromoxynil, dicamba + diflufenzopyr, nicosulfuron, and primisulfuron. Multispectral and hyperspectral data were collected and spectral properties were analyzed using SAS procedures and MultiSpec image analysis. Corn treated with POST applications of atrazine and primisulfuron could not be distinguished from nontreated corn regardless of data type or analysis method used. 2,4-D and dicamba + diflufenzopyr were the most readily distinguished from nontreated corn plots using both hyperspectral and multispectral data.

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