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The Effect of Postemergence Herbicides on the Spectral Reflectance of Corn

Published online by Cambridge University Press:  20 January 2017

Wesley J. Everman ,
Case R. Medlin ,
Richard D. Dirks Jr. ,
Thomas T. Bauman  and
Larry Biehl
Wesley J. Everman
Affiliation:
P.O. Box 7620, Crop Science Department, North Carolina State University, Raleigh, NC 27695-7620
Case R. Medlin*
Affiliation:
Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, OK
Richard D. Dirks Jr.
Affiliation:
Department of Botany and Plant Pathology, and Research Technician, Agronomy Department, Purdue University, West Lafayette, IN 47906
Thomas T. Bauman
Affiliation:
Department of Botany and Plant Pathology, and Research Technician, Agronomy Department, Purdue University, West Lafayette, IN 47906
Larry Biehl
Affiliation:
P.O. Box 7620, Crop Science Department, North Carolina State University, Raleigh, NC 27695-7620
*
Corresponding author's E-mail address: E-mail: mcase@okstate.edu
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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.

Keywords

Atrazine, bromoxynil, 2,4-D, dicamba + diflufenzopyr, nicosulfuron, primisulfuroncorn, Zea mays L.Precision agricultureprecision weed controlsite-specific herbicide application
Type
Weed Management — Techniques
Information
Weed Technology , Volume 22 , Issue 3 , September 2008 , pp. 514 - 522
Copyright
Copyright © Weed Science Society of America 

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