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Determining Corn Aflatoxin Risk within Counties in Southern Georgia, USA using Remotely Sensed Data

Published online by Cambridge University Press:  01 June 2017

R. Kerry ,
B. R. Ingram ,
F. Navarro ,
B. V. Ortiz  and
B. T. Scully
R. Kerry*
Affiliation:
Department of Geography, Brigham Young University, UT, USA
B. R. Ingram
Affiliation:
Facultad de Ingeniería, Universidad de Talca, Curicó, Chile
F. Navarro
Affiliation:
Facultad de Ingeniería, Universidad de Talca, Curicó, Chile
B. V. Ortiz
Affiliation:
Agronomy and Soils Department, Auburn University, AL, USA
B. T. Scully
Affiliation:
USDA-ARS, Tifton, GA, USA
*
*E-mail: ruth_kerry@byu.edu
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Abstract

Aflatoxin contamination of food can cause liver cancer in humans and animals. Identification of aflatoxin risk areas allows farmers to adapt management strategies before planting, during growth and at harvest. Aflatoxin contamination is driven by high temperatures and drought conditions and crops grown on light textured soil in the south eastern USA are at particular risk. Aflatoxin assessment is expensive so a role of extension services in precision farming is to identify the areas most at risk of contamination so that farmers can adapt irrigation or planting strategies. This paper extends a county-level risk factors approach developed by Kerry et al. (2017) by investigating the use of NDVI and thermal IR data to indicate drought stress and thus aflatoxin contamination risk at the sub-county level.

Keywords

AflatoxinNDVIThermal infra-redSoilGeostatistics
Type
Information and Decision Support Systems
Information
Advances in Animal Biosciences , Volume 8 , Special Issue 2: Papers presented at the 11th European Conference on Precision Agriculture (ECPA 2017), John McIntyre Centre, Edinburgh, UK, July 16–20 2017 , July 2017 , pp. 640 - 644
Copyright
© The Animal Consortium 2017 

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