Spatial analysis of mycotoxins in stored grain to develop more precise management strategies

R. Kerry, B. Ingram, E. Garcia-Cela, N. Magan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)
55 Downloads (Pure)


Mycotoxins are harmful to human and animal health so legislative limits in stored cereals must not be exceeded. The spatial distribution of many different mycotoxins in grain silos is largely unknown. Spatial analysis is needed for precise management of stored grain to minimize waste, prevent rejection of lots and maximize profit. This study re-analysed existing datasets where spatial analysis was hindered by highly-skewed data. Here the normal score transform was used. Dataset 1: Cross-variograms and bi-variate local Moran's I (LMI) analysis showed spatial structure and co-variation in two toxins. Dataset 2: 3D spatial analysis showed spatial structure was stronger and concentrations were higher in the outer layers of the grain and where moisture collects under the influence of gravity.
Original languageEnglish
Title of host publicationPrecision agriculture ’19
EditorsJohn V. Stafford
PublisherWageningen Academic Publishers
Number of pages7
ISBN (Electronic)9789086868889
ISBN (Print)9789086863372
Publication statusPublished - 11 Jul 2019
EventEuropean Conference on Precision Agriculture - Montpellier, France
Duration: 8 Jul 201911 Jul 2019
Conference number: 12


ConferenceEuropean Conference on Precision Agriculture
Abbreviated titleECPA 2019


  • Grain storage
  • Local Moran's I
  • Mycotoxins
  • Spatial analysis
  • Variogram


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