Discrimination of weed seedlings, wheat (Triticum aestivum) stubble and sunflower (Helianthus annuus) by near-infrared reflectance spectroscopy (NIRS)

Jurado Exposito, M.; Lopez Granados, F.; Atenciano, S.; Garcia Torres, L.; Gonzalez Andujar, J.L.

Crop Protection 22(10): 1177-1180


ISSN/ISBN: 0261-2194
DOI: 10.1016/s0261-2194(03)00159-5
Accession: 004109034

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The potential of using near-infrared reflectance spectroscopy (NIRS) to discriminate between seven broadleaf weed species, sunflower and wheat stubble was evaluated. Our results showed that the spectral window between 750 and 950 nm, which corresponds to near-infrared wavelength, was able to discriminate among wheat stubble, sunflower and the most problematic "hard-to-control" weeds in no-till sunflower, i.e. Little mallow (Malva parviflora L.) and Ecballium elaterium L. These results are promising for further work in real-time remote sensing identification of weed patches in sunflower fields.