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Hamamatsu Corp. - Earth Innovations LB 2/24

Crop-Spraying System Targets Weeds

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Nadya Anscombe

When farmers want to spray their crops, they can either blanket spray the entire field, or spray spots by hand. Blanket spraying is not only detrimental to the environment, but also leads to yield losses; and spot spraying is time-consuming, labor-intensive and simply not viable for today’s farming methods. Soon farmers will have another option. Researchers in Australia are developing an automated crop-spraying system that can discriminate among any number of crops, weeds and soils in a field at the traveling speed of a farming vehicle. Using laser technology, the system discriminates...Read full article

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    Published: February 2007
    Glossary
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    near-infrared
    The shortest wavelengths of the infrared region, nominally 0.75 to 3 µm.
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    Accent on ApplicationsApplicationsautomated crop-spraying systemnanonear-infraredphotonicsSensors & Detectors

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