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Evaluation of a novel laser-system operating at 1940 nm for weed control and determining the influence of biological and operational factors
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DOI：10.1002/ps.71076.png)
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Abstract
En 中文
This study evaluates a novel laser-based pulse-system for weed control characterized by two primary innovations: a thulium-doped yttrium aluminum perovskite (Tm:YAP) laser operating at a 1940 nm wavelength aligned with the peak water absorption band to maximize photothermal efficiency and the implementation of pulsed laser operation. The system's efficacy was examined across varying weed species (dicots and monocots), growth stages (2–3, 4–5, and 7–8 leaf stages), and target locations (growth meristem and stem), alongside technical parameters including beam diameter (0.1–4.7 mm) and exposure time (0.25–2.5 s) and compared against a continuous-wave (CW) system.
Keywords:
Tm:YAP laser
laser weeding
thermal weed control
water absorption peak
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