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Weed Management Using UAV and Remote Sensing in Malaysia Paddy Field: A Review

Zaid Ramli, Abdul Shukor Juraimi, Mst. Motmainna, Nik Norasma Che’Ya, Muhammad Huzaifah Mohd Roslim, Nisfariza Mohd Noor and Anuar Ahmad

Pertanika Journal of Social Science and Humanities, Volume 32, Issue 3, April 2024

DOI: https://doi.org/10.47836/pjst.32.3.13

Keywords: Hyperspectral remote sensing, paddy field, unmanned aerial vehicle (UAV), weed management

Published on: 24 April 2024

Controlling weed infestation is pivotal to achieving the maximum yield in paddy fields. At a time of exponential human population growth and depleting arable land mass, finding the solution to this problem is crucial. For a long time, herbicides have been the most favoured approach for weed control due to their efficacy and ease of application. However, adverse effects on the environment due to the excessive use of herbicides have prompted more cautious and effective herbicide usage. Many weed species tend to dominate the field, and the weed thrived in patches, rendering conventional broad herbicide spraying futile. Site-specific weed management (SSWM) consists of two strategies: weed mapping and selective herbicide application. Since its introduction into the agriculture sector, unmanned aerial vehicles (UAV) have become the platform of choice for carrying both the remote sensing system for weed mapping and the selective application of herbicide. Red-Green-Blue (RGB), multispectral and hyperspectral sensors on UAVs enable highly accurate weed mapping. In Malaysia, adopting this technology is highly possible, given the nature of government-administrated rice cultivation. This review provides insight into the weed management practice using remote sensing techniques on UAV platforms with potential applications in Malaysia 's paddy field. It also discusses the recent works on weed mapping with imaging remote sensing on a UAV platform.

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