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Workers operate a drone to spray foliar fertilizer on kumquat trees in Quantou village, Liuzhou city, South China's Guangxi Zhuang Autonomous region on April 2, 2025.
Workers operate a drone to spray foliar fertilizer on kumquat trees in Quantou village, Liuzhou city, South China's Guangxi Zhuang Autonomous region on April 2, 2025.
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