Cost and Workload Assessment of Agricultural Drone Sprayer: A Case Study of Rice Production in Japan

Shotaro Umeda (), Naoki Yoshikawa and Yuna Seo
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Shotaro Umeda: Department of Industrial Administration, Graduate School of Science and Technology, Tokyo University of Science, Tokyo 162-8601, Japan
Naoki Yoshikawa: Department of Environmental Policy and Planning, School of Environmental Science, The University of Shiga Prefecture, Hikone 522-8533, Japan
Yuna Seo: Department of Industrial Administration, Graduate School of Science and Technology, Tokyo University of Science, Tokyo 162-8601, Japan

Sustainability, 2022, vol. 14, issue 17, 1-11

Abstract: The shortage of labor is one of the major challenges facing agriculture in Japan. Technological innovations are required to overcome the limitations of the workload per worker. One such innovation is smart agriculture, which utilizes advanced technologies such as robots, AI, and IoT. This study aimed to provide data on the workload and pest control costs for the development of sustainable agriculture. The cost of pest control was compared between a boom sprayer, power sprayer, and unmanned aerial vehicles (UAVs) for two model rice farmers. The Ovako Working Posture Analysis System (OWAS) and metabolic equivalent (METs) were used to measure workloads while using UAVs. The labor cost was reduced to half with the usage of UAVs compared with conventional machines. The resulting METs, or physical activity during pest-control work using UAVs, could be lower than those when using pest control machines. Through OWAS, 63.86% of the total jobs using UAVs were identified as having a low risk of musculoskeletal injury. The results suggest that UAVs could compensate for the shortage of workers, and these are effective tools to support the expansion of the agricultural area.

Keywords: pest-control sprayer; unmanned aerial vehicles; cost; METs; OWAS (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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