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Aerial spraying and dusting in agriculture
1
Agricultural engineering
9
Agricultural extension work
1
Agricultural facilities
1
Agricultural implements
1
Agricultural machinery
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22
Agriculture -- Research
3
Automation -- Human factors
1
Design -- Human factors
1
Employees -- Workload
1
Farms
1
Fertilizers
1
Force and energy
1
Freeze-drying
2
Harvesting machinery
1
Human engineering
1
Lifting and carrying
1
Mathematics
1
Patents
2
Pesticides
2