Ключевые слова: aerial, agricultural, agriculture, background, chemical, control, copter, drone, environment, equipment, farm, farmer, farming, fertilizer, field, flower, fly, fresh, green, grow, growth, harvest, helicopter, herbicides, industry, irrigation, land, meadow, modern, natural, nature, pesticides, plant, plant diseases, plant protection, prevention, professional, quadrocopter, remote, rural, science, spray, spring, sprinkler, system, tea, technology, thailand, vehicle, water,