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Nippon Telegraph and Telephone ( NTT ) will test a support service for today 's agriculture industry which combines drones with AI technology , aiming to increase crop yields by 30 % and address the current labour shortage . The system analyses images of crops to determine their condition and identify the optimum time to use fertiliser . drone 's service will be trialled on an eight - hectare rice field in Fukushima Prefecture until early 2020 , with commercial phase - outs also anticipated in the next two years .