On the morning of March 9, with the humming sound of the propellers, four plant protection drones quickly launched into the air for spraying operations, and completed the spraying task of more than 400 acres in less than half a day.

Sclerotinia sclerotiorum in rapeseed can lead to no harvest of grains. Drones and agriculture The flowering period of rapeseed every year is a critical period for chemical control. This year, Liuyang launched the unified prevention and control of rape sclerotinia by drones for the first time. The government invested 500,000 yuan to purchase services, and the prevention and control coverage covered 15,000 mu of rapeseed bases in 16 key towns and towns in the city.

For Tang Huaqing, the owner of the rapeseed base, using a plane to apply medicine to rape is also a "new thing". He is the head of the Huamin Planting and Breeding Professional Cooperative in Liuyang City. He is entrusted by the Municipal Agricultural Development Affairs Center and is responsible for the field management of the screening test of new rapeseed varieties in the city. It would take several days to get five or six people."

Agricultural drones control has obvious advantages in efficiency. According to Qu Xiang, who is in charge of this flight defense mission, "A plant protection drone can spray 10 acres in 10 minutes. Counting the time for replacing batteries and adding chemicals, an average of one day About 300 acres can be sprayed, and the efficiency is more than 15 times that of manual work."

In addition to the efficiency advantage, the spraying effect of the agricultural drones is also very prominent. At the flight control site, the plant protection drone sprayed the pesticide evenly on the rapeseed branches and leaves in the form of mist. "In this way, not only the control effect is better, but the amount of pesticides can also be reduced by 20%, so as to achieve the 'two reduction' goals of reducing pesticide application and reducing pests and diseases." Feng Chunshui, a plant protection expert at the Municipal Agricultural Development Affairs Center, said.