On the morning of March 1st, the author arrived at Sandongbei Village, Datong Town, Jialing District. On that day, it was his turn to carry out the integrated pest control and governance operation in the village. He saw two drones flying in the sky, spraying liquid medicine. The drone had a length and width of 2 meters, and there was a cartridge in the center. Liquid medicine was sprayed from a nozzle under the cartridge. Professional and technical personnel were standing on the ground for remote control, with various items such as cartridges, batteries, and water pipes placed beside it.
“Compared with conventional manual dosing with spray, UAV has high dosing efficiency, good atomization degree and more uniform dosing.” Xiong Xiaohui, general manager of Sichuan Weinong Modern Agricultural Technology Co., Ltd., told the author that using spray to dispense drugs, one person can complete up to 10 mu a day, while one UAV can complete 200 mu a day, saving time and greatly improving efficiency. At the same time, the spray head used by the drone for spraying medicine is a superfine atomizing spray head, which sprays out a higher degree of atomization of the liquid, and the flight speed of the drone is approximately the same, ensuring that the crop receives medicine evenly per unit area.
“In the past, it used to take 10 workers to spray medicine, which not only required huge salaries, but also high food costs.” Looking at the drone in the air, an orchard owner, Qiao Wei, said that in the past, it used to cost 70 yuan per person per day to hire workers to spray medicine. It took a week to complete a 700 mu garden, and a total cost of 4900 yuan. Now, drone spraying not only saves labor costs, but also takes only one and a half days to complete.
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