眼下，正是春耕春管的关键时期，各地抢抓农时，利用现代科技助力春耕春管，为全年粮食稳产丰收夯实基础。 A drone is used to spread pesticide on fields in Hushan, Rongcheng. [Photo by Li Xinjun/for China Daily] It was cloudy on Thursday in Mazhuang, a town ...