On July 22, a drone sprayed pesticide and fertilizer on high-standard farmland in Liantang'ao Town, Youxian County. During the hot summer season, local major rice planters have seized the opportunity to utilize drones in integrated prevention and control of rice diseases and pests in the fields, to safeguard grain production. (Photo/Li Jian, Hunan Daily)

On July 22, a drone sprayed pesticide and fertilizer on high-standard farmland in Liantang'ao Town, Youxian County. During the hot summer season, local major rice planters have seized the opportunity to utilize drones in integrated prevention and control of rice diseases and pests in the fields, to safeguard grain production. (Photo/Li Jian, Hunan Daily)

On July 22, a drone sprayed pesticide and fertilizer on high-standard farmland in Liantang'ao Town, Youxian County. During the hot summer season, local major rice planters have seized the opportunity to utilize drones in integrated prevention and control of rice diseases and pests in the fields, to safeguard grain production. (Photo/Li Jian, Hunan Daily)

On July 22, a drone sprayed pesticide and fertilizer on high-standard farmland in Liantang'ao Town, Youxian County. During the hot summer season, local major rice planters have seized the opportunity to utilize drones in integrated prevention and control of rice diseases and pests in the fields, to safeguard grain production. (Photo/Li Jian, Hunan Daily)

责编：刘颖

一审：刘颖

二审：冒蕞

三审：张权

来源：湖南日报·新湖南客户端