Over the rice fields of Jiangxi Nanchang Smart Datian Agricultural Company, a drone is in the air. Guess what it’s spraying? 在江西南昌智慧大田农业公司的水稻基地，无人机来了，你猜猜它在喷洒什么？ #振兴里的江西# #RevitalizingJiangxi# #赣出新精彩#