A drone flies over a piece of farmland, about a couple of meters above the crops, spraying exact amounts of pesticide with unparalleled precision. In three minutes, the spraying for a mu of land, equivalent to about 0.0667 hectare, is done.
Such use of drone technology is a growing practice in rural China, where some 120 million hectares of land are being farmed to feed the country’s 1.4 billion population. As young people quit the land to go to the city in search of more lucrative work, drones are a big help to farmers faced with labor shortage.
Since drones are operated by professional...
