







Drawing on BeiDou Navigation Satellite System (BDS), Professor Zhang Ruihong from the engineering school of Yangzhou University, along with his team, have made a breakthrough in weed control of paddy fields.
The team has developed a mechanical weeding robot, which is designed specifically for unmanned weeding in rice fields. Research on this robot began in 2018 and the technology required, such as mechanization and unmanned navigation, has been sufficiently developed, laying the groundwork for the first -round trial of automatic weeding among rice.
One important feature of this tech is accuracy. Zhang's team developed independently a digitalized system channeling BDS to equip the robot with navigation functions.
This constitutes how the amount of herbicide used could be largely reduced as weeds among rice are now targeted section by section.
"If our program succeeds as expected and our technologies are accepted widely, the amount of herbicide used today could be reduced by about 70 to 80 percent," said Zhang. Apart from lowering the cost by reduced staff, this method will also protect the environment.
"We are also preparing to launch a system next year that helps mix manure in the soil, after which all farmland weeding practices could be automated," said Zhang.