1) UC Davis have developed this GPS based intra-row weed knife control system. Its fully automated. An RTK GPS transplanter created map is used to control the opening and closing of the knives. Their next step …is incorporating a sensor “see” the location of the plant, and use that info to control the opening and closing of knives.
2) UC Davis have also developed a system for RTK GPS mapping of transplanted crops. This maps at centimetre -level accuracy. Data from this system is sued for their intra-row weeding system