Meet the DJI Agras T20: an agricultural drone with 20L load capacity that can cover 12 hectares per hour. It has a 4-channel independent flow control for even application. The drone has an omnidirectional radar with 360-degree 3D scene reconstruction that enable it to avoid obstacles autonomously.
The T20 is capable of autonomous operation on a wide variety of terrains. The above video shows it in action.