The present invention provides a precision agricultural-device control system (100) for controlling agricultural implements (such as seed feeders and fertilizer sprayers) (22 or 24) on a line planter (20). More particularly, a command and control module (110) is provided that is in communication with an interface module (140) and provides commands in accordance with a field prescription (116). The interface module (140) wirelessly transmits command messages to the agricultural implements (22 or 24) and receives monitoring messages from the agricultural implements. In certain embodiments, a novel, low latency and high reliability wireless protocol (200 or 300) using repeats (e.g., 320), 342) is used to communicate wirelessly with the agricultural implements (22 or 24).
