Abstract: A system and methods for controlling the seed depth of a row planter utilizing sensed angle data from an angle sensor operably connected to a gauge wheel, the angle data corresponding to the height of the planter frame above the soil surface. The system comprises a piston assembly operably connected to a pump controlled by a processor. The processor is configured to actuate the pump based on the sensed angle data transmitted to the processor. The piston assembly configured to pivot the planter frame through and about a link assembly connected between the piston assembly and the planter frame. Methods for controlling seed depth utilizing sensed angle data from an angle sensor operably connected to a gauge wheel.

Abstract: Provided is an apparatus and method for controlling seed population for a conventional row crop planter utilizing a microprocessor, information from a seed population controller provided with the conventional row crop planter, a GPS or other locating or positioning device and motors for driving the conventional seed metering system of the planter. The microprocessor further feedback from the motors and compares the actual seed population data with the desired density and adjusts the output of the motors to compensate for variations in seed population densities.