Abstract: A liquid mixing station controlled by a computer to dispense predetermined amounts of liquid inputs based on parameters provided by an operator or program. Specifically, the invention is designed to accurately mix liquids and has an inner frame associated with a recipient tank, and an outer frame associated with the inner tank by load bars connected to the computer. The load bars signal the computer regarding weight change on the inner frame. Associated with the outer frame are minor input containers, each in fluid communication with a unique conduit and means to convey the fluid controlled by the computer. The parameters are used by a selected program and the CPU to provide appropriate ratio, sequence, and isolation of inputs. The station includes means for full removal and mix of all contents in a container, full removal of all contents from the recipient, and full clean-out of main conduit.

Abstract: A seed metering apparatus having a selectably actuated panel positioned between the metering apparatus and discharge chute, the panel moving between an open position and a closed position such that seeds may be more accurately spaced and metered without disrupting the drive mechanism of the seed metering apparatus. A seed metering apparatus where metered but non-discharged seeds are returned to a seed reservoir for subsequent metering and planting.