A row unit for depositing seeds in a furrow formed in soil, the row unit comprising: a seed deposit assembly including a gage wheel and a disk , the gage wheel configured to contact a top surface of the soil and the disk configured to cut the furrow in the soil for receiving the deposited seeds; a multi-bar linkage assembly operatively connected to the seed deposit assembly ; and a primary actuator operatively connected to the multi-bar linkage assembly , the primary actuator being controllably actuated between a retracted position and an extended position; wherein, the primary actuator raises and lowers the seed deposit assembly relative to the soil and moves the disk into the soil to cut the furrow at a depth determined by the primary actuator and the gage wheel , wherein the multi-bar linkage assembly comprises a main arm and a raise/lower link , the raise/lower link operatively coupled to the main arm and the primary actuator , and further comprising a depth adjust link coupled to the main arm and operatively connected to the raise/lower link , wherein actuation of the primary actuator pivots the raise/lower link about a pivot shared between the raise/lower link and the main arm to move the depth adjust link to adjust the depth of the furrow , wherein the primary actuator moves the raise/lower link with respect to the main arm to adjust the depth of the furrow , characterized in further comprising a limit arm operatively connected to one or both of the raise/lower link and the main arm , wherein the raise/lower link includes a slotted portion and the limit arm engages the slotted portion to define a limit to movement between the raise/lower link and the main arm . a seed deposit assembly including a gage wheel and a disk , the gage wheel configured to contact a top surface of the soil and the disk configured to cut the furrow in the soil for receiving the deposited seeds; a multi-bar linkage assembly operatively connected to the seed deposit assembly ; and a primary actuator operatively connected to the multi-bar linkage assembly , the primary actuator being controllably actuated between a retracted position and an extended position; wherein, the primary actuator raises and lowers the seed deposit assembly relative to the soil and moves the disk into the soil to cut the furrow at a depth determined by the primary actuator and the gage wheel , wherein the multi-bar linkage assembly comprises a main arm and a raise/lower link , the raise/lower link operatively coupled to the main arm and the primary actuator , and further comprising a depth adjust link coupled to the main arm and operatively connected to the raise/lower link , wherein actuation of the primary actuator pivots the raise/lower link about a pivot shared between the raise/lower link and the main arm to move the depth adjust link to adjust the depth of the furrow , wherein the primary actuator moves the raise/lower link with respect to the main arm to adjust the depth of the furrow , characterized in further comprising a limit arm operatively connected to one or both of the raise/lower link and the main arm , wherein the raise/lower link includes a slotted portion and the limit arm engages the slotted portion to define a limit to movement between the raise/lower link and the main arm . <EOS>