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 (29, 100) operatively connected to the seed deposit assembly; and a primary actuator (24, 98) operatively connected to the multi-bar linkage assembly (29, 100), the primary actuator (24,98) being controllably actuated between a retracted position and an extended position; wherein, the primary actuator (24, 98) 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 (24, 98) and the gage wheel, wherein the multi-bar linkage assembly (29, 100) comprises a main arm (42, 108) and a raise/lower link (36, 106), the raise/lower link (36, 106) operatively coupled to the main arm (42, 108) and the primary actuator (24, 100), and further comprising a depth adjust link (66, 111) coupled to the main arm (42, 108) and operatively connected to the raise/lower link (36, 106), wherein actuation of the primary actuator (24, 100) pivots the raise/lower link (36, 106) about a pivot (44, 110) shared between the raise/lower link (36, 106) and the main arm (42, 108) to move the depth adjust link (66, 111) to adjust the depth of the furrow, wherein the primary actuator (24, 100) moves the raise/lower link (36, 106) with respect to the main arm (42, 108) 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 (29, 100) operatively connected to the seed deposit assembly; and a primary actuator (24, 98) operatively connected to the multi-bar linkage assembly (29, 100), the primary actuator (24,98) being controllably actuated between a retracted position and an extended position; wherein, the primary actuator (24, 98) 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 (24, 98) and the gage wheel, wherein the multi-bar linkage assembly (29, 100) comprises a main arm (42, 108) and a raise/lower link (36, 106), the raise/lower link (36, 106) operatively coupled to the main arm (42, 108) and the primary actuator (24, 100), and further comprising a depth adjust link (66, 111) coupled to the main arm (42, 108) and operatively connected to the raise/lower link (36, 106), wherein actuation of the primary actuator (24, 100) pivots the raise/lower link (36, 106) about a pivot (44, 110) shared between the raise/lower link (36, 106) and the main arm (42, 108) to move the depth adjust link (66, 111) to adjust the depth of the furrow, wherein the primary actuator (24, 100) moves the raise/lower link (36, 106) with respect to the main arm (42, 108) 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.