positioned on the accumulator belt 138 for a given row as can be seen in fig2 the orientation of the sod roll can be adjusted by the operator in this regard the adjustment occurs by regulating the time of rolling of the strips of sod on the conveyor to effectuate the desired roll orientation the robotic arm is then actuated 140 to place the head over the filled accumulator 94 the grippers are actuated in process block 142 to grasp the rolls of sod the robotic arm moves the row of sod rolls over the stack in process block 144 and releases the sod in process block 146 in this regard the system can optionally use feedback from the actuators to determine the proper time to release the sod onto the stack the system then returns to process block 123 to start the loading of the next row of sod 1 sod is cut and rolled using the current established method 2 the roll is ejected from the rear of the main conveyor here it drops in front of a pusher which pushes it to the left onto a buffer conveyor alternatively the roll is dropped from the main conveyor directly onto the accumulator belt 3 the buffer or accumulator conveyor indexes until it contains up to 5 rolls of sod 4 a robotic arm picks up up to 5 rolls of sod from the buffer conveyor and places them onto the stack 5 the robotic arm as instructed by the controller continues placing sod on the stack in a different position and orientation every time until the stack is.