On many occasions, we saw some parts of our farm, produce this 3 bale yield, but not over a whole field. One corner ,or one side, or a top or bottom end, but not all over. There is not good value in growing 3 bales in one corner and 1.5 in the other. There seemed to be no distinct pattern of where these best yields would occur. We tried many different practices including chisel ploughing, ripping, and jumbo-busting, but the variation still remained. By 1981 we had a five year average yield of 1.8 bales/acre.