Grains and field crops
The results shown are the yield of grain harvested from crops grown after various lengths of pasture ley. Experiments - W56H, 66M29, 67BA6, 68E5, 68SG5, 69GE20,
Number of Pages
Rowland, I. (1973), 1973 Long term rotation trials. Department of Agriculture and Food, Western Australia, Perth. Report.