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