The use of break crops is proving extremely important for controlling grassy weeds, reducing root disease and maintaining cereal yields, for intensive cropping in low rainfall areas. However, finding suitable and consistently profitable options that achieve this in areas of less than 200mm growing season rainfall is not easy.
This trial was conducted on the Worsfolds’ farm at Wunkar (near Loxton) which receives average annual rainfall of approximately 260mm and ave GSR of 165mm. The paddock was surveyed using EM38 to allow for a more direct comparison of plot yield results against soil types (Fig 1). This method is used to help take account for paddock variation when using farmer scale trials. There was, however, no replication of plots at this site.