How often do soil tests need to be conducted?
For sugarcane: soil needs to be sampled and tested within the 12 months prior to the commencement of a new plant cane crop or every five years (whichever is sooner). For cattle grazing: it is recommended that soil testing for nitrogen and phosphorus should be done when products containing nitrogen and phosphorus are to be applied. Examples include: when establishing new pastures, or every five to eight years if fertiliser application takes place annually.
