K responses in dairy pastures for southwestern Victoria

Due to adverse seasonal conditions in the target area, the experiment was terminated. Future research on the management of grazed dairy pastures will be considered in the near future to address the significant decline in K use by the dairy industry. Research will need to be carefully targeted as recent research (Gourley et al. 2012, Animal Production Science, http://dx.doi.org/10.1071/AN11337) has shown whole farm K balances were all in net surplus, average +74 kg/ha (range 12.6 to 451.7 kg/ha). Situations where K may be limiting for grazed dairy pastures are on light soils, under high rainfall with paddocks that are cut for hay and do not have manure spread.