Sulphate of Potash for WA Farmers (SOPWA)

An Australian first  controlled environmental study and broadacre field trials, commenced in 2019, analysing the benefits of WA produced SOP (SOP) fertiliser.

The Australian Potash Limited, SOP for WA Farmers (SOPWA) project compared commonly used MOP (MOP) with SOP and investigated the full effects of both potassium sources on crop yield, quality, safety and value.

Another first is the research collaboration between the Western Australian No-Tillage Farmers Association (WANTFA), The University of Western Australia's Institute of Agriculture and Australian Potash.

Five trial sites, using farmers equipment, were established at Bolgart, Tammin, Southern Cross, Kojonup and Grass Patch. The Trials varied in their design and size to suit the grower's interests and capacity with their seeding equipment.