RPR – BioGro
RPR, or Reactive Phosphate Rock, is a slow release phosphate fertiliser. Being slow release, it is less prone to run-off and leaching. It's also relatively high in calcium which provides a minor liming effect. BioGro certified product.
Chemical Analysis:
Phosphorus (P): 11
Sulphur (S): 1.3
Calcium (Ca): 35
Application Rate:
Depends on soil test results
Availability:
25kg, 500kg, 1000kg, Bulk