Pasture Profit Index (PPI) is now widely accepted as the most accurate independent reflection of the real economic value of individual Perennial Ryegrass varieties. Our grass seed contains 7 of the top 10 varieties on the PPI list.
The PPI system should be given the same level of consideration as the EBI system for livestock.
It gives the value per variety (Euro /hectare /year) in comparison to all the other varieties tested.
The differences in value of the varieties are substantial on a annual basis, so they are absolutely massive over the 10 to 15 year lifetime of the sward.