Soil particles, broken seeds, awns and short stems are items included in the percent inert matter. The seed tag also bears information regarding the germination capability of the seed, which is tested under strict laboratory conditions for each species. Any fungicide treatments to the seed would be included here as well. This is the highest quality seed available. In order for turfgrass seed to achieve blue tag status, the following conditions must be met.
Variety is worthy of certification, or describable by the originator.
Minimum standards for purity are met. These conditions when met, insure the buyer that the best quality seed is available to them. Two components of information on the seed tag allow you to do this. The remaining 1.5 out of ten seeds, will not germinate. Knowing this, the actual amount of seed required must be adjusted for the PLS content.