turfgrass speedo

The turfgrass genki level, part 5: what's real, what's not, & the simplicity of this

In this series of posts, I’ve showed how one can start with temperatures and go all the way to a standardized comparison of growth in response to nitrogen supply. In this one, I want to emphasize which of these are real, which aren’t real but are useful, and to make an argument that this is a lot easier than it might seem.

The turfgrass genki level, part 4: a normalized comparison of N fertilizer to growth rate

The amount of nitrogen (N) supplied over a certain time duration, compared to a standard amount, is what I call the genki level (GL). And the amount of clippings harvested over a certain time duration, compared to a standard amount, is what Jason Haines calls the turfgrass speedo.

The turfgrass genki level, part 3: turf growth response measured by clippings

In part 2, I showed how the ratio of N applied to standard N gives an indication of how much one is pushing the grass to grow. I call that the genki level (GL).