Cut high to help turfgrass establish seems to be the rule.
- The higher N rate encouraged faster rooting.
- The higher cutting height encouraged better rooting.
For Bahia grass, a high cut is 65 -75mm, and low cut 35mm, with commercial operators using 45mm. For Bahia, one might need to also temper cut height and frequency with a need to remove seed heads, which direct fertilisers into reproduction, which is not needed during estabishment.
This also fits well with convention that says that a higher cut height during stress periods is beneficial - for this you could interpret stress as high temperatures and low water availability eg September - mid December in north Australia.
[partially sourced from SESL Newsletter September 2012]
Wherley BG et al. 2011. Nitrogen and cutting height influence root development during warm-season turfgrass sod establishment. Agronomy Journal 103: 1629–1634.