Effects of growth control matter, EL—500, that affect the growth of cool season turfgrasses

Abstract

We made an experiment in order to decide the effects of scattering quantity and interval. The growth control matter (EL 500) were studied in cool season turfgrasses, and following results were obtained.
1. Control effects
The control effects were notable, especially in the solid matter.
2. Control interval
Both solid matter and liquid matter, control effects had continued about two months. But two months later, it was gone.
3. Damage from agricultural chemicals Liquid matter had no damage from agricultural chemicals.
Solid matter had damage from agricultural chemicals, but it was a little.