I have been trying to understand the Japanese study but can not seem to find a definition for meter to the -2. I can find that square meter is defined as meter to to the 2 power but nothing about to the -2. Most recommendations for lawn fertilization are about 1 pound of nitrogen for every 1000 sq. feet per application, 4 apps per year. Since Coffee grounds are about 2% N that would only be about 50 pounds per app. or 200 pounds per 1000 sq. feet per year.
