For Most Lawns
Lawn care with 16-0-0 liquid fertilizer:
Recommended annual fertilization: 1.5-4.0 lbs Nitrogen per 1000 sq-ft.
1-gallon of Lawn King Pro (16-0-0) = 1 pound of Nitrogen.
1-gal bottle covers 3200 sq-ft, an application every 4 weeks, total of 8/yr. = 4 lbs/1000 sq-ft, to give a lush, green lawn.
For Lawns that are Mulched or are in the Shade
Use half as much fertilizer as given in the example above, i.e. 1-gal bottle would cover 6400 sq-ft, application every 4 weeks, total of 8/yr.
If Lawn is Distressed
Consider using 50 % more than normal lawns until lawn recovers.
If Lawn is Heavily Used
Consider using 25% more than normal lawns regularly.