A good fertilization schedule is without a
doubt critical to the success of any lawn. There are many
recommendations on specific lawn fertilization schedules.
Whenever available I have added these schedules to the pages
associated with the individual species in question. As a rule,
general purpose commercial lawn fertilizers are acceptable for
most lawn grasses. One of the rare exceptions to this rule is
centipede grass, which is not tolerant of phosphorous (the
middle element in fertilizer labels). This is the reason why a
fertilizer such as 15-0-15 is recommended for
Fertilizers have labels which show what
percentage of each element is available in that particular
blend. This is expressed as N-P-K (N for Nitrogen, P for
Phosphorous and K for Potash). So a Fertilizer with a
label of 10-6-6 consists of 10% Nitrogen, 6% Phosphorous
and 6% Potash. When buying fertilizer for your lawn you should
take into consideration local requirements, ideally (although
rarely done) I soil test through your local agricultural
extension would be ideal.
There is a key factor in fertilizer
recommendations which you will find through out this website.
It is an expression of how much nitrogen is required on an
annual basis per 1000 Sq Ft. It sounds more complicated then
it really is. The easiest way to explain this is by example.
Suppose you are looking at a fertilizer with a value of
10-10-10. The first element is Nitrogen. If you divide 100 by
that number you will get the number of pounds of that
fertilizer that you need to apply per 1000 Sq Feet per year to
get a value of 1 pound of nitrogen. So if your lawn type
requires 2 pounds of nitrogen per year, you would need to
apply a total of 20 pounds of fertilizer (using the 10-10-10
example) for the entire year.