Managing
MISSISSIPPI
Farm Ponds &
Small Lakes
http://msucares.com/pubs/publications/p1428.pdfWhen To Apply Fertilizer
Begin fertilization in late winter
or early spring, but definitely by
the time water temperatures have
stabilized at 60 °F or higher. Usually
this temperature occurs
around March 15 in south Mississippi
and April 1 in central and
north Mississippi. Early fertilization
will shade the pond bottom
and help control filamentous
algae, a common problem in Mississippi
ponds in spring.
Make the first three applications
of fertilizer two weeks
apart; then apply whenever you
can see your hand clearly with
your arm under water at elbow
depth. By fertilizing only when
water is clear at18 to 24 inches,
you will fertilize the pond at approximate
3- to 5-week intervals
from spring through September.
--------------------------------------------------------------------------------------------------------------------------------------
I usually wait later than that time and start slowly when it hits 60F.