21. Apply Fertilizers Accurately And Safely |
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Striving for more precise fertilizer application does not have
to be complicated. It requires attention to a few details, beginning
with equipment selection.
A drop spreader drops fertilizer granules straight down. Drop spreaders,
in general, apply fertilizer precisely and uniformly. However, some
drop spreaders cannot handle large granules. Any steering errors
with a drop spreader can mean missed strips or areas with excessive
overlap—problems that can result in light and dark streaks
in the lawn.
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Rotary
spreaders throw granules in a semicircular arc in front of the spreader
in a 6- to 8-foot-wide swath, covering a given area faster than drop
spreaders. On the downside, fertilizer often ends up in nontarget
areas such as sidewalks, driveways, and patios. To prevent the fertilizer
from washing into storm sewers, be sure to sweep fertilizer off of
these areas. |
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Whether
you have a rotary or a drop spreader, fill it on a paved surface rather
than on your lawn. If a spill occurs, it’s easy to clean up
from a drive. When filling the spreader, make sure the openings are
closed to prevent leaking on the ground. |
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Begin by applying fertilizer along a header strip—an area where
you can turn around and realign the spreader at each end of the lawn.
After making each pass, close the spreader as you move into the header
strip. Then turn the spreader around and open it again while moving
forward to make the next pass. |
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Rotary
spreaders increase the risk of an uneven application. To avoid creating
light- and dark-green stripes, cut the application rate in half and
run two overlapping applications in the same direction. The header
strips can be covered before running the two overlapping applications. |
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Read
the fertilizer label carefully and follow the recommended application
rate–the overall amount of product applied in pounds per 1,000
square feet. Your spreader should include instructions on how it can
be set for different application rates. |
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