Md. Code Regs. 15.20.10.09 - General Requirements for the Application of Fertilizer
A. A professional
fertilizer applicator or trained employee may not:
(1) Apply fertilizer intended for use on turf
to an impervious surface; or
(2)
Apply fertilizer containing nitrogen or phosphorus to turf:
(a) At any time when the ground is
frozen;
(b) Within 15 feet of
waters of the State, however, if using a drop spreader, rotary spreader with a
deflector or a targeted spray, then the distance may be reduced to 10 feet;
or
(c) In an amount that is
inconsistent with the annual recommended rate established by the University of
Maryland (Maryland Nutrient Management Manual I-E1, COMAR
15.20.07.02).
B. A professional fertilizer
applicator or trained employee may not apply enhanced efficiency fertilizer to
turf:
(1) At a rate exceeding 2.5 pounds per
1,000 square feet of nitrogen per year;
(2) Before March 1 or after November 15 of
any calendar year;
(3) In excess of
80 percent of the total annual recommended rate of nitrogen established by the
University of Maryland Extension (Maryland Nutrient Management Manual I-E1,
COMAR 15.20.07.02); and
(4) Having a release rate in excess of 0.7
pounds per 1000 square feet of nitrogen per month.
C. Except as specified for enhanced
efficiency fertilizer, neither a professional fertilizer applicator, nor a
trained employee may apply fertilizer to turf:
(1) At an application rate of more than 0.7
pounds per 1000 square feet of water-soluble nitrogen; and
(2) At an application rate of more than 0.9
pounds per 1,000 square feet of total nitrogen.
D. Except as provided for in §C(2) of
this regulation:
(1) A professional
fertilizer applicator or trained employee shall apply nitrogen or phosphorus to
turf only from March 1 through November 15 of any calendar year; and
(2) From November 16 through December 1, a
professional fertilizer applicator or a trained employee may apply up to 0.5
pounds per 1,000 square feet of water-soluble nitrogen.
Notes
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