Regulation .09 General Requirements for the Application of Fertilizer.
Regulation .09 General Requirements for the Application of Fertilizer.LinkCopy Citation
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.