TITLE XL
AGRICULTURE, HORTICULTURE AND ANIMAL HUSBANDRY

CHAPTER 431
SOIL CONDITIONERS

Fertilizers

Section 431:4-a

    431:4-a Nitrogen Content of Fertilizer. –
I. No turf fertilizer sold at retail shall exceed 0.7 pounds per 1,000 square feet of soluble nitrogen per application when applied according to the instructions on the label.
II. No turf fertilizer sold at retail shall exceed 0.9 pounds per 1,000 square feet of total nitrogen per application when applied according to the instructions on the label.
III. No turf fertilizer shall exceed an annual application of 3.25 pounds per 1,000 square feet of total nitrogen when applied according to the instructions on the label.
IV. No enhanced efficiency fertilizer shall exceed a single application rate of 2.5 lbs. per 1,000 square feet of total nitrogen and an annual application rate of 3.25 pounds per 1,000 square feet of total nitrogen nor release at greater than 0.7 pounds per 1,000 square feet per month when applied according to the instructions on the label.

Source. 2013, 42:5, eff. Jan. 1, 2014.