Mich. Admin. Code R. 285.634.4 - Slowly available plant nutrients
Rule 4.
(1) A
fertilizer label shall not bear a statement that connotes or implies the
presence of a slowly available plant nutrient, unless the nutrient is
identified.
(2) When a fertilizer
label implies or connotes that the nitrogen is slowly available through the use
of words such as "organic," "organic nitrogen," "ureaform," "long lasting," or
similar terms, the guaranteed analysis shall indicate the percentage of water
insoluble nitrogen. This requirement shall not apply to manipulated animal and
composted vegetable materials distributed as such and not mixed with other
materials. The label shall not bear a reference to slowly available nitrogen
when water insoluble nitrogen is less than 15% of the total nitrogen.
(3) The term "coated--slow release" may be
accepted as descriptive of products and shall be allowed on labeling when the
manufacturer can provide acceptable data substantiating the claim.
Notes
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