§ 14522
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/ca/food-and-agricultural-code/14522A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
“Commercial fertilizer” means any substance which contains 5 percent or more of nitrogen (N), available phosphoric acid (P 2 O 5 ), or soluble potash (K 2 O), singly or collectively, which is distributed in this state for promoting or stimulating plant growth. “Commercial fertilizer” includes both agricultural and specialty fertilizers. “Specialty fertilizers” may contain less than 5 percent nitrogen (N), available phosphoric acid (P 2 O 5 ), or soluble potash (K 2 O), singly or collectively.