§ 14522 Fertilizer Composition Standards

Food and Agricultural Code·California

AI SummaryVerified

This law defines what counts as commercial fertilizer in the state, saying it’s any product with at least 5% nitrogen, phosphorus or potassium that’s sold to help plants grow.

Key Takeaways

•A product is a commercial fertilizer if it has 5% or more of nitrogen, available phosphoric acid, or soluble potash.
•The definition covers both regular farm fertilizers and specialty fertilizers.
•Even specialty fertilizers that have less than 5% of those nutrients are still considered commercial fertilizer if they are sold to promote plant growth.

Example

A farmer buys a bag of fertilizer labeled ‘Super Grow’ that has 6% nitrogen to use on his corn field.

Because the bag has more than 5% nitrogen, the law says it’s a commercial fertilizer and the seller must follow the state rules for labeling and sales.

AI-generated — May contain errors. Not legal advice. Always verify source.

Official Source

View on CA.gov

§ 14522 Fertilizer Composition Standards

“Commercial fertilizer” means any substance which contains 5 percent or more of nitrogen (N), available phosphoric acid (P2O5), or soluble potash (K2O), 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 (P2O5), or soluble potash (K2O), singly or collectively. (Repealed and added by Stats. 1990, Ch. 504, Sec. 2.)

Last verified: January 10, 2026

Key Terms

Commercial fertilizer Specialty fertilizers nitrogen (N)available phosphoric acid (P2O5)soluble potash (K2O)

References

Official text at leginfo.legislature.ca.gov
California Legislature. Food and Agricultural Code. Section 14522.

§ 14522 Fertilizer Composition Standards

Food and Agricultural Code·California

AI SummaryVerified

§ 14522 Fertilizer Composition Standards

This law defines what counts as commercial fertilizer in the state, saying it’s any product with at least 5% nitrogen, phosphorus or potassium that’s sold to help plants grow.

Key Takeaways

•A product is a commercial fertilizer if it has 5% or more of nitrogen, available phosphoric acid, or soluble potash.
•The definition covers both regular farm fertilizers and specialty fertilizers.
•Even specialty fertilizers that have less than 5% of those nutrients are still considered commercial fertilizer if they are sold to promote plant growth.

Example

A farmer buys a bag of fertilizer labeled ‘Super Grow’ that has 6% nitrogen to use on his corn field.

Because the bag has more than 5% nitrogen, the law says it’s a commercial fertilizer and the seller must follow the state rules for labeling and sales.

AI-generated — May contain errors. Not legal advice. Always verify source.

Official Source

View on CA.gov

§ 14522 Fertilizer Composition Standards

Last verified: January 10, 2026

Key Terms

Commercial fertilizer Specialty fertilizers nitrogen (N)available phosphoric acid (P2O5)soluble potash (K2O)

References

Official text at leginfo.legislature.ca.gov
California Legislature. Food and Agricultural Code. Section 14522.

Key Takeaways

Example

Key Terms

Related Statutes

References

Key Takeaways

Example

Key Terms

Related Statutes

References