Minn. Stat. § 17.941: PRODUCER'S RIGHT TO CANCEL.

A producer may cancel an agricultural contract by mailing a written cancellation notice to the contractor within three business days after the producer receives a copy of the signed contract, or before a later cancellation deadline if a later deadline is specified in the contract. The producer's right to cancel, the method by which the producer may cancel, and the deadline for canceling the contract shall be clearly disclosed in every agricultural contract.