1.  Primary plant nutrients; overall index.  An assessment of 2 times the commercial value of the deficiency or deficiencies as determined under subsection 3 must be made if:  

2.  Other deficiencies.  When a fertilizer is labeled to guarantee or a bulk fertilizer is accompanied by a statement guaranteeing that the fertilizer contains recognized plant nutrients other than nitrogen, available phosphate or soluble potash, the commissioner may evaluate the fertilizer and prescribe an assessment for deficiencies in any of the claimed nutrients based on commercial values determined under subsection 3.  

3.  Determination of commercial value.  For the purpose of determining the commercial value to be applied in determining assessment under this section, the commissioner shall determine and publish annually the values per unit of total nitrogen, available phosphate and soluble potash or other nutrients that the registrant is required to or may guarantee in fertilizers in this State. The values so determined and published must be used in determining and assessing penalty payments.  

4.  Payment to consumer; commissioner.  Assessments made under subsections 1 and 2 must be paid by the registrant to the consumer of the lot of fertilizer represented by the sample analyzed. The commissioner shall send notification of the amount of the assessment with the results of the analysis sent in accordance with section 745. Assessments must be made within 30 days of the date of the notification. If the consumer cannot be located, the registrant shall submit the assessment to the commissioner for deposit in the commercial fertilizer account under subsection 5.  

5.  Commercial fertilizer account.  The commissioner shall deposit all assessments submitted to the commissioner in accordance with subsection 4 in a dedicated account established within the department. The account is a nonlapsing interest-bearing account. Funds from the account may only be used to pay costs of sampling and analyzing fertilizer.