Rule 901:5-1-06. What constitutes mislabeled fertilizer

119.03 (A) Fertilizer material is mislabeled if the director of agriculture determines after analysis of said fertilizer material that the percentage of total nitrogen, available phosphoric acid (P 2 O 5 ), or soluble potash (K 2 0) in the fertilizer is below the allowances permitted in the table found in paragraph (B) of this rule: (B) Per cent allowances of fertilizer materials. Guarantee per cent Nitrogen (N) Available phosphate (P 2 O 5 ) Soluble potash (K 2 O) 04 or less 0.49 0.37 0.41 05 0.51 0.67 0.43 06 0.52 0.67 0.47 07 0.54 0.68 0.53 08 0.55 0.68 0.60 09 0.57 0.68 0.65 10 0.58 0.68 0.70 12 0.61 0.69 0.79 14 0.63 0.70 0.87 16 0.67 0.70 0.94 18 0.70 0.71 1.01 20 0.73 0.72 1.08 22 0.75 0.72 1.15 24 0.78 0.73 1.21 26 0.81 0.73 1.27 28 0.83 0.74 1.33 30 0.86 0.75 1.39 32 0.88 0.76 1.44 34 0.79 1.46 36 0.83 1.49 38 0.86 1.51 40 0.90 1.54 42 0.93 1.56 44 0.96 1.58 46 1.00 1.61 48 1.07 1.66 50 1.10 1.68 52 1.10 1.68 54 1.70 56 1.73 58 1.75 60 1.78 62 1.80 For N guarantees above 32 per cent the allowance shall be 0.88. For P 2 O 5 guarantees above 52 per cent the allowance shall be 1.10. For K 2 O guarantees above 62 per cent the allowance shall be 1.80. For guarantees not listed, calculate the appropriate allowance by interpolation. (C) Any mixture of fertilizers is mislabeled if the director determines after analysis of the mixture that: (1) The percentage of total nitrogen, available phosphoric acid (P 2 O 5 ), or soluble potash (K 2 O) in the mixture is more than ten per cent below the percentage guaranteed or more than two percentage points below the percentage guaranteed, whichever is the smaller; or (2) The total of the percentages determined for the three primary plant nutrients is less than ninety-seven per cent of the sum of the guarantees for these three nutrients. Last updated February 10, 2025 at 12:59 PM Supplemental Information Authorized By: 905.44 Amplifies: 905.35 , 905.43 , 905.44 1/14/2030 8/4/2013 Disclaimer Contact About