% Guarantee - N - P2O5 - K2O
4% or Less - 0.49 - 0.67 - 0.41;
5% - 0.51 - 0.67 - 0.43;
6% - 0.52 - 0.67 - 0.47;
7% - 0.54 - 0.68 - 0.53;
8% - 0.55 - 0.68 - 0.60;
9% - 0.57 - 0.68 - 0.65;
10% - 0.58 - 0.69 - 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 - 1.46;
48% - * - 1.03 - 1.63;
50% - * - 1.07 - 1.66;
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%, the investigational allowance shall be 0.88.
# For P2O5 guarantees above 52%, the investigational allowance shall be 1.10.
For K2O guarantees above 62%, the investigational allowance shall be 1.80.
For guarantees not listed, calculate the appropriate value by interpolation.
Element -- Investigational Allowance
Ca - 0.2 Unit + 5% of Guarantee;
Mg - 0.2 Unit + 5% of Guarantee;
S - 0.2 Unit + 5% of Guarantee;
B - 0.003 Unit + 15% of Guarantee;
Co - 0.0001 Unit + 30% of Guarantee;
Cl - 0.005 Unit + 10% of Guarantee;
Cu - 0.005 Unit + 10% of Guarantee;
Fe - 0.005 Unit + 10% of Guarantee;
Mn - 0.005 Unit + 10% of Guarantee;
Mo - 0.0001 Unit + 30% of Guarantee;
Na - 0.005 Unit + 10% of Guarantee;
Zn - 0.005 Unit + 10% of Guarantee.
"UNIT" is twenty (20) pounds of plant food or one percent (1%) of a ton
The maximum allowance when calculated in accordance to the above shall be 1 unit (1%).
Arsenic - 10.0 ppm;
Cadmium - 05.0 ppm;
Lead - 05.0 ppm;
Mercury - 0.20 ppm;
Nickel - 05.0 ppm.
Or. Admin. Code § 603-059-0070
Stat. Auth: ORS 561.190 & 633 as amended by Ch. 514 OL 2015
Stats. Implemented: ORS 633 as amended by Ch. 514 OL 2015