Statutes, codes, and regulations
Kentucky Administrative Regulations
Title 12 - AGRICULTURAL EXPERIMENT STATION
Chapter 4 - Fertilizer
Section 12 KAR 4:130 - Investigational allowances

12 Ky. Admin. Regs. 4:130

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Current through Register Vol. 51, No. 5, November 1, 2024
Section 12 KAR 4:130 - Investigational allowances

RELATES TO: KRS 250.366(19), 250.391(3), 250.396(1), (2), 250.401

NECESSITY, FUNCTION, AND CONFORMITY: KRS 250.421 requires the director to promulgate administrative regulations necessary to implement KRS 250.361 through 250.461. This administrative regulation establishes scientifically sound and fair investigational allowances as a basis for declaring a fertilizer sample deficient in its guaranteed analyses and to detail the calculation of the index value of a fertilizer.

Section 1. A fertilizer shall be deemed deficient if the analysis of an official sample for any primary nutrient is below the guarantee by an amount exceeding the values in the table established in this section.

Guaranteed percent

Total Nitrogen (N) percent*

Available Phosphate (P2O5) percent*

Soluble Potash (K2O) percent*

05 or less

0.37

0.65

0.39

06

0.47

0.71

0.47

07

0.59

0.77

0.56

08

0.72

0.82

0.63

09

0.81

0.86

0.70

10

0.89

0.89

0.76

12

1.03

0.95

0.87

14

1.18

1.02

0.96

16

1.29

1.12

1.05

18

1.43

1.19

1.12

20

1.57

1.32

1.18

22

1.62

1.39

1.22

24

1.65

1.46

1.26

26

1.66

1.53

1.29

28

1.58

1.59

1.33

30

1.28

1.67

1.36

32 or

1.28

1.67

1.36

more

For guarantees not listed, calculate the appropriate value by interpolation.

*For these investigational allowances to be applicable, the procedures recommended by AOAC International for obtaining samples, preparation and analysis shall be used. These are described in the 15th Edition (1990) of the Official Methods of Analysis of the AOAC International. In evaluating replicate data, Table 19, page 935, Journal of the Association of Official Analytical Chemists, Volume 49, No. 5, October, 1966, shall be followed.

Section 2. A fertilizer shall be deemed deficient in the overall index value if the overall index value is less than ninety-seven (97) percent.
(1) The overall index value shall be calculated by comparing the value guaranteed with the value found. Unit values of the nutrients used shall be those referred to in KRS 250.401.
(2) Overall index value. Example of calculation for a 10-10-10 grade found to contain ten and one-tenth (10.1) percent Total Nitrogen (N), ten and two-tenths (10.2) percent Available Phosphate (P2O5) and ten and one-tenth (10.1) percent Soluble Potash (K2O). Nutrient unit values shall be assumed to be three (3) dollars per unit N, two (2) dollars per unit (P2O5), and one (1) dollar per unit K2O

10.0 units N

x3=

10.0

10.0 units P2O5

x2=

20.0

10.0 units K2O

X1=

10.0

Commercial Value Guaranteed =

60.0

10.0 units of N

x3=

30.3

10.2 units of P2O5

x2=

20.4

10.1 units K2O

xl=

10.1

Commercial Value Found =

60.8

Overall Index Value =100(60.8/60.00)= 101.3%

Section 3. Secondary and minor elements shall be deemed deficient if the analysis of an official sample for any of these elements is below the guarantee by an amount exceeding the values in the table established in this section.

Element

Investigational Allowance

Calcium)

0.2 unit + 5% of guarantee

Magnesium

0.2 unit + 5% of guarantee

Sulfur)

0.2 unit + 5% of guarantee

Boron)

0.003 unit + 15% of guarantee

Molybdenum)

0.0001 unit + 30% of guarantee

Chlorine)

0.005 unit + 10% of guarantee

Copper)

0.005 unit + 10% of guarantee

Iron)

0.005 unit + 10% of guarantee

Manganese)

0.005 unit + 10% of guarantee

Sodium)

0.005 unit + 10% of guarantee

Zinc)

0.005 unit + 10% of guarantee

The maximum allowance calculated in accordance with this table shall be one (1) unit (1 percent).

Section 4. Incorporation by Reference.
(1) The following material is incorporated by reference:
(a) "15th Edition (1990) of the Official Methods of Analysis of the AOAC International", 1990; and
(b) "Table 19, page 935, Journal of the Association of Official Analytical Chemists, Volume 49, No. 5", October, 1966
(2) This material may be inspected, copied, or obtained, subject to applicable copyright law, at the Division of Regulatory Services, University of Kentucky, 103 Regulatory Services Building, Lexington, Kentucky 40546-0275, Monday through Friday, 8 a.m. to 4:30 p.m.

12 KAR 4:130

11 Ky.R. 512; eff. 11-13-1984; Am. 21 Ky.R. 457; 1027; eff. 9-28-1994; 114, 935; eff. 11-18-2020.

STATUTORY AUTHORITY: KRS 250.421