WAC 16-200-731   Commercial value of plant nutrients.  The commercial values used in assessing penalties for plant nutrient deficiencies are as follows:


(1) Fertilizer Materials Commercial Value ($/Unit)
  N P205 K20

Urea
4.20
Ammonium Nitrate

     (33.5% -34% N)		 4.75
Ammonium Sulfate 3.27
Ammonium Phosphate:

     16-20-0

     18-46-0

     11-52-0

     11-55-0

5.61

4.81

4.68

4.63

5.61

4.81

4.68

4.63
Triple Superphosphate

     (45%-46% P205)		 5.25
Muriate of Potash

     (60%-62% K20)		 2.17
Potassium Sulfate

     (50%-53% K20)		 6.64
Sulfate of Potash-Magnesia 8.20
Anhydrous Ammonia

     (82% N)		 3.00
Urea ammonium nitrate (32-0-0) 4.62
Aqua Ammonia (20-0-0) 3.00
Ammonium Thiosulfate (12-0-0) 5.00
Ammonium Polyphosphate (10-34-0) 6.00 6.10  

If the commercial value of any of the fertilizer materials listed above varies by more than 10% of the actual invoice value of the lot sampled, the registrant may request that the invoice be used in determining the commercial value of the fertilizer. The request must be accompanied by a copy of the invoice.


(2) Relative values for macronutrients: Commercial Value ($/Unit)
  N P205 K20
Dry blend nonspecialty fertilizer (not listed in (1) above) 4.48 5.16 2.74
Liquid blend nonspecialty fertilizer (not listed in (1) above) 3.93 5.96 2.74
Dry blend specialty fertilizer 18.96 18.96 18.96
Liquid blend specialty fertilizer 18.96 18.96 18.96

     (3) Values used for determining and assessing penalties for secondary and minor plant nutrients shall be determined from the sales invoice.



[Statutory Authority: Chapter 15.54 RCW. 87-19-097 (Order 1952), § 16-200-731, filed 9/17/87.]