• oxide
Nitrogen Total (N) 21%
Ammoniacal nitrogen (N-NH4) 10.4%
Urea nitrogen (Ur-N) 10.6%
Phosphorus Pentoxide (P205) 7%
Potassium Oxide (K20) 7%
Iron (Fe) 0.15%
Chelated by EDTA 0.15%
Manganese (Mn) 0.05%
Chelated by EDTA 0.05%
Boron (B) 0.03%
Water soluble 0.026%
Chelated by EDTA 0.026%
Molybdenum (Mo) 0.010%
Water soluble 0.050%
Chelated by EDTA 0.050%

Product Code

G99330

Peters Excel® pHLow® 21-7-7 Acid Special

21-7-7 Acid Special

21-7-7

  • Advantages
  • DIrections for use
  • Suggested Application Rates
Advantages

Produce healthy, acid-loving crops with this formula’s high potential acidity that offsets high water alkalinity or lowers pH levels in growing media.

  • C (Customizing) component can be used with a variety of B (Base) formulations
  • Excellent choice for Water Types 3 and 4
  • Contains a full range of essential micronutrients plus extra iron to promote greening
DIrections for use
  • Verify your product analysis and rate for your plants in your production system. For further guidance contact your local ICL Specialty Fertilizer Territory Manager or call ICL Specialty Fertilizer Customer Service at 800-492-8255.
  • Rate tables are printed on bag labels and can be found on product information sheets as well as on www.icl-sf.com.
  • Irrigation frequency and volume should be adjusted during the crop production cycle according to crop type, environmental conditions and desired soluble salt levels.
  • Constant feeding with your irrigation is our normal recommendation for feeding with water soluble fertilizers.
  • A product trial is recommended before adopting a new fertilizer program or making full-scale changes to standard cultural practices. Test several rates on representative plant types.
  • Product storage: Store in a clean, cool, dry place.  Re-seal opened bags by folding top down and securing.
Suggested Application Rates

 

Weight (In Ounces) Of Product Needed To Mix One U.S. Gallon Of Concentrate

Target Fertilizer
Concentration (ppm N)
After Dilution



Injector Ratios

EC mmhos/cm of
Target Feed Rate After Dilution



1:15 1:100 1:200
50 0.5 3.2 6.4 0.26
100 1.0 6.4 12.9 0.52
200 1.9 12.9 25.7 1.04
300 2.9 19.3 38.6 1.56

 

Gallons Of Water Required To Dissolve One 25 Lb Bag Of Fertilizer

Target Fertilizer Concentration
(ppm N) After Dilution



Injector Ratios
1:100 1:200
50 124.4 62.2
100 62.2 31.1
200 31.1 15.6
300 20.7 10.4

For a complete list of target concentrations (ppm N), please refer to the Product Information Sheet.


Mixing for watering cans, spray tanks (no injectors)

Amount of Fertilizer       +       Amount of water (gallons)  =       Approximate ppm N
1 tsp. 1 245
1 tbsp. 2 368
1 cup 25 471

 

Click for Product Sheet

Produce healthy acid-loving crops with this formula’s high potential acidity that offsets high water alkalinity or lowers pH levels in growing media.