Jack's Professional 21-8-18 MagMum Water Soluble Fertilizer, 25 lbs.

SKU: JRP71440
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Jacks Nutrients Brand ProductMultiple Units? Click for Volume Pricing.

Availability: Out of stock

Lead time: This product ships in 7-10 Business Days

Shipment Restrictions
This item cannot be shipped to the following states: AR, AZ, CT


Price:
Sale price$64.45

This formula is specifically formulated for the heavy feeding mum crop. It is a high nitrate, high potential acidity formulation that mums require. Extra magnesium is added for improved greening. Contains Peat-Lite trace element level. It also provides a 5% increased efficiency compared to 20-10-20 formula which stretches your fertilizer dollar without compromising performance.

For Use On: Garden mums


Jacks Professional 21-8-18 MagMum Water Soluble Fertilizer Guaranteed Analysis

  • Total Nitrogen (N)......21%
    • 8.6% Ammoniacal Nitrogen
    • 12.4% Nitrate Nitrogen
  • Available Phosphate (P205).......8%
  • Soluble Potash (K2O).......18%
  • Magnesium (Mg).......1.0%
    • 1.0% Water Solulble Magnesium (Mg)
  • Boron (B).......0.021%
  • Copper (Cu)........0.011%
    • 0.011% Chelated Copper (Cu)
  • Iron (Fe)........0.105%
    • 0.105% Chelated Iron (Fe)
  • Manganese (Mn)........0.053%
    • 0.053% Chelated Manganese (Mn)
  • Molybdenum (Mo).......0.011%
  • Zinc (Zn).......0.053%
    • 0.053% Chelated Zinc

Derived From: Ammonium Nitrate, Potassium Nitrate, Monoammonium Phosphate, Magnesium Nitrate, Boric Acid, Iron EDTA, Manganese EDTA, Zinc EDTA, Copper EDTA, Ammonium Molybdate

Potential Acidity: 446 lb. Calcium carbonate equivalent per ton.

ATTENTION: The application of fertilizer material containing Molybdenum (Mo) may result in forage crops containing levels of Molybdenum (Mo) which are toxic to ruminant animals.


Elemental Concentraion

100 ppm N Solution Contains the Following Elemental ppm
Nitrate - N (NO3) 59.0
Ammonium - N (NH4) 40.9
Urea - N (Urea) 0.0
Phosphorus (P) 16.6
Potassium (K) 71.1
Calcium (Ca) 0.0
Magnesium (Mg) 4.7
Boron (B) 0.1
Copper (Cu) 0.05
Iron (Fe) 0.48
Manganese (Mn) 0.25
Molybdenum (Mo) 0.05
Zinc (Zn) 0.25

Mixing Instructions
Chart displays the amount of dry fertilizer (oz.) to add to each gallon of water to make a concentrated solution. Please check your injector setting before use.

Mixing Table

Desired N Feed Rate 1:15 1:100 1:200 E.C. Value
50 ppm 0.48 3.22 6.43 0.32
100 ppm 0.96 6.43 12.86 0.64
200 ppm 1.93 12.86 25.72 1.28

Limit of Solubility = 4 lbs per gallon

Important Notes:
E.C. value is the best method to determine fertilizer strength. Fertilizer appearance may vary in color due to variation in raw material size and tracer dye distribution upon the particles in the bag. In solution, color will remain consistent.

For best results, use warm water to dissolve product. Jack's fertilizers are made with 100% soluble raw materials that will form a true solution. Some raw materials are slower to dissolve than others. Keep stock tank covered to reduce light and debris inputs.

Brand Jacks Nutrients
SKU JRP71440
Weight (lb.) 25.0000
Height (in.)
Width (in.)
Length (in.)
Hazardous Material false
UPC 671341714408
Shipping Restrictions AR, AZ, CT
Lead Time This product ships in 7-10 Business Days
N-P-K 21-8-18
Nutrient Application Hydroponic and Soil Nutrient
Nutrient Type Inorganic Based
OMRI Certified No
Nutrient Material Type ["Granular"]

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