NatraMin Cal-K

NatraMin Cal-K

Extra Calcium, Sulphur and Potassium


NatraMin Cal-K is developed for soils high in magnesium and/or sodium with particular benefits for legume pastures and crops.


In addition to providing broad spectrum minerals, all blends of NatraMin are formulated to stimulate microbe and worm activity in your soil,  helping to release locked up nutrients for your crop.

sheep-icon sheep-icon sheep-icon sheep-icon sheep-icon sheep-iconsheep-icon

  • 20kg Bag
  • 1t Bulk Bag

Product Enquiry

  • Soils high in magnesium and/or sodium
  • NatraMin® can be applied at any time of the year
  • Can be applied at plant stage
  • For best results apply 4-6 weeks prior to planting
  • No withholding period for livestock
Typical Analysis (DMB) NatraMin Original NatraMin Cal-S NatraMin S NatraMin Cal-K NatraMin K NatraMin Hi-Phos NatraMin K-Phos
Calcium (Ca) 5.0% 10.7% 4.7% 10.2% 4.7% 11.0% 10.1%
Phosphorus (P) 0.08% 0.06% 0.07% 0.06% 0.1% 2.0% 1.9%
Sulphur (S) 0.04% 5.8% 6.3% 6.4% 1.0% 2.5% 3.3%
Potassium (K) 3.0% 2.0% 2.8% 3.9% 4.9% 2.4% 4.2%
Magnesium (Mg) 2.5% 1.7% 2.3% 1.6% 2.2% 1.7% 1.4%
Silicon (Si) 25.0% 17.3% 23.3% 16.5% 23.5% 22.0% 20.5%
Iron (Fe) 5.5% 3.7% 5.1% 3.5% 5.1% 4.7% 4.3%
Carbon (C) 3500ppm 2300ppm 3255ppm 2200ppm 3300ppm 3000ppm 2850ppm
Mangenese (Mn) 1000ppm 660ppm 930ppm 630ppm 950ppm 1100ppm 1050ppm
Zinc (Zn) 150ppm 100ppm 140ppm 100ppm 135ppm 140ppm 125ppm
Copper (Cu) 60ppm 40ppm 56ppm 40ppm 55ppm 55ppm 50ppm
Cobalt (Co) 25ppm 16ppm 23ppm 15ppm 22ppm 20ppm 18ppm
Boron (B) 20ppm 13ppm 18ppm 12ppm 15ppm 18ppm 15ppm
Molybdenum (Mo) 6ppm 4ppm 6ppm 4ppm 7ppm 7ppm 8ppm

Why use NatraMin Cal-K

  • Broad spectrum minerals plus extra calcium, sulphur and potassium
  • Particularly beneficial for use on legume pastures and crops
  • Improves soil structure
  • Available in Bulk, Bulk Bags and 20kg bags.


Why remineralisation is important for your soil

After decades of farming, vital mineral elements and humus levels have been depleted from the soil, resulting in an ever increasing dependence on water soluble fertiliser. With over twenty mineral and trace elements being essential for optimum plant nutrition, soil remineralisation is a key factor to restore natural fertility to your soil.


Soil Testing

AgSolutions provides a soil testing service, allowing you to work with our qualified Field Advisors to develop, implement and monitor a soil management program designed specifically for your soil and crop needs. Read more>

Product Enquiry

Soil management program

AgSolutions recommends a program of remineralisation, mulching and crop rotation including a legume. Soil aeration is recommended where necessary and practical. Repeat applications of NatraMin are vital to restore mineral elements to your soil. As soil fertility improves, water-soluble fertiliser can often be reduced.


For more information, soil management advice or tips for spreading NatraMin, call AgSolutions Australia on 1800 81 57 57