Liquid Nutrition

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Get our concise guide to argriculture liming products used in WA.

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Optima Agriculture has just launched an exciting range of liquid nutrients suitable for in-furrow or foliar application.

With the ongoing development of the liquid fertiliser market Optima have brought together a range of Phosphorus, Potassium and trace element products to complement a wide range of farming practices. Balanced nutrition is a key in ensuring you grow a robust and productive crop, especially when environmental conditions are problematic.  


  •  High efficiency chemistry implemented to maximise plant uptake.
  • Bulk delivery available where appropriate. Don't pay for unnecessary packaging
  • Formulated to address most common trace element deficiencies
          Liquid Nutrition


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Stylised Image showing "Bidentate" Amino Chelate
  • Advanced Amino Acid chelation products available.
  • Improved compatibility with common ag chemicals.
  • Supported by Optima Measure, Monitor, Manage planning and advice.

Liquid Nutrient Range

Liquid Macro-Nutritiion

  • Furrow-PK: Phosphorus and Potassium in a neutral formulation. Ideal for in-furrow application at seeding
  • Liquid Potassium: High Analysis Potassium (26%w/v) powered by citrate chemistry. Suitable for in-furrow or foliar application.

Gold Class Amino Acid Chelates

  • Gold Class Potassium - 18%w/v Potassium Complex
  • Gold Class Manganese - 10%w/v Manganese Complex
  • Gold Class Zinc - 10%w/v Zinc Complex
  • Gold Class Copper - 5.1%w/v Copper Complex
  • Gold Class Calcium - 6.2% Calcium, 0.5% Boron Complex
  • Gold Class Boron - 5.2% Boron Complex

What the Farmers are saying

  • Working with Optima Agriculture has helped me learn much more about my soils. I have found their field days to be really worthwhile attending and their staff are knowledgeable...

    Noel Miguel of Beacon, WA

  • We see CalSap as a tool that will help us get a liming effect in the sub-soil quicker...

    Dennis and Paul Turner of Ravensthorpe, WA

  • We persevered until 2015 when we decided to try some CalSap and liquid Phosphate product from Optima last year...

    Clint Della Bosca of Southern Cross, WA

  • After 10 years, I continue to use CalSap as the base of my soil sustainability program, which I use in conjunction with a nutrient management plan...

    Ben Scaravilli of Perth Hills, WA (Apple and Stone Fruit Producer)

  • CalSap is easy to use as a monthly maintenance tool and easy to apply...

    David Phelps of Toongabbie BC & Dundas BC (Greenkeeper)

  • Since incorporating CalSap into our maintenance program we have noticed improved water penetration and a significant drop in sodium and salinity in our latest soil tests...

    Brad Morcomb of Goonawarra, GC (Superintendent)

  • I would recommend CalSap Turf to anyone looking at options for sodium issues...

    Darren Peebles of Bondi Golf Club (Superintendent)