Proven Results & Research

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

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Researching and formulating the best possible liming products

At Optima Agriculture we like to think that one of the things that sets us apart is our dedication to researching and formulating the best possible liming products and an ability to deliver proven results to our customers. In fact, we don’t want you just to take our word for it. These test cases demonstrate how our scientific approach to liming has delivered measurable results to real life farming operations.

Want to talk more about the Optima range? Contact us today.

Higher yields and better potatoes

A trial conducted near Pemberton in 2010 was able to demonstrate that the use of our liming products delivered a higher, more profitable yield of better quality potatoes.

By applying CalSap Horticulture to potatoes, the following benefits to the grower can include: 
  • Increased calcium content in the skin of the tuber
  • Decreased harvest and handling damage, therefore improving marketable yield
  • Improved yield and storage life
  • Improved resistance to soil borne diseases
  • Reduced uptake of sodium and chlorides

Positive effects on pasture

A long term pasture trial near Holbrook in New South Wales showed CalSap to outperform 9 other treatments and deliver significantly more dry matter.

  • Yield Gains and the Economic Benefits
  • Higher gross profit returns from extra production
  • Salinity Reduction Results


CalSap increases citrus fruit quality

In 2011 a citrus orchard in Bindoon conducted a trial of CalSap against the traditionally used CalNitrate and found it to dramatically improve the quality of the fruit produced.

CalSap Increases Citrus Fruit Quality

Optima delivers yield gains and salinity reduction in irrigated pasture operations

The application of soluble liming products resulted in demonstrated increased yields and profits, while measurably reducing Sodium and Chloride levels in the soil.

28L Calsap followed by 10L Calsap

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)