PACIFIC FERTILISER

Tag: qld gypsum

Decorative Stone Brisbane
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Pacific Fertiliser, supplies a decorative pebble product suitable for gardens, pathways, driveways, and civil projects.

The decorative white stone is dolomite or limestone chip refined into a 3-8mm stone product.

We can also produce filterstone, poultry grit and selgrit.

We also supply other decorative stone products such as
- decorative white stone which is made from limestone chip refined and screened to a 3-10mm stone product.
- decorative gypsum stone – a grey opaque gypsum chip refined and screened to a 3-10mm stone product.
Pacific Fertiliser is a wholesaler so please ask your local landscape supplier about our products.

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September 17, 2018
Granular Aerial Grade Gypsum
Pacific Fertiliser releases a new Granular aerial grade gypsum product.

To compliment the existing 2-4mm granular gypsum and REGYP’s SSG10 recycled gypsum products, the larger 4-12mm granules offer the following:
- lower cost compared to 2-4mm gypsum granules
- larger granules assist with product flow in aircraft hoppers and small conical spreaders
- granular gypsum uses super fine grade natural gypsum to make the larger granules so once wet the solubility is still good
- lower dust compared to powdered product
- ability to blend it with other granulated products and liquid biology stimulants
February 21, 2016
Granular Gypsum

Pacific Fertiliser produce a granular gypsum product suitable for air seeder and aircraft application.

The 2-4mm granular gypsum is made locally from blending various domestic sources of natural gypsum together to make consistent and stable particles. We then re screen the product after granulation to ensure there are no fines present.

For sport turf applications we also produce a 1-2mm gypsum product.

January 22, 2016
Brisbane Spreading

Pacific Fertiliser can offer agricultural spreading options in the Brisbane, Gold Coast, Lockyer, Darling Downs and Burnett regions.

We have sophisticated gear with GPS guidance, variable rate controllers and banding options for hort/row crops.

Spreader Accuracy:
Contract Spreader’s Agrispread AS120T and tractors fitted with the Trimble system provide strong data feedback during operation. It allows agronomists and farmers to send variable rate application maps to the machine.

Variable rate lime and gypsum spreading can save farmer input costs and increase productivity for their land through applying the correct amount of product where it is required.

The system offers real-time data reporting providing traceability of where the spreader is and check its application rates and other diagnostics such as total weight spread etc.

It gives the grower absolute confidence in what the spreading contractor is doing and when it is doing it and gives us complete oversight of the job.

With a large 16m3 hopper and 36m spread width on urea, the AS120T spread can cover a lot of country in a day.

January 1, 2016
What is Gypsum

Gypsum (CaSO₄· 2H₂O) is a soft white, grey, brownish or slightly pink mineral consisting of hydrated calcium sulphate also know as calcium sulphate di-hydrate. It occurs mainly in sedimentary deposits and is used to for soil amelioration and in building construction materials.

Gypsum is moderately water-soluble (~2.0–2.5 g/l at 25 °C) and, in contrast to most other salts, it exhibits retrograde solubility, becoming less soluble at higher temperatures.

Gypsum is generally found in mineral and rock form, but there is also recycled, synthetic and byproduct forms of gypsum. Mined gypsum is a very soft mineral and it can form very large colored crystals. Natural gypsum is found in many parts of the world. Gypsum deposits lie in flat beds of about six to eight feet in thickness, and are often inter-layered with limestone or shale. Gypsum deposits were formed millions of years ago when salt water oceans covered most of the earth, and as they receded, may inland “dead” seas were formed which, as evaporation continued, became more and more salty. As those salts precipitated, they formed various compounds in turn, one of which was gypsum. As millions of years passed, these salt deposits combined with decayed vegetation and other minerals, and eventually the result was stratified rock, with layers of gypsum and layers of limestone alternating, the whole covered over with many feet of glacial deposits. The result is the accumulation of large beds of sedimentary gypsum near old salt lakes and inland river beds.

The main types of gypsum in the market place for agricultural, civil and industrial application are:

Natural gypsum: is mined from the ground as a mineral and sold for industrial, medical and agricultural uses. Generally the mined gypsum will be selenite gypsum which is an opaque sandy crystal gypsum. There are various grades of mined gypsum and it is essential you determine you are getting the best bang for your buck. The easiest method of comparison is gypsum purity or each gypsum source available to you.

Recycled Gypsum: is derived from plasterboard waste and is a high quality source of gypsum. The product has a granular feel making it easier to spread. The granules porous structure increases the surface area making the recycled gypsum more soluble. Read more.

Synthetic gypsum (Not Sold by PacFert): industrial gypsum, FGD (Flu Gas Desulphurised Gypsum) and DSG (Desulphurised Gypsum) are all names for gypsum which are created by through chemical processes and not mined virgin product. Synthetic gypsum is most typically created in scrubbers, using lime (Ca), in coal fired power plants to clean the sulphur (SO) from the smoke stacks. The lime and sulfate combine and make synthetic gypsum (CaSO₄· 2H₂O) which is a high quality and very pure gypsum material. Chemically this gypsum is identical to natural gypsum.

Phosphogypsum (Not Sold by PacFert): refers to the gypsum formed as a by-product of processing phosphate ore into fertilizer with sulfuric acid, such as Phosphate Hill in Central West QLD. REGYP DOES NOT SELL Phosphogypsum in Australia. Phospho gypsum is produced from the fabrication of phosphoric acid by reacting phosphate rock with sulfuric acid. Phosphogypsum does contain moderate levels of heavy metals including cadmium and REGYP recycled gypsum products DO NOT, so the two should not be confused. Phosphogypsum is radioactive due to the presence of naturally occurring uranium and radium in the phosphate ore. Marine-deposited phosphate typically has a higher level of radioactivity than igneous phosphate deposits, because uranium is present in seawater.

Comparing Gypsum Products: Please follow the link for a complete gypsum comparison report.

December 18, 2015
Buying Gypsum
When buying gypsum from any supplier please ask the following questions when requesting delivered or ex works prices.
- Price $/tonne
- Do you have a recent analysis report (less than 6 months old) including
  - Gypsum purity (%)
  - Calcium and sulphur content (%)
  - Sizing (top and mean size)
  - Salt content %
  - Moisture content %
Gypsum Quality Classification:
- Premium Grade Gypsum described as : Gypsum must contain a minimum of 89% purity, 16.5% sulphur (S) and a minimum of 21.0% Calcium (Ca).
- Grade 1 Gypsum described as : Gypsum must contain a minimum of 81% purity, 15.0% sulphur (S) and a minimum of 19.0% Calcium (Ca).
- Grade 2 Gypsum described as : Gypsum must contain a minimum of 67% purity, 12.5% sulphur (S) and a minimum of 15.5% Calcium (Ca).
- Grade 3 Gypsum described as : Gypsum must contain a minimum of 54% purity, 10.0% sulphur (S) and a minimum of 12.5% Calcium (Ca).
Purity of gypsum is calculated by dividing the Sulphur content % by 0.186 (i.e. gypsum with 100% has 18.6% Sulphur).
August 23, 2015
Road Training Gypsum Throughout QLD

Pacific Fertiliser is current supplying some large volumes of gypsum in QLD.

To cater for the demand we had to assemble some of our trailers into a road train.

June 26, 2015
Gypsum Prospecting

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Pacific Fertiliser has been out to take gypsum samples of the exploration area in the Culgoa area. The initial results are promising.

Gypsum available from a potential Culgoa gypsum mine would enable Pacific Fertiliser to sell back to Goondiwindi from the west of hebel and further to the north and south.

The target area captures a lot of the irrigated cotton growing country as well as dry land grain growers, that Pacific Fertiliser’s Brisbane plant is a little too far from.

The results from testing the Mulga Gypsum sampled within the exploration area will be compared with the recent eastern seaboard gypsum comparison undertaken by Pacific Fertiliser – see link.

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June 8, 2015
Pacific Fertiliser Releases a New Brochure

PacFert releases a new products brochure. The brochure contains a lot of the products we supply, however there are many more so please feel free to enquire if it is not on the website or in the brochure.

Please download a copy of the new brochure:

download

May 14, 2015
Macintyre River Field Day

Recently in the Goondiwindi area in the Macintyre Valley, cotton roots depths were tested in various cotton fields using a capacitance probe.

It was found some crops were drawing water from 100cm, some 80cm and about 30% were only around 60cm deep late in the season.

The shallower roots depths could be caused from poor soil structure leading to a reduction in root penetration and lower water extraction. These fields with lower root depths were also showing issues with irrigation water, such as run off.

Dr Oliver Knox of from the University of New England, said there was a range of options growers could try to repair soil structure and restore rooting depth. Given the levels of soil compaction and sodicity, gypsum was an option but given the depth it might have to be dip ripped or applied yearly to achieve results over the long term injunction with applications of organics and crop rotation.

Source: The Land – Neil Lyon

May 5, 2015