Go to: Farming ApplicationsMining • OGM Useful information:

Global Renewables is the largest mixed waste compost producer in New South Wales with approximately 75,000 tonnes of OGM® produced each year. OGM® is Global Renewables’ industry leading compost product.

It refers to a pasteurised, high organic matter product whose nutrients are derived from garden waste, foodwaste and other elements found in the household waste stream. It is used to rehabilitate land affected by mining and improve agricultural production, particularly in pasture and broad acre cropping systems.

OGM® is a rich source of biomass and biological activity that is produced to a strict quality standard set by the New South Wales Environment Protection Authority (EPA): “the Organic Outputs from Mixed Waste Exemption 2011”. The pasteurisation of OGM® ensures the destruction of weed seeds, plant propagules and pathogenic microorganisms and meets the biosecurity requirements of the Department of Primary Industries for phylloxera control (CA-05/PBRM-05). Finally, the OGM® process has been developed to the requirements of the Australian Standard AS4454:2003.

Application of OGM® for Mine rehabilitation: Hunter Valley 2007

Farming Applications

“You build your soil while you grow better crops and pastures”.

Key Data: In 2011, OGM® was applied to approximately 10,000ha for grazing and cropping land in New South Wales. By 2017 this increased to 40,000ha and being applied to over 6,000ha every year.

OGM® provides an economical alternative to traditional fertilisers and other products that contain organic matter such as chicken litter or feedlot manure. It is suitable for most crops and pastures either incorporated into the soil prior to sowing or as a topdressing treatment to established crops and pasture.

Many soils are low in organic matter which can cause problems such as low moisture retention, poor structure and poor soil health. OGM® is particularly valuable in improving growth on those farmed out areas, poor fertility areas, sandy soils that struggle to hold adequate moisture and problem areas.

OGM® contains up to three times the nutrient value of compost produced from garden organics alone and is an excellent agricultural soil conditioner as it contains a range of nutrients, trace elements and biologically active carbon, which are needed to improve depleted agricultural soils. Applications of OGM® can help provide the organic matter and nutrients needed to boost soil microbial activity and provide long term soil health benefits. The organic matter and potassium levels are useful for both open grazing and crops that are cut for silage or hay.

Applying OGM® replenishes the soil organic carbon and helps to sustain soil quality and fertility while maintaining high production over time. Improving productivity by increasing the health of your soil will result in long term benefits.

Oats Crop: Winter 2011: Maison Dieu: Hunter Valley. OGM® was applied at 5t/ha prior to sowing.

For additional information, please contact 02 9677 3120 or by email.


Key Data: In 2011, OGM® was supplied to rehabilitate over 100Ha of land disturbed by mining in New South Wales.

Soils in post-mining landscapes are generally heavily degraded with low organic content. Poor quality topsoil and high weed invasion has often hampered rehabilitation in open cut mining operations. Soil amendments are increasingly used to improve soil quality and structure and promote the rehabilitation of open cut spoils. OGM® provides an attractive solution to mined land rehabilitation by significantly improving pasture establishment and growth of woodland species.

A trial

In May 2007 a trial was established to investigate the effect of OGM® on revegetation efforts at an open cut mine site in the Hunter Valley, NSW. OGM® was added as a soil amendment to see if pasture establishment could be improved on the out-of-pit emplacement area and to investigate whether tree and shrub establishment could also be improved. The favourable outcomes were significant with OGM® clearly improving the establishment of pasture in both overburden and topsoil areas as well as increased woodland species and improved tree height, diameter and canopy cover.

Original bare slope, prior to OGM® application and sowing.

6 months later

Pasture and tree growth 4.5 years after rehabilitation.

Both treated with OGM® on overburden: Hunter Valley

OGM Useful information:

Case studies:
The Pasture Resurrection
Where The Grass Stay Greener
Mine Site Rehabilitation

Oats Performance with OGM

Better Soil Better Pasture

Resource recovery exemption and order
(please click on “AWT outputs (mixed waste organic outputs)”):

Compost for soils:

AORA website:




NSW EPA Waste exemptions website:

For additional information, please contact 02 9677 3120 or email us.