Soil Nutrition

Choose compost for your spring fertiliser

Not only is compost an organic and recycled fertiliser, but it offers many benefits to increase your on-farm performance. Make a long-term investment in your soil structure with Tirohia compost.

Soil nutrition

Adding a product high in organic matter helps aerate the soil, which in turn resists compaction and helps the retention of moisture in the soil. Compost is a “slow release” fertiliser. This means more nutrients end up absorbed into the soil, rather than running off into drains and waterways. Spreading compost on grass and crop paddocks
adds a thin layer of organic matter with every application.


Get that grazing back and make use of those nutrients!

Our Strautman spreader and Case 230hp tractor effectively and accurately spread compost. The spreader ensures an even application is achieved and that no binding or clogging occurs.

We can supply, transport and spread, all in one easy phone call.

Practical experience

HG Leach pasture growth trials have shown successful returns in milk solids production, soil condition, pasture growth and dry matter yield.

Farmers find our compost to be a great supplement for conventional fertilisers, and like applying organic material back into the soil – compost is more than just about grass growth, it is an investment into your soil’s future.

  • Increase grass and crop yield by reducing the use of chemical fert
  • Compost manufacture, supply and spreading.
  • Compost is a long term investment in soil nutrition, its high in nutrients, slow release, adds organic matter
 to resist soil compaction, is environmentally responsible and helps replace lost topsoil.

Recommended application rates

Fine screened compost (< 40mm)

Dairy farms 2.5t/h
Forestry to dairy conversions 5-10t/h
Horticulture 10t/h
Cropping/maize 10-20t/h

Unscreened coarse compost (> 40mm) is suitable for use as mulch, particularly in horticultural applications.

Compost analysis (typical concentration range)

Dry matter 50-60
Organic matter 40-45
Nitrogen 0.70-1.2
Phosphorous 0.30-0.65
Potassium 0.15-0.35
Calcium 1.90-5.50
Magnesium 0.11-0.28
Sodium 0.09-0.16

A typical trace element analysis is available on request.