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Close-up of a head of wheat and surrounding leaves covered in a thin layer of sparkling frost crystals

The science of frost and frequently asked questions

8 February 2011

Frost risk occurs virtually every year across southern and eastern agricultural regions. Actual occurrence of frost is determined by location and landscape factors as well as climate.

Dispersing (sodic) waterlogged soil

Managing waterlogged dispersive (sodic) soils

2 February 2011

Waterlogging causes clay to disperse in sodic soils, leading to soil structure collapse.

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Aphid feeding damage to cereal crops

14 February 2011

Adult and nymph aphids suck sap with large populations limiting grain yield and size, especially winter and spring infestations.

Raised beds near North Stirling

Raised beds – design, layout, construction and renovation

10 February 2011

Permanent raised beds are a practical and economic means of managing some waterlogged sites in wetter areas of the Western Australian grainbelt.

Harvesting canola on raised beds

Cropping on raised beds in Western Australia

10 February 2011

Permanent raised beds are a practical and economic means of managing some waterlogged sites in wetter areas of the Western Australian grainbelt.

Raised beds in Cunderdin

Raised beds to alleviate waterlogging in Western Australia

2 February 2011

Raised beds are a long-term option for waterlogged sites and increasing crop yield on target areas.

Crop yellowing and raised beds at North Stirling

Managing waterlogging in crops and pastures in South West Western Australia

1 February 2011

Waterlogging causes significant reductions in plant growth in some years and some environments in the high rainfall (greater than 600 mm annual rainfall) areas of South West Western Australia.

Waterlogging near Kendenup

Waterlogging – the science

9 February 2011

Waterlogging is a common problem in the agricultural soils of south-west Western Australia in the wetter months of winter.

Waterlogging near Frankland

Diagnosing waterlogging in south-west Western Australia

9 February 2011

Waterlogging in the higher rainfall areas (more than 450 mm annual rainfall) of south-west Western Australian crops and pastures is a common cause of reduced plant growth in winter, especially on d

Capeweed flower head

Capeweed reduces crop yield

4 February 2011

In Western Australia, competition from 7-90 capeweed plants per square metre in a wheat crop can reduce crop yield by 28-44% and net return by 25-76%.

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