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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.
Waterlogging causes clay to disperse in sodic soils, leading to soil structure collapse.
Permanent raised beds are a practical and economic means of managing some waterlogged sites in wetter areas of the Western Australian grainbelt.
Raised beds are a long-term option for waterlogged sites and increasing crop yield on target areas.
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.