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Salinity and Water Penetration in Australian Soils

In some areas of Australia the problems of soil salinity and water penetration are of great economic importance.

The film explains the causes and effects of salinity in the soils of the Western Australian wheat belt and the Murray-Darling irrigation settlements. Methods of correcting these problems are mentioned briefly, but the need for prevention is stressed.

The resistance of some soils to water penetration is shown, using as examples the water-repellent sands of some low rainfall pasture lands and the irrigated areas of grey and brown clays. Although it is possible to successfully treat the clay soils with gypsum, the problem of sandy soils has yet to be solved.

Produced in 1968.

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