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Journal of the Department of Agriculture, Western Australia, Series 4

Authors

A D. Bathgate

Keywords

Lupins, Stubble crops, Wind erosion, Erosion control, Cost benefit analysis, Western Australia

First Page Number

15

Last Page Number

17

Abstract

Over-grazing of stubbles is a major cause of winf erosion on WesternAustralian farms. Stubble contributes to the 'roughness' of the paddock; as the roughness is reduced, the risk of winf erosion is increased.

The risk of lupinosis in sheep has previously reduced the likelihood of lupin stubble being over grazed, but the development of Gungurru, a phomopsis-resistent variety of lupin, has increased the potential for over-grazing and hence the probability of wind erosion.

This article describes the economic benefit (or cost) of conserving stubble at the conservation standards.