Maintenance and improvement of soil structure [Western Australia]. [Workshop paper].
1989
Hamblin A.P. | Howell M.R.
Few Western Australian soils have satisfactory structures even in the virgin state. Many have been substantially degraded by relatively short periods of agricultural activity. It is probable that surface soil structural deterioration will continue on many finer-textured soils if current systems of land management are not modified. The majority of such soils, comprising some 30 percent of agricultural land in Western Australia, have surfaces which readily slake, disperse and either crust or set massively when dry. in addition most arable soils, particularly those in the sand to loamy sand classes, have some degree of induced compaction at the base of the A horizon. Effective management systems for optimising water use will need to rely more closely on matching appropriate plant types and associated agronomic practice to specific soil and climatic ecosystems. Stabilization in many instances may then be maintained by conservation tillage practices.
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