Journal
AUSTRALIAN JOURNAL OF SOIL RESEARCH
Volume 46, Issue 3, Pages 237-256Publisher
CSIRO PUBLISHING
DOI: 10.1071/SR07125
Keywords
compaction; pugging; treading; poaching; indicator; pasture yield; macropore; bulk density; soil quality; indicator; trampling; cattle
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This paper reviews animal treading and the associated effects on soil physical properties and pasture productivity from treading-induced soil compaction and pugging. Response curve relationships between soil physical properties (e. g. macroporosity, air-filled porosity, bulk density) and pasture and crop yield are reviewed. Optimum soil macroporosity for maximum pasture and crop yield ranges from 6 to 17% v/v, but there is a paucity of yield response curves for pastoral systems, particularly critical or optimum values of soil physical properties. There is little information available on the effects of cattle treading on soil physical properties and consequently pasture yield in seasons when soil pugging and poaching is minimised. Such information is needed to provide practical and rigorously tested decision support tools for land managers during grazing seasons. Knowledge of yield response curves, and critical or optimum values of soil physical properties for field pasture-based grazing systems, is required for improved farm-system production and economic decision support.
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