Journal article
The impact of wheat stubble on evaporation from a sandy soil
Crop and Pasture Science, Vol.60(8), pp.730-737
2009
Abstract
In Mediterranean-type climates, dryland soil water storage and evaporation during the hot and dry summer are poorly understood, particularly for sandy-textured soils. Continued evaporation during summer, and any effects of crop stubble management, could have a significant impact on annual components of the water balance and crop yield. In this research, the effect of wheat stubble management on summer evaporation and soil water storage was investigated for a sandy soil in south-western Australia, during the summers of 200506 and 200607. Treatments comprised: retained standing stubble; retained flattened stubble; removed stubble; and removed stubble followed by burying the crowns with topsoil from an adjacent area. Under 'dry' conditions, evaporation continued at ∼0.2mm/day. In contrast to previous results for finer textured soil types, stubble retention did not decrease the rate of evaporation, but marginally (1030%) increased evaporation on 7 out of 14 days when measurements were taken. Significant differences due to stubble management were observed in two successive summers, but only for relatively dry soil conditions. There were no significant differences observed for several days after irrigation or rainfall. Under dry conditions in the absence of rainfall, total decrease in water storage during a 90-day summer period could be ∼20mm, but differences attributable to stubble management are likely to be a few mm.
Details
- Title
- The impact of wheat stubble on evaporation from a sandy soil
- Authors/Creators
- P.R. Ward (Author/Creator) - Plant IndustryK. Whisson (Author/Creator) - Plant IndustryS.F. Micin (Author/Creator) - Plant IndustryD. Zeelenberg (Author/Creator) - Plant IndustryS.P. Milroy (Author/Creator) - Plant Industry
- Publication Details
- Crop and Pasture Science, Vol.60(8), pp.730-737
- Publisher
- CSIRO Publishing
- Identifiers
- 991005543094507891
- Copyright
- © 2009 CSIRO
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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Source: InCites
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.424 Crop Yield Optimization
- Web Of Science research areas
- Agriculture, Multidisciplinary
- ESI research areas
- Agricultural Sciences