Approaches to scheduling water allocations to kikuyugrass grown on a water repellent soil in a drying-climate
Water allocation is a principal planning method for managing water supplies to agricultural and horticultural land in drying climates. Regulatory bodies often establish the water allocation amount, but its distribution during the irrigation season is left to the land manager’s discretion. We evaluat...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Elsevier
2019
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| Online Access: | http://hdl.handle.net/20.500.11937/81425 |
| _version_ | 1848764363543937024 |
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| author | Barton, L Flottmann, S Stefanova, Katia Colmer, T |
| author_facet | Barton, L Flottmann, S Stefanova, Katia Colmer, T |
| author_sort | Barton, L |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Water allocation is a principal planning method for managing water supplies to agricultural and horticultural land in drying climates. Regulatory bodies often establish the water allocation amount, but its distribution during the irrigation season is left to the land manager’s discretion. We evaluated approaches to best manage water allocations to a warm-season turfgrass [Pennisetum clandestinum (Holst. Ex Chiov)] grown on a free-draining sand prone to surface (0–25 mm) soil water repellence in a Mediterranean climate in south-western Australia under ‘deficit irrigation’, in a two-year field study. The three factorial experiment consisted of three levels for each treatment applied to plots (10 m2) of kikuyugrass: water allocation (5000, 6250 or 7500 kL ha−1 yr−1), irrigation schedule, and soil wetting agent rate (nil, recommended ‘label’ rate, double recommended ‘label’ rate), and was replicated three times. The irrigation schedules were based on historical net evaporation at the site, and then refined monthly using in-season net evaporation data or measurements of soil water content. Kikuyugrass growth and color was adequate when irrigated using the current regional water allocation (7500 kL ha−1 yr−1) under a low wear situation and to a lesser extent when the water allocation was lowered to 6250 kL ha−1 yr−1. Application of a soil wetting agent diminished water repellence and improved kikuyugrass color for 7500 or 6250 kL ha−1 yr−1 water allocations. Distributing a water allocation based on historical monthly net evaporation rates was a simple and effective scheduling approach to maintaining a warm-season turfgrass. |
| first_indexed | 2025-11-14T11:18:10Z |
| format | Journal Article |
| id | curtin-20.500.11937-81425 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:18:10Z |
| publishDate | 2019 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-814252022-01-04T03:35:02Z Approaches to scheduling water allocations to kikuyugrass grown on a water repellent soil in a drying-climate Barton, L Flottmann, S Stefanova, Katia Colmer, T Water allocation is a principal planning method for managing water supplies to agricultural and horticultural land in drying climates. Regulatory bodies often establish the water allocation amount, but its distribution during the irrigation season is left to the land manager’s discretion. We evaluated approaches to best manage water allocations to a warm-season turfgrass [Pennisetum clandestinum (Holst. Ex Chiov)] grown on a free-draining sand prone to surface (0–25 mm) soil water repellence in a Mediterranean climate in south-western Australia under ‘deficit irrigation’, in a two-year field study. The three factorial experiment consisted of three levels for each treatment applied to plots (10 m2) of kikuyugrass: water allocation (5000, 6250 or 7500 kL ha−1 yr−1), irrigation schedule, and soil wetting agent rate (nil, recommended ‘label’ rate, double recommended ‘label’ rate), and was replicated three times. The irrigation schedules were based on historical net evaporation at the site, and then refined monthly using in-season net evaporation data or measurements of soil water content. Kikuyugrass growth and color was adequate when irrigated using the current regional water allocation (7500 kL ha−1 yr−1) under a low wear situation and to a lesser extent when the water allocation was lowered to 6250 kL ha−1 yr−1. Application of a soil wetting agent diminished water repellence and improved kikuyugrass color for 7500 or 6250 kL ha−1 yr−1 water allocations. Distributing a water allocation based on historical monthly net evaporation rates was a simple and effective scheduling approach to maintaining a warm-season turfgrass. 2019 Journal Article http://hdl.handle.net/20.500.11937/81425 10.1016/j.agwat.2019.105957 http://creativecommons.org/licenses/by-nc-nd/4.0/ Elsevier fulltext |
| spellingShingle | Barton, L Flottmann, S Stefanova, Katia Colmer, T Approaches to scheduling water allocations to kikuyugrass grown on a water repellent soil in a drying-climate |
| title | Approaches to scheduling water allocations to kikuyugrass grown on a water
repellent soil in a drying-climate |
| title_full | Approaches to scheduling water allocations to kikuyugrass grown on a water
repellent soil in a drying-climate |
| title_fullStr | Approaches to scheduling water allocations to kikuyugrass grown on a water
repellent soil in a drying-climate |
| title_full_unstemmed | Approaches to scheduling water allocations to kikuyugrass grown on a water
repellent soil in a drying-climate |
| title_short | Approaches to scheduling water allocations to kikuyugrass grown on a water
repellent soil in a drying-climate |
| title_sort | approaches to scheduling water allocations to kikuyugrass grown on a water
repellent soil in a drying-climate |
| url | http://hdl.handle.net/20.500.11937/81425 |