Abstract
A field-scale solute transport experiment was undertaken using a bromide tracer to understand leaching in soils of drip irrigated vineyards. The effect of applied irrigation volume was investigated with 3 distinct emitter rates (treatments) of 1 L /h (T1), 1.6 L /h (T2) and 2.3 L /h (T3). Depth concentration profiles of bromide and the recovered mass of applied bromide showed just one significant difference (times 2) between the irrigation volume treatments. Soil water content remained very high throughout the experiment, which indicates that antecedent soil moisture is a major factor that strongly influences soil leaching rates and patterns. These results on bromide movement are indicative of nitrate and salt movement and suggest that close attention needs to be placed on irrigation timing and soil water content to avoid excessive leaching, especially when fertiliser is applied so that nutrients are kept within the root zone.
Original language | English |
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Title of host publication | 19th Proceedings |
Subtitle of host publication | Soil solutions for a changing world |
Place of Publication | Netherlands |
Publisher | International Union of Soil Sciences |
Pages | 169-172 |
Number of pages | 4 |
ISBN (Electronic) | 9780646537832 |
Publication status | Published - 2010 |
Event | World Congress of Soil Science - Brisbane, Australia, Australia Duration: 01 Aug 2010 → 06 Aug 2010 |
Conference
Conference | World Congress of Soil Science |
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Country/Territory | Australia |
Period | 01/08/10 → 06/08/10 |