The effect of drip emitter rate on bromide movement in a drip irrigated vineyard

Jonathan Holland, Philip Charlton

Research output: Book chapter/Published conference paperConference paperpeer-review

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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 languageEnglish
Title of host publication19th Proceedings
Subtitle of host publicationSoil solutions for a changing world
Place of PublicationNetherlands
PublisherInternational Union of Soil Sciences
Pages169-172
Number of pages4
ISBN (Electronic)9780646537832
Publication statusPublished - 2010
EventWorld Congress of Soil Science - Brisbane, Australia, Australia
Duration: 01 Aug 201006 Aug 2010

Conference

ConferenceWorld Congress of Soil Science
Country/TerritoryAustralia
Period01/08/1006/08/10

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