Nitrogen and water management implications on grape production in the Riverina wine grape regions in South Eastern Australia

Bruno Holzapfel, Stewart Field, Markus Muller

Research output: Contribution to journalArticle

Abstract

Management of water and nitrogen is variable in the Riverina (NSW, Australia), being one of the major reasons yield and berry composition differ between Shiraz vineyards in this wine region. Both inputs can have a major impact on yield, canopy size and berry composition. Large canopies produced by excessive water and N supply result in shading of grapes and competition between vegetative and reproductive sinks of vines. The strategic application of water and N can be utilised to produce grapes and wines of higher quality and reduce the negative impacts on the environment. A field trial was conducted on a drip-irrigated Shiraz vineyard with three irrigation and three N treatments implemented. Partial rootzone drying (PRD) and regulated deficit irrigation (RDI) showed higher berry colour, but were less productive (vigour, yield) than the control (CTL). The water use efficiency (WUE) was improved by PRD and lowered by RDI. The N timing had little effect on vine productivity, but N applied in spring leads to higher juice amino N than juice from vines receiving the same amount of N after harvest. PRD vines produced the lowest amino N in the fruit.
Original languageEnglish
Pages (from-to)17-26
Number of pages10
JournalOffice International de la Vigne et du Vin. Bulletin: revue internationale
Volume81
Issue number923
Publication statusPublished - 2008

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wine grapes
viticulture
root zone drying
water management
vines
small fruits
deficit irrigation
nitrogen
vineyards
wines
juices
grapes
canopy
water use efficiency
vigor
shade
field experimentation
water
irrigation
fruits

Cite this

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title = "Nitrogen and water management implications on grape production in the Riverina wine grape regions in South Eastern Australia",
abstract = "Management of water and nitrogen is variable in the Riverina (NSW, Australia), being one of the major reasons yield and berry composition differ between Shiraz vineyards in this wine region. Both inputs can have a major impact on yield, canopy size and berry composition. Large canopies produced by excessive water and N supply result in shading of grapes and competition between vegetative and reproductive sinks of vines. The strategic application of water and N can be utilised to produce grapes and wines of higher quality and reduce the negative impacts on the environment. A field trial was conducted on a drip-irrigated Shiraz vineyard with three irrigation and three N treatments implemented. Partial rootzone drying (PRD) and regulated deficit irrigation (RDI) showed higher berry colour, but were less productive (vigour, yield) than the control (CTL). The water use efficiency (WUE) was improved by PRD and lowered by RDI. The N timing had little effect on vine productivity, but N applied in spring leads to higher juice amino N than juice from vines receiving the same amount of N after harvest. PRD vines produced the lowest amino N in the fruit.",
author = "Bruno Holzapfel and Stewart Field and Markus Muller",
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AU - Field, Stewart

AU - Muller, Markus

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AB - Management of water and nitrogen is variable in the Riverina (NSW, Australia), being one of the major reasons yield and berry composition differ between Shiraz vineyards in this wine region. Both inputs can have a major impact on yield, canopy size and berry composition. Large canopies produced by excessive water and N supply result in shading of grapes and competition between vegetative and reproductive sinks of vines. The strategic application of water and N can be utilised to produce grapes and wines of higher quality and reduce the negative impacts on the environment. A field trial was conducted on a drip-irrigated Shiraz vineyard with three irrigation and three N treatments implemented. Partial rootzone drying (PRD) and regulated deficit irrigation (RDI) showed higher berry colour, but were less productive (vigour, yield) than the control (CTL). The water use efficiency (WUE) was improved by PRD and lowered by RDI. The N timing had little effect on vine productivity, but N applied in spring leads to higher juice amino N than juice from vines receiving the same amount of N after harvest. PRD vines produced the lowest amino N in the fruit.

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