|Author:||Greven, M. ; Green, S. ; Neal, S. ; Clothier, B. ; Neal, M. ; Dryden, G. ; Davidson, P.|
|Book Group Author:||NA|
With a fast change of land use in Marlborough from extensive pastoral farming to intensive irrigated viticulture, a need has risen to investigate the sustainable use of the available water. In 2001 a 5 ha irrigation research project was installed in a Marlborough Sauvignon Blanc vineyard. Irrigation treatments installed were control (compensate 100% for crop evapotranspiration (ETO)), 80%, 70% and 60% of ETO. During the two years that the Regulated Deficit Irrigation (RDI) trial has run so far, very different climatic conditions created much greater differences in yield and vegetative growth, than up to 40% reduction in irrigation, none of which were significant. The use of sap flow in the vines has been fine-tuned and is now giving reliable results on which to base vine water need.
|Pages:||9 - 17|
|Journal:||Water Science and Technology|
crop production, crop quality, crop yield,evapotranspiration, grapes, growth, interception, irrigation, irrigationscheduling, irrigation water, leaf water potential, leaves,meteorological observations, plant water relations, sap flow, seasonalvariation, stems, sustainability, transpiration, vineyards, waterconservation, water supply, water use, water use efficiency, NewZealand, Vitis, Vitis vinifera, Vitidaceae, Rhamnales, dicotyledons,angiosperms, Spermatophyta, plants, eukaryotes, Vitis, Australasia,Oceania, Developed Countries, Commonwealth of Nations, OECD Countries,sap ascent, seasonal changes, seasonal fluctuations, Vitaceae, watersupplies, watering, Horticultural Crops (FF003) (New March 2000), PlantPhysiology and Biochemistry (FF060), Plant Water Relations (FF062),Plant Production (FF100), Soil Water Management (Irrigation andDrainage) (JJ800) (Revised June 2002) [formerly Soil Water Management],Meteorology and Climate (PP500), Crop Produce (QQ050), Food Composit