Precision Agriculture In Viticulture By Pam Turner
Vineyard Information Area Dedicated to Wine Spain 11,750 km² France 8,640 km² Italy 8,270 km² Turkey 8,120 km² United States 4,150 km² Iran 2,860 km² Romania 2,480 km² Portugal 2,160 km² Argentina 2,080 km² Australia 1,642 km² Production 71% wine 27% fresh fruit 2% dried fruit Vineyards 2% Yearly increase
Oklahoma’s Vineyards
Precision Viticulture Branch of Precision Agriculture that was proposed in the early 1990’s Must maximize yield and quality
Vine Vigor GPS and NDVI Determines Harvesting time Quality
Management Zones
Irrigation Use of infrared readings of leaf temperature. Has an effect on time of onset and degree of weight loss.
Vine row interaction NDVI vineyard Extracted Rows (yellow) Background (blue) Must delete non-representative plants and vegetation Ensures health and vigor of vines Aids pruning process
Gap Identification Give total area of missing vines Potential for re-planting
Herbicide Application Identifies and selects weed material at a resolution of < 1 cm2 Permitted a reduction in herbicide application by 85%
Selective Harvesting Select high-vigor from low vigor areas Increases wine quality Increases retail value But perhaps the most elegant use of the technology is to mount a GPS device on a tractor, couple it to a computer with GIS software, and then selectively remove cover crops from low-vigor areas of the vineyard, and leaving them in high vigor regions. This is done automatically as the tractor is driven through the vineyard, and can be targeted precisely, row by row.
Yield Monitors “On the Go” georeferenced records of yield Most popular method: Conveyor belt
Where is Precision Viticulture going? Improve mechanical pruning methods Detect sugar content of the entire field
“Great wine is grown, not made”
References http://www.mikebobbitt.com/NDVI_Vineyard_format.htm http://www.catenawines.com/eng/vineyards/precision-viticulture.html http://www.regional.org.au/au/gia/ http://www.geovine.com/pdf/PVProfitabiltyPaper.pdf http://ppvco.com/develop.php http://www.usyd.edu.au/su/agric/acpa/people/james/Thesis/Chapter%203_Taylor2004.pdf http://www.nzwine.com/index.html http://wineserver.ucdavis.edu/ http://www.lincoln.ac.nz/section671.html http://cati.csufresno.edu/verc/ http://www.crcv.com.au/resources/Precision%20Viticulture/ http://www.csiro.au/science/ps1xy.html http://www.provisor.com.au/apps/uploadedFiles/news/80/Precision_Viticulture.pdf http://precisionaginc.com/viticulture.shtml http://www.csu.edu.au/nwgic/pages/research/sustainable_viticulture.htm http://www.scipub.net/agriculture/precision-agriculture.html http://www.uark.edu/depts/ifse/grapeprog/vinemech.htm http://www.mikebobbitt.com/NDVI_Vineyard_format.htm