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Oebel Oebel, Gerhards Gerhards, Beckers Beckers (2004)
Teilschlagspezifische Unkrautbekämpfung durch raumbezogene Bildverarbeitung im Offline (und Online)‐Verfahren (TURBO) – erste Erfahrungen aus der PraxisZeitschrift für Pflanzenkrankheiten und Pflanzenschutz, XIX
M. Paice, P. Miller, J. Bodle (1995)
An Experimental Sprayer for the Spatially Selective Application of HerbicidesJournal of Agricultural Engineering Research, 60
Dammer Dammer, Böttger Böttger, Ehlert Ehlert (2003)
Sensor‐controlled variable rate application of herbicides and fungicidesPrecision Agriculture, 4
L. Wiles, G. Oliver, A. York, H. Gold, G. Wilkerson (1992)
Spatial Distribution of Broadleaf Weeds in North Carolina Soybean (Glycine max) FieldsWeed Science, 40
Dieleman, Mortensen (1999)
Characterizing the spatial pattern of Abutilon theophrasti seedling patchesWeed Research, 39
R. Gerhards, S. Christensen (2003)
Real‐time weed detection, decision making and patch spraying in maize, sugarbeet, winter wheat and winter barleyWeed Research, 43
J. Cardina, D. Sparrow, E. Mccoy (1995)
Analysis of Spatial Distribution of Common Lambsquarters (Chenopodium album) in No-Till Soybean (Glycine max)Weed Science, 43
Precision Sprayer, L. Tian (1999)
DEVELOPMENT OF A PRECISION SPRAYER FOR SITE-SPECIFIC WEED MANAGEMENTTransactions of the ASABE, 42
P. Thornton, R. Fawcett, J. Dent, T. Perkins (1990)
Spatial weed distribution and economic thresholds for weed controlCrop Protection, 9
G. Johnson, D. Mortensen, C. Gotway (1996)
Spatial and Temporal Analysis of Weed Seedling Populations Using GeostatisticsWeed Science, 44
Lamb Lamb, Brown Brown (2001)
Remote sensing and mapping of weeds in cropsJournal of Agricultural Engineering Research, 78
Nordmeyer Nordmeyer, Zuk Zuk (2002)
Teilflächenunkrautbekämpfung in WinterweizenZeitschrift für Pflanzenkrankheiten und Pflanzenschutz, XVIII
Felton Felton, McCloy McCloy (1992)
Spot sprayingAgricultural Engineering, 11
E. Marshall (1988)
Field‐scale estimates of grass weed populations in arable landWeed Research, 28
Tian Tian, Reid Reid, Hummel Hummel (1999)
Development of a precision sprayer for site‐specific weed managementTransactions of the American Society of Agricultural Engineers, 42
Christensen Christensen, Heisel Heisel (1998)
Patch spraying using historical, manual and real‐time monitoring of weeds in cerealsZeitschrift für Pflanzenkrankheiten und Pflanzenschutz, XVI
R. Gerhards, M. Sökefeld, K. Schulze-Lohne, D. Mortensen, W. Kühbauch (1997)
Site Specific Weed Control in Winter WheatJournal of Agronomy and Crop Science, 178
Gerhards Gerhards, Sökefeld Sökefeld, Nabout Nabout, Therburg Therburg, Kühbauch Kühbauch (2002)
Online weed control using digital image analysisZeitschrift für Pflanzenkrankheiten und Pflanzenschutz, XVIII
S. Christensen, T. Heisel, A. Walter, E. Graglia (2003)
A decision algorithm for patch sprayingWeed Research, 43
M. Williams, R. Gerhards, D. Mortensen (2000)
Two-Year Weed Seedling Population Responses to a Post-Emergent Method of Site-Specific Weed ManagementPrecision Agriculture, 2
R. Gerhards, D. Wyse-Pester, D. Mortensen, G. Johnson (1997)
Characterizing spatial stability of weed populations using interpolated mapsWeed Science, 45
Sökefeld Sökefeld, Gerhards Gerhards, Kühbauch Kühbauch (2000)
Teilschlagspezifische Unkrautkontrolle – von der Unkrauterfassung bis zur HerbizidapplikationZeitschrift für Pflanzenkrankheiten und Pflanzenschutz, XVII
C. Timmermann, R. Gerhards, W. Kühbauch (2003)
The Economic Impact of Site-Specific Weed ControlPrecision Agriculture, 4
D. Lamb, Ralph Brown (2001)
PA—Precision Agriculture: Remote-Sensing and Mapping of Weeds in CropsJournal of Agricultural Engineering Research, 78
J. Stafford, P. Miller (1993)
Spatially selective application of herbicide to cereal cropsComputers and Electronics in Agriculture, 9
Biller Biller (1998)
Pflanzenunterscheidung und gezielter Einsatz von HerbizidenForschungs – Report, 1
Summary Information on temporal and spatial variation in weed seedling populations within agricultural fields is very important for weed population assessment and management. Primarily, spatial information allows a potential reduction in herbicide use, when post‐emergent herbicides are only applied to field sections with high weed infestation levels. This paper presents a system for site‐specific weed control in sugar beet, maize, winter wheat, winter barley, winter rape and spring barley. The system includes on‐line weed detection using digital image analysis, computer‐based decision making and Global Positioning System‐controlled patch spraying. In a 2‐year study, herbicide use with this map‐based approach was reduced in winter cereals by 6–81% for herbicides against broad leaved weeds and 20–79% for grass weed herbicides. Highest savings were achieved in cereals followed by sugar beet, maize and winter rape. The efficacy of weed control varied from 85% to 98%, indicating that site‐specific weed management will not result in higher infestation levels in the following crops.
Weed Research – Wiley
Published: Jun 1, 2006
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