Precision Agriculture 1; Scientific Panel 7; Reviewers 9; International Program Committee of the 4th ECPA 11; Editorial 25; On-the-go mapping of soil properties using ion-selective electrodes 27; V.I. Adamchuk, E. Lund, A. Dobermann and M.T. Morgan; The use of radiative transfer models for remote sensing data assimilation in crop growth models 35; Heike Bach, Wolfram Mauser and Karl Schneider; A metadata profile for precision agriculture based on ISO 19115 standard 41; M. Backes, D. Dorschlag and L. Plumer; Using site specific weed management for control of winter wild oats in Spain: An economic evaluation 47; J. Barroso, C. Fernandez-Quintanilla, B. Maxwell and L. Rew; Assessing and modelling spatial variability of yield and grain quality of durum wheat under extreme dry conditions 53; B. Basso, P. De Vita, F. Basso, A.S. De Franchi, R. Faraone Mennella, M. Pisante, F. Nigro and N. Di Fonzo; Evaluation of variable depth tillage: economic aspects and simulation of long term effects on soil organic matter and soil physical properties 61; B. Basso, L. Sartori, M. Bertocco and G. Oliviero; Estimating break-even cost to move from single to multiple soybean variety management within a field 69; W. D. Batchelor, J.O. Paz and J.W. Jones; Simulating the spatial variation of soil mineral N within fields using the model SUNDIAL 75; S.J. Baxter, M.A. Oliver, J. Gaunt and M.J. Glendining; Row detection in high resolution remote sensing images of vine fields 81; W. Bobillet, J.P. Da Costa,, C. Germain,, O. Lavialle, and G. Grenier,; Prediction of protein content in cereals using canopy reflectance 89; Thomas Borjesson and Mats Soderstrom. Assessment of spatial correlation between wheat yields and some physical and chemical soil properties 95; H. Bourennane, B. Nicoullaud, A. Couturier and D. King; Non-contacting chlorophyll fluorescence sensing for site-specific nitrogen fertilization in wheat and maize 103; C. Bredemeier and U. Schmidhalter; Field-based multiangular remote sensing for plant stress monitoring 109; R. Casa and H.G. Jones; Is precision agriculture irrelevant to developing countries? 115; S.E. Cook, R. O'Brien,, R.J. Corner and T. Oberthur; A Comparison of EMI and DC methods used in soil mapping - theoretical considerations for Precision Agriculture 121; M. Dabas and A. Tabbagh; Sensor-controlled variable rate real-time application of herbicides and fungicides 129; K.-H. Dammer, H. Bottger and D. Ehlert; Automated methods for mapping patterns of soil physical properties as a basis for variable management of crops within fields 135; P.M.R Dampney, J.A King, R.M. Lark, H.C. Wheeler, R.I. Bradley and T.R. Mayr; Weed leaf recognition in complex natural scenes by model-guided edge pairing 141; Benoit De Mezzo, Gilles Rabatel and Christophe Fiorio; A genetic algorithm approach to discover complex associations between wild-oat density and soil properties 149; B. Diaz, A. Ribeiro, D. Ruiz, J. Barroso and C. Fernandez-Quintanilla; Spatial and temporal dynamics of weed populations in crop rotations under the influence of site-specific weed control 157; D. Dicke, P. Krohmann and R. Gerhards; An economic optimization model for management zone configuration 165; Carl R. Dillon, Tom Mueller and Scott Shearer; Optimal path nutrient application using variable rate technology 171; C.R. Dillon, S. Shearer, J. Fulton and M. Kanakasabai; Processing of yield map data for delincating yield zones 177; A. Dobermann, J.L. Ping, G.C. Simbahan and V.I. Adamchuk; Empirical methods to detect management zones with respect to yield 187; H. Domsch, T. Kaiser, K. Witzke and O. Zauer. Strategies for site-specific nitrogen fertilization with respect to long-term environmental demands 193; Th. Ebertseder, R. Gutser, U. Hege, R. Brandhuber and U. Schmidhalter; Improvement of the pendulum-meter for measuring crop biomass 199; D. Ehlert, S. Kraatz and H.-J. Horn; Quality assessment of agricultural positioning and communication systems 205; M. Ehrl, W. Stempfhuber, H. Auernhammer and M. Demmel; Information sources in precision agriculture in Denmark and the USA 211; S. Fountas, D.R. Ess, C.G. Sorensen, S.E. Hawkins, H.H. Pedersen, B.S. Blackmore and J. Lowenberg-Deboer; Exploring the spatial relations between soil properties and Electro-Magnetic Induction (EMI) and the implications for management 217; Z.L. Frogbrook, M.A. Oliver and K.E. Derricourt; Spatial dependence of soil samples and precision farming applications 223; W. Gangloff, R. Reich, D. Westfall and R. Khosla; Precision farming in weed control - system components and economic benefits 229; R. Gerhards and M. Sokefeld; Site-specific analysis of corn (Zea mays L.) nitrogen status using reflectance measurements 235; Simone Graeff and Wilhelm Claupein; Investigations on the use of airborne remote sensing for variable rate treatments of fungicides, growth regulators and N-fertilisation 241; G.J. Grenzdorffer; Individual plant care in cropping systems 247; H.W. Griepentrog, M. Norremark, H. Nielsen and B.S. Blackmore; Site specific calibration of a crop model by assimilation of remote sensing data: a tool for diagnosis and recommendation in precision agriculture 253; M. Guerif, D. Hollecker, N. Beaudoin,, C. Bruchou,, V. Houles, J.M. Machet,, B. Mary, S. Moulin and B. Nicoullaud; Acceptance of precision agriculture in Germany - results of a survey in 2001 259; Elisabeth Gumpertsberger and Carsten Jurgens; A prototype infotronic system for precision farming applications 265; L.S. Guo and Q. Zhang; Using aerial photography to detect weed patches for site-specific weed control - perspectives and limitations 271; A. Hausler and H. Nordmeyer. The value of additional data to locate potential management zones in commercial corn fields under center pivot irrigation 279; D.F. Heermann, K. Diker, G.W. Buchleiter and M.K. Brodahl; Mapping the spatial distribution of mineral fertilizer applications with digital image processing 285; O. Hensel; Pest management module for tree-specific orchard management GIS as part of the PRECISPRAY project 291; A. Hetzroni, M. Meron and V. Fatiev; Evaluation of site-specific management zones: grain yield and nitrogen use efficiency 297; A. Hornung, R. Khosla, R. Reich and D. G. Westfall; Co-kriging when the soil and ancillary data are not co-located 303; R. Kerry and M.A. Oliver; Site specific nitrogen fertilisation recommendations based on simulation 309; K.C. Kersebaum, K. Lorenz, H.I. Reuter, O. Wendroth, A. Giebel and J. Schwarz; GVIS - Ground-operated Visible/Near-Infrared Imaging Spectrometer 315; P. Klotz, H. Bach and W. Mauser; Standardization in data management to increase interoperability of spatial precision agriculture data 323; P. Korduan; The effects of spatial structure on accuracy of map and performance of interpolation methods 329; A. Kravchenko; Adoption of precision agriculture in Slovenia and precision viticulture on faculty vineyard Meranovo 335; M. Lakota, S. Vrsic, D. Stajnko and J. Valdhuber; Experimental and analytical methods for studying within-field variation of crop responses to inputs 341; R.M. Lark and H.C. Wheeler; An n-tier system architecture for distributed agronomic registration applications based on Open Source components 347; G. Lemoine and P. van der Voet; Site-specific N fertilization based on remote sensing - is it necessary to take yield variability into account? 353; A. Link and J. Jasper; Appropriate on-farm trial designs for precision farming 361; J. Lowenberg-DeBoer, D. Lambert and R. Bongiovanni. A farm scale approach to deciding land use options based on a compromise between economic and environmental criteria 367; G. Lyle and M.T.F Wong; Technology for variable rate precision drilling of onions 373; Seamus Maguire, Richard Earl, David F Smith, Paul Cripsey and Richard J. Godwin; Hay and forage measurement for mapping 379; Seamus Maguire, Richard J. Godwin, David F. Smith and Michael J. O'Dogherty; The spatial variability of irrigated corn yield in relation to field topography 385; J.R. Marques da Silva and C. Alexandre; A potential role for soil electrical conductivity mapping in the site-specific management of grassland 393; S. McCormick, J.S. Bailey, C. Jordan and A. Higgins; Developing a wireless LAN for high speed transfer of precision agriculture information 399; James M. McKinion, Johnie N. Jenkins, Jeffrey L. Willers and John J. Read; Remote mapping of crop water status to assess spatial variability of crop stress 405; M. Meron, J. Tsipris and D. Charitt; Tree shape and foliage volume guided precision orchard sprayer - the PRECISPRAY FP5 project 411; M. Meron, J. Van de Zande, R. Van Zuydam, B. Heijne, M. Shragai, J. Liberman, A. Hetzroni, P.G. Andersen and E. Shimborsky; Geostatistical analysis of soil properties and corn quality 417; Y. Miao, P.C. Robert and D.J. Mulla; Simultaneous identification of plant stresses and diseases in arable crops based on a proximal sensing system and Self-Organising Neural Networks 425; D. Moshou, C. Bravo, S. Wahlen, J. West, A. McCartney, J. De Baerdemaeker and H. Ramon; Derivation of dry bulk density maps using a soil compaction model 433; A.M. Mouazen and H. Ramon; Evaluation of fertiliser spreading strategies 439; A.T. Nieuwenhuizen, J.W. Hofstee, C. Lokhorst and J. Muller; An algorithm for automatic detection and elimination of defective yield data 445; P.O. Noack, T. Muhr and M. Demmel; Relative accuracy of different yield mapping systems installed on a single combine harvester 451; P.O. Noack, T. Muhr and M. Demmel; Experiences of site specific weed control in winter cereals 457; H. Nordmeyer, A. Zuk and A. Hausler. A method for high accuracy geo-referencing of data from field operations 463; M. Norremark, H.W. Griepentrog, H. Nielsen, B.S. Blackmore; Arguments for the improved political support of precision farming 469; E.-A. Nuppenau; Comparison of methods to extract correlations for canonical correlation analysis of cotton yields 475; S.J. Officer, R.J. Lascano, J. Booker and S. Maas; Exploring the spatial variation of take-all (Gaeumannomyces graminis var tritici) for site-specific management 481; M.A. Oliver, S.D. Heming, G. Gibson and N. Adams; Image processing performance assessment using crop weed competition models 487; Christine Onyango, John Marchant, Andrea Grundy, Kath Phelps and Richard Reader; Hyperspectral remote sensing - A tool for the derivation of plant nitrogen and its spatial variability within maize and wheat canopies 493; N. Oppelt and W. Mauser; Spatial variability of wine grape yield and quality in Chilean vineyards: economic and environmental impacts 499; R.A. Ortega, A. Esser and O. Santibanez; Spatial variability of the weed seed bank in an irrigated alluvial soil in Chile 507; R.A. Ortega, J. Fogliatti and M. Kogan; Development of an in-field controller for an agricultural bus-system based on open source program library lbs-lib 515; R. Ostermeier, H. Auernhammer and M. Demmel; Methods to define confidence intervals for kriged values: application to precision viticulture data 521; J.-N. Paoli, B. Tisseyre, O. Strauss and J.-M. Roger; Precision agriculture - economic aspects 527; J. Pawlak; Adoption of precision farming in Denmark 533; S.M. Pedersen, S. Fountas, S. Blackmore, J.L. Pedersen and H.H. Pedersen; A variable rate pivot irrigation control system 539; C. Perry, S. Pocknee and O. Hansen; Technical solutions for variable rate fertilisation 545; K. Persson, H. Skovsgaard and C. Weltzien; Use of airborne gamma radiometric data for soil property and crop biomass assessment 551; G. Pracilio, M.L. Adams and K.R.J. Smettem,. Error propagation in agricultural models 559; D. Purnomo, R.J. Corner and M.L. Adams; Site-specific land use as demonstrated by planning variable seeding rates 567; E. Reining, R. Roth and J. Kuhn; Optimisation of oblique-view remote measurement of crop N-uptake under changing irradiance conditions 573; S. Reusch; MOSAIC: Crop yield observation - can landform stratification improve our understanding of crop yield variability? 579; H.I. Reuter, O. Wendroth, K.C. Kersebaum and J. Schwarz; Improving the information obtained from yield maps 585; A. Ribeiro, M.C. Garcia-Alegre, L. Navarrete and C. Fernandez-Quintanilla; The critical challenge of learning precision agriculture new skills: Grower learning groups and on-farm trials 591; Pierre C. Robert and Christopher J. Iremonger; Data management for transborder-farming 597; M. Rothmund, M. Demmel and H. Auernhammer; Spatial variation of N fertilizer response in the southeastern USA Coastal Plain 603; E.J. Sadler, C.R. Camp, D.E. Evans and J.A. Millen; The potential for LASER-induced chlorophyll fluorescence measurements in wheat 609; J. Schachtl, F.-X. Maidl, G. Huber and E. Sticksel; Field-scale validation of a tractor based multispectral crop scanner to determine biomass and nitrogen uptake of winter wheat 615; U. Schmidhalter, S. Jungert, C. Bredemeier, R. Gutser, R. Manhart, B. Mistele and G. Geri; Characterisation of winter wheat using measurements of normalised difference vegetation index and crop height 621; I.M. Scotford and P.C.H. Miller; Monitoring the growth of winter wheat using measurements of normalised difference vegetation index (NDVI) and crop height 627; I.M. Scotford and P.C.H. Miller; Spatial detection of topsoil properties using hyperspectral sensing 633; T. Selige, L. Natscher and U. Schmidhalter; Site-specific crop response to temporal trend of soil variability determined by the real-time soil spectrophotometer 639; S. Shibusawa, S.W. I Made Anom, C. Hache, A. Sasao and S. Hirako. Digital tree mapping and its applications 645; E. Shimborsky; Correcting the effects of field of view and cloud in spectral measurements of crops in the field 651; Michael D. Steven; Automatic operation planning for GPS-guided machinery 657; A. Stoll; A low cost platform for obtaining remote sensed imagery 665; T. Stombaugh, A. Simpson, J. Jacobs and T. Mueller; Development of a commercial vision guided inter-row hoe: achievements, problems and future directions 671; Nick Tillett, Tony Hague, Philip Garford and Peter Watts; Application of multivariate adaptive regression splines (MARS) in precision agriculture 677; K.M. Turpin, D.R. Lapen, E.G. Gregorich, G.C. Topp, N.B. McLaughlin, W.E. Curnoe and M.J.L. Robin; In-field assessment of commercial cotton yield monitors 683; G. Vellidis, N. Wells, C. Perry, C. Kvien and G. Rains; Development of a sensor for continuous soil resistance measurement 689; R. Verschoore, J.G. Pieters, T. Seps, Y. Spriet and J. Vangeyte; Assessment of two reflectance techniques for the quantification of the within-field spatial variability of soil organic carbon 697; R. Viscarra Rossel, C. Walter and Y. Fouad; Practical practise of precision agriculture and priorities to promote technological innovation in P.R. China 705; Maohua Wang; Development of decision rules for site-specific N fertilization by the application of data mining techniques 711; G. Weigert and P. Wagner; GPS receiver accuracy test - dynamic and static for best comparison of results 717; Cornelia Weltzien, Patrick Noack and Krister Persson; MOSAIC: Crop yield prediction - compiling several years' soil and remote sensing information 723; O. Wendroth, K.C. Kersebaum, H.I. Reuter, A. Giebel, N. Wypler, M. Heisig, J. Schwarz and D.R. Nielsen; On-farm field experiments for precision agriculture 731; B.M. Whelan, A.B. McBratney and A. Stein. Pulse radar systems for yield measurements in forage harvesters 739; K. Wild, S. Ruhland and S. Haedicke; Model for land use decisions based on analysis of yield and soil property maps and remote sensing 745; M.T.F. Wong and G. Lyle; Hyperspectral image feature extraction and classification for soil nutrient mapping 751; Haibo Yao, Lei Tian and Amy Kaleita; Selecting the optimum locations for soil investigations 759; Hilde Monika Zimmermann, Matthias Plochl, Christoph Luckhaus and Horst Domsch; Ecological effects of site-specific weed control: Weed distribution and occurrence of Collembola in the soil 765; A. Zuk, H. Nordmeyer and J. Filser; Authors index 773; Keyword index 779.
