Front Matter....Pages 1-21
Front Matter....Pages 23-23
Comparing the DUALEM and VΓRIS sensors for mapping soil properties....Pages 25-32
Three-layered soil maps based on sensor measurements....Pages 33-39
Real time soil sensing for determination of tropical soils pH....Pages 41-48
Soil compaction sensor for site-specific tillage: design and assessment....Pages 49-56
Microphone sensor for grain yield monitoring....Pages 57-62
Improving the determination of plant characteristics by fusion of four different sensors....Pages 63-69
Three-dimensional sensor for dynamic characterization of soil microrelief....Pages 71-78
Crop sensor readings in winter wheat as affected by nitrogen and water supply....Pages 79-86
Rapid estimation of rice canopy LAI using multi-source proximal sensors....Pages 87-93
Estimating rice nitrogen status with the Crop Circle multispectral active canopy sensor....Pages 95-101
Comparison of crop canopy sensors in sugarcane....Pages 103-110
Field comparison of ultrasonic and canopy reflectance sensors used to estimate biomass and N-uptake in sugarcane....Pages 111-117
From theory to practice: using canopy reflectance to determine sidedress N rate in potatoes....Pages 119-127
The use of a laser scanner for measuring crop properties in three different crops in Central Greece....Pages 129-136
The problem is not N deficiency: Active canopy sensors and chlorophyll meters detect P stress in corn and soybean....Pages 137-144
Development of sensor based detection of crop nitrogen status for utilization in variable rate nitrogen fertilization....Pages 145-150
Portability of leaf chlorophyll empirical estimators obtained at Sentinel-2 spectral resolution....Pages 151-157
Front Matter....Pages 159-159
Enhancement of micro Unmanned Aerial Vehicles for agricultural aerial sensor systems....Pages 161-167
Fieldcopter: unmanned aerial systems for crop monitoring services....Pages 169-175
Aerial thermography for crop stress evaluation β a look into the state of the technology....Pages 177-183
Front Matter....Pages 159-159
Comparison of methods for field scale mapping of plant water status using aerial thermal imagery....Pages 185-192
Imagery from unmanned aerial vehicles for early site specific weed management....Pages 193-199
Mapping of vine vigor by UAV and anthocyanin content by a non-destructive fluorescence technique....Pages 201-208
Predicting optimal soybean harvesting dates with satellite data....Pages 209-215
Monitoring time-series crop leaf area index from higher resolution remotely sensed data....Pages 217-223
Water status detection in California table grapes: from leaf to airborne....Pages 225-231
Front Matter....Pages 233-233
Long-term effect of super phosphate fertilizer on accumulation of soil phosphorus on a pasture....Pages 235-242
Effect of sampling patterns and interpolation methods on prediction quality of soil variability mapping....Pages 243-250
Spatial variability of drip irrigation in small vine fields of south of France....Pages 251-257
A simple method for filtering spatial data....Pages 259-266
Spatial variability detection of crop height in a single field by terrestrial laser scanning....Pages 267-274
Strip-crop rotations: yield spatial structure for spatially coincident and temporally subsequent corn and soybean production....Pages 275-282
Spatial variability of seed depth placement of maize under no tillage in Alentejo, Portugal....Pages 283-290
Stochastic simulation of maize productivity: spatial and temporal uncertainty....Pages 291-297
Spatial and temporal variability of soybean and maize yield after 27 years of no-tillage in SΓ£o Paulo, Brazil....Pages 299-304
Investigating geostatistical methods to model within-field yield variability of cranberries....Pages 305-311
Within-field zoning using a region growing algorithm guided by geostatistical analysis....Pages 313-319
Understanding the effects of site-specific fertilization on yield and protein content in durum wheat....Pages 321-327
Within-field variation in deoxynivalenol (DON) contents in oats....Pages 329-334
Front Matter....Pages 335-335
On-line measurement of animal and bio slurry quality variations with near infrared spectroscopy....Pages 337-342
Front Matter....Pages 335-335
Automatic selection of vertical spray pattern in orchard sprayer....Pages 343-348
Management information system for spatial analysis of tractor- implement draft forces....Pages 349-356
Using RTK-based GPS guidance for planting and inverting peanuts....Pages 357-364
Hydraulic robot arm controlled by visual servoing....Pages 365-371
Path planning to minimise distances and recharging instances for a small fleet of vehicles in an arable field....Pages 373-380
Front Matter....Pages 381-381
Can fluorescence based sensing detect nitrogen variability at early growth stages of maize?....Pages 383-388
Sub-paddock scale spatial variability between the pasture and cropping phases of mixed farming systems in Australia....Pages 389-394
The effect of long-term phosphorus and potassium precision fertilization....Pages 395-401
Theoretical basis for sensor-based in-season nitrogen management....Pages 403-410
A segmentation approach to delineate zones for differential nitrogen interventions....Pages 411-418
Practicable site-specific estimation of nitrate leaching risk from agricultural cropland....Pages 419-425
Yield variability linked to climate uncertainty and nitrogen fertilisation....Pages 427-434
Variable rate application of side-dress nitrogen on cotton in Georgia, USA....Pages 435-442
Improving yield advisory models for precision agriculture with special regards to soil compaction in maize production....Pages 443-450
A model-driven decision support system for vineyard water status management: a time-dependent sensitivity analysis....Pages 451-457
Prediction of spatial variability of water status in a rain fed vineyard in Spain....Pages 459-465
A field information collecting system based on a wireless sensor network....Pages 467-474
Site-specific land management of cereal crops based on management zone delineation by proximal soil sensing....Pages 475-482
A comparison of bivariate classification and segmentation approaches to delineating and interpreting grain yield-protein management units....Pages 483-490
Using profile soil electrical conductivity survey data to predict wheat establishment rates in the United Kingdom....Pages 491-497
Front Matter....Pages 381-381
Geostatistical methods as auxiliary tools in field plot experimentation....Pages 499-506
Prediction of non-linear time-variant dynamic crop model using bayesian methods....Pages 507-513
Front Matter....Pages 515-515
Gall mite inspection on dormant black currant buds using machine vision....Pages 517-524
Assembly of a model for grapevine powdery mildew in a decision support system and search for evaluation criteria....Pages 525-531
Advances in pesticide dose adjustment in tree crops....Pages 533-539
Weed-crop discrimination using LiDAR measurements....Pages 541-545
Simulation of the effects of weed decision threshold, detection and treatment resolution on the errors in spraying decisions and on herbicide savings....Pages 547-553
Crop and weed species recognition based on hyperspectral sensing and active learning....Pages 555-561
Effect of historical agronomic practices and proximity of infected plots on spatial patterns of broomrape in tomato crops....Pages 563-568
Spray nozzle characterization using high speed imaging techniques....Pages 569-576
Site-specific disease management: a preliminary case with Orange Spotting in oil palm....Pages 577-584
Mapping redheaded cockchafer infestations in pastures β are PA tools up to the job?....Pages 585-592
Risk assessment of grapevine leafroll disease for developing future site-specific disease spread control tactics and strategies....Pages 593-599
Front Matter....Pages 601-601
Electronic characterization of the phenological stages of grapevine using a LIDAR sensor....Pages 603-609
Grape quality assessment by airborne remote sensing over three years....Pages 611-615
Multispectral imagery acquired from a UAV to assess the spatial variability of a Tempranillo vineyard....Pages 617-624
A simplified index to assess the opportunity for selective wine grape harvesting from vigour maps....Pages 625-632
Using laser scanner to map pruning wood in vineyards....Pages 633-639
Agronomic significance of the zones defined within vineyards early in the season using NDVI and fruit load information....Pages 641-647
Grape physiology, composition and sensory characteristics in a selective harvest winegrape vineyard....Pages 649-657
Front Matter....Pages 601-601
Temporal evolution of within-season vineyard canopy response from a proximal sensing system....Pages 659-665
Automated determination of plum tree canopy cover with two different measurement techniques....Pages 667-673
Application of variable rate fertilizer in a commercial apple orchard....Pages 675-681
Obtaining yield maps in orchards by tracking machine behavior....Pages 683-690
Determination of field capacity and yield mapping in olive harvesting using remote data acquisition....Pages 691-696
Front Matter....Pages 697-697
Scheduling vineyard irrigation based on mapping leaf water potential from airborne thermal imagery....Pages 699-704
Assessment of drip irrigation sub-units using airborne thermal imagery acquired with an Unmanned Aerial Vehicle (UAV)....Pages 705-711
A soil moisture sensor-based variable rate irrigation scheduling system....Pages 713-720
The potential of CWSI based on thermal imagery for in-season irrigation management in potato fields....Pages 721-727
Variable rate irrigation and nitrogen fertilization of maize across landscape positions....Pages 729-736
Response of alfalfa to precision fertigation in Saudi Arabia....Pages 737-743
Fusion of data from multiple soil sensors for the delineation of water holding capacity zones....Pages 745-751
Front Matter....Pages 753-753
Precision agriculture and agro-environmental policy....Pages 755-760
Heuristic optimization for variable rate nitrogen and seeding decisions....Pages 761-768
Dispelling misperceptions regarding variable rate application....Pages 769-776
Precision analysis of the effect of ephemeral gully erosion on vine vigour using NDVI images....Pages 777-783
A survey of future farm automation β a descriptive analysis of survey responses....Pages 785-792
Service engineering in the domain of precision farming....Pages 793-799
A survey of wireless sensor technologies applied to precision agriculture....Pages 801-808
Standardisation in precision agriculture through INSPIRE....Pages 809-814
Back Matter....Pages 815-823