Results 121 to 130 of about 5,083 (148)
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Annual weed distributions can be mapped with kriging
Weed Research, 1996SummaryThe authenticity of weed distribution maps prepared by the geostatistical estimation method, kriging, was investigated. We concentrated on the total number of weed plants and the dominant weed genus Veronica spp. in a 2.1‐ha field of winter wheat. Different sampling distances were evaluated.
Heisel, T. +2 more
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Weed detection for site‐specific weed management: mapping and real‐time approaches
Weed Research, 2010López‐GranadosF (2011). Weed detection for site‐specific weed management: mapping and real‐time approaches.Weed Research 51, 1–11.SummaryThis work describes the current status of remote and proximal (on‐ground) weed detection systems for site‐specific weed management and discusses the limitations and opportunities of these technologies.
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Efficiency and Accuracy of Wildland Weed Mapping Methods
Invasive Plant Science and Management, 2011AbstractLand managers must set weed management priorities if limited resources are to be utilized effectively. Weed surveys and inventories assist land managers in this process by providing information regarding the identity, location, and relative abundance of weeds on their land.
Stephanie D. Christensen +3 more
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Weed Mapping—A Way to Reduce Herbicide Doses
Potato Research, 2010Six-year field trials performed during 2004–2009 focused on the study of weed distribution on selected plots cropped with potato. In the period of potato emergence, coordinates were determined for each point in a grid of 20 × 20 m using global positioning system (GPS) kit GPSMap 276 and values of distribution of all present weed species (g green mass ...
J. Čepl, P. Kasal
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Software for Mapping and Analyzing Weed Distributions: gWeedMap
Agronomy Journal, 1998AbstractThe spatial pattern of weeds in a field is often patchy. This pattern can be visualized with maps created by geographical information system (GIS) software. However, this software is often difficult to use and/or expensive, especially if not all of the GIS functionality is needed.
David W. Krueger +2 more
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Weed mapping in cotton using ground-based sensors and GIS
Environmental Monitoring and Assessment, 2018Site-specific weed management presupposes the careful monitoring and mapping of weed infestation areas. Cut-edge sensor technologies coupled with geographical information systems (GIS) provide the means for reliable decision-making concerning weed management even in sub-field level.
Antonis V. Papadopoulos +4 more
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Guidelines for Mapping Assessments of Agricultural Weed Problems
PANS, 1978Abstract The need for mapping weed infestations and monitoring the spread of weeds is discussed. Methods suitable for large scale regional surveys and smaller scale mapping are reviewed with emphasis on pasture, rangeland and grassland. Visual estimates of cover in discrete classes using farms or standard map grids as units are recommended for large ...
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Lightweight Computer Vision System for Automated Weed Mapping
2022 IEEE 12th Annual Computing and Communication Workshop and Conference (CCWC), 2022Saad Abouzahir +2 more
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