Results 221 to 230 of about 5,783 (249)
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Software for Mapping and Analyzing Weed Distributions: gWeedMap

Agronomy Journal, 1998
AbstractThe 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
openaire   +1 more source

Weed Mapping—A Way to Reduce Herbicide Doses

Potato Research, 2010
Six-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
openaire   +1 more source

Field Coverage for Weed Mapping: Toward Experiments with a UAV Swarm

2019
Precision agriculture represents a very promising domain for swarm robotics, as it deals with expansive fields and tasks that can be parallelised and executed with a collaborative approach. Weed monitoring and mapping is one such problem, and solutions have been proposed that exploit swarms of unmanned aerial vehicles (UAVs).
Albani D.   +4 more
openaire   +2 more sources

Weed detection for site‐specific weed management: mapping and real‐time approaches

Weed Research, 2010
López‐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.
openaire   +1 more source

Evaluation of hierarchical self-organising maps for weed mapping using UAS multispectral imagery

Computers and Electronics in Agriculture, 2017
Abstract Remote sensing has been used for species discrimination and for operational weed mapping. In the study presented here, the detection and mapping of Silybum marianum using a hierarchical self-organising map is reported. A multispectral camera (green-red-NIR) mounted on a fixed wing Unmanned Aircraft System (UAS) was used for the acquisition
Xanthoula Eirini Pantazi   +5 more
openaire   +1 more source

Weed Seedbank Evaluating Method to Generate Spatial Distribution Maps

Journal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes, 2005
The objective of this work was to develop a fast and practical method of weed seedbank evaluation to generate spatially distributed maps for use in site-specific weed management. Soil cores were collected at 0.20 m depth, air-dried, and then submitted to seedling growth in greenhouse.
Luciano Shozo, Shiratsuchi   +2 more
openaire   +2 more sources

Guidelines for Mapping Assessments of Agricultural Weed Problems

PANS, 1978
Abstract 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 ...
openaire   +1 more source

Lightweight Computer Vision System for Automated Weed Mapping

2022 IEEE 12th Annual Computing and Communication Workshop and Conference (CCWC), 2022
Saad Abouzahir   +2 more
openaire   +2 more sources

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