Results 211 to 220 of about 8,196 (261)
Some of the next articles are maybe not open access.
Decision Rules for Site-Specific Weed Management
2010For precision weed management decision rules are needed that take into account spatial and temporal variability of weed populations and weed-crop interactions. The following chapter describes different decision rules for online and offline site-specific weed management.
Christoph Gutjahr, Roland Gerhards
openaire +1 more source
Remote Sensing and Site-Specific Weed Management
Frontiers in Ecology and the Environment, 2005Weeds typically occur in patches rather than uniformly across a field; however, conventional management practices rely on whole-field management. Site-specific weed management (SSWM), applying control measures only where weeds are located at densities greater than those that cause economic losses, has tremendous potential for economic and environmental
openaire +1 more source
Economics of site-specific weed management
Weed Science, 2005Abstract Nascent research on the profitability of site-specific weed management has focused on reduced herbicide use, ignoring significant information costs for scouting, making treatment maps, and patch herbicide application. Including these information costs results in few, if any, studies, fully covering added costs with herbicide savings. Real-time,
openaire +1 more source
RETRACTED: Advanced techniques for Weed and crop identification for site specific Weed management
Biosystems Engineering, 2011Weed management plays a major role in the production and economic benefits derived by agricultural industry worldwide. The monitoring of weed pressure, economic threshold, yield loss and environmental impact is critical for sustainable agriculture. Currently research is being carried out relating to weed mapping at field scale and the development of ...
Karan Singh +2 more
openaire +1 more source
Towards machine vision based site-specific weed management in cereals
Computers and Electronics in Agriculture, 2012Arable weeds are generally distributed in patches, while herbicides are applied uniformly. Herbicides can be saved if only the patches are sprayed, i.e. patch spraying (PS). Bottlenecks for cost-effective PS are weed monitoring technology and valid technology-based decision rules for PS (thresholds).
T.W. Berge +3 more
openaire +1 more source
DEVELOPMENT OF A PRECISION SPRAYER FOR SITE-SPECIFIC WEED MANAGEMENT
Transactions of the ASAE, 1999A machine-vision-system-guided precision sprayer was developed and tested. The long-term objectives of this project were to develop new technologies to estimate weed density and size in real time, realize site-specific weed control, and effectively reduce herbicide application amounts for corn and soybean fields. This research integrated a real-time
null L. Tian +2 more
openaire +1 more source
A Bioeconomic Analysis of Site‐Specific Management for Weed Control
Applied Economic Perspectives and Policy, 1996have been implicated as potential sources of ground and surface water pollution and attendant health hazards (Nielsen and Lee; Hoar et al.; United States Environmental Protection Agency). These adverse effects have led to imposition of regulatory actions ranging from herbicide restrictions to use quotas.
Caleb A. Oriade +3 more
openaire +1 more source
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.
openaire +1 more source
Evaluation of site-specific weed management using a direct-injection sprayer
Weed Science, 2001Abstract Targeting weed patches for site-specific herbicide applications potentially represents cost savings for operators, reduction in environmental herbicide effects, and increased efficiency of weed control. An experiment was initiated in a no-till corn field in Ontario, Canada, in 1998 and was continued in rotation with no-till soybeans in 1999 ...
Heather J. Goudy +3 more
openaire +1 more source
Weed Decision Threshold as a Key Factor for Herbicide Reductions in Site-Specific Weed Management
Weed Technology, 2016The objective of this research was to explore the influence that weed decision threshold (DT; expressed as plants m−2), weed spatial distribution patterns, and spatial resolution of sampling have on potential reduction in herbicide use under site-specific weed management.
Carolina San Martín +4 more
openaire +1 more source