Benchmark study on glyphosate-resistant cropping systems in the United States. Part 1: Introduction to 2006-2008

2011 ◽  
Vol 67 (7) ◽  
pp. 741-746 ◽  
Author(s):  
David R Shaw ◽  
Micheal DK Owen ◽  
Philip M Dixon ◽  
Stephen C Weller ◽  
Bryan G Young ◽  
...  
Keyword(s):  
United States ◽  
Cropping Systems ◽  
The United States ◽  
Benchmark Study

Benchmark study on glyphosate-resistant cropping systems in the United States. Part 5: Effects of glyphosate-based weed management programs on farm-level profitability

2011 ◽  
Vol 67 (7) ◽  
pp. 781-784 ◽  
Author(s):  
Jason W Weirich ◽  
David R Shaw ◽  
Micheal DK Owen ◽  
Philip M Dixon ◽  
Stephen C Weller ◽  
...  
Keyword(s):  
United States ◽  
Weed Management ◽  
Cropping Systems ◽  
The United States ◽  
Farm Level ◽  
Benchmark Study ◽  
On Farm

Benchmark study on glyphosate-resistant cropping systems in the United States. Part 4: Weed management practices and effects on weed populations and soil seedbanks

2011 ◽  
Vol 67 (7) ◽  
pp. 771-780 ◽  
Author(s):  
Robert G Wilson ◽  
Bryan G Young ◽  
Joseph L Matthews ◽  
Stephen C Weller ◽  
William G Johnson ◽  
...  
Keyword(s):  
United States ◽  
Weed Management ◽  
Management Practices ◽  
Cropping Systems ◽  
The United States ◽  
Benchmark Study

MAI Benchmark Campaign of International Software for Reactor Pressure Vessel Integrity Assessment

2014 ◽  
Author(s):  
Emilie Dautreme ◽  
Emmanuel Remy ◽  
Roman Sueur ◽  
Jean-Philippe Fontes ◽  
Karine Aubert ◽  
...  
Keyword(s):  
United States ◽  
Pressure Vessel ◽  
Software Tool ◽  
The United States ◽  
Pressure Vessels ◽  
Reactor Pressure Vessel ◽  
Pressurized Water ◽  
Integrity Assessment ◽  
Benchmark Study ◽  
Reactor Pressure

Nuclear Reactor Pressure Vessel (RPV) integrity is a major issue concerning plant safety and this component is one of the few within a Pressurized Water Reactor (PWR) whose replacement is not considered as feasible. To ensure that adequate margins against failure are maintained throughout the vessel service life, research engineers have developed and applied computational tools to study and assess the probability of pressure vessel failure during operating and postulated loads. The Materials Ageing Institute (MAI) sponsored a benchmark study to compare the results from software developed in France, Japan and the United States to compute the probability of flaw initiation in reactor pressure vessels. This benchmark study was performed to assess the similarities and differences in the software and to identify the sources of any differences that were found. Participants in this work included researchers from EDF in France, CRIEPI in Japan and EPRI in the United States, with each organization using the probabilistic software tool that had been developed in their country. An incremental approach, beginning with deterministic comparisons and ending by assessing Conditional Probability of crack Initiation (CPI), provided confirmation of the good agreement between the results obtained from the software used in this benchmark study. This conclusion strengthens the confidence in these probabilistic fracture mechanics tools and improves understanding of the fundamental computational procedures and algorithms.

Benchmark study on glyphosate-resistant crop systems in the United States. Economics of herbicide resistance management practices in a 5 year field-scale study

2014 ◽  
Vol 70 (12) ◽  
pp. 1924-1929 ◽  
Author(s):  
C Blake Edwards ◽  
David L Jordan ◽  
Michael DK Owen ◽  
Philip M Dixon ◽  
Bryan G Young ◽  
...  
Keyword(s):  
United States ◽  
Herbicide Resistance ◽  
Management Practices ◽  
Resistance Management ◽  
The United States ◽  
Field Scale ◽  
Benchmark Study

scholarly journals Carrots and Sticks: Incentives and Regulations for Herbicide Resistance Management and Changing Behavior

Weed Science ◽  
2016 ◽  
Vol 64 (SP1) ◽  
pp. 627-640 ◽  
Author(s):  
Michael Barrett ◽  
Michael Barrett ◽  
John Soteres ◽  
David Shaw
Keyword(s):  
United States ◽  
Herbicide Resistance ◽  
Weed Management ◽  
Cropping Systems ◽  
Wide Spectrum ◽  
Resistance Management ◽  
Herbicide Tolerance ◽  
The United States ◽  
Weed Species ◽  
Agricultural Community

Although the problem of herbicide resistance is not new, the widespread evolution of glyphosate resistance in weed species such as Palmer amaranth (Amaranthus palmeriS. Wats.), common waterhemp (Amaranthus rudisSauer), and kochia [Kochia scoparia(L.) Schrad.] raised awareness throughout the agricultural community of herbicide resistance as a problem. Glyphosate-resistant weeds resulted in the loss of a simple, single herbicide option to control a wide spectrum of weeds that gave efficacious and economical weed management in corn (Zea maysL.), soybean [Glycine max(L.) Merr.], and cotton (Gossypium hirsutumL.) crops engineered for tolerance to this herbicide and planted over widespread areas of the South and Midwest of the United States. Beyond these crops, glyphosate is used for vegetation management in other cropping systems and in noncrop areas across the United States, and resistance to this herbicide threatens its continued utility in all of these situations. This, combined with the development of multiple herbicide-resistant weeds and the lack of commercialization of herbicides with new mechanisms of action over the past years (Duke 2012), caused the weed science community to realize that stewardship of existing herbicide resources, extending their useful life as long as possible, is imperative. Further, while additional herbicide tolerance traits are being incorporated into crops, weed management in these crops will still be based upon using existing, old, herbicide chemistries.

Maturity in Innovation Network Management

2012 ◽  
pp. 203-229
Author(s):  
Caspar Van Rijnbach ◽  
Gustavo de Boer Endo ◽  
Suzana Monteiro Leonardi
Keyword(s):  
United States ◽  
Network Management ◽  
United States Of America ◽  
The United States ◽  
Innovation Networks ◽  
Innovation Network ◽  
Maturity Model ◽  
Benchmark Study ◽  
World Class ◽  
Four Levels

Companies are focusing increasingly on the creation and maintenance of external networks for innovation. The purpose of this chapter is to introduce the reader to the concept of network management and demonstrate the principal attributes that impact the formation and optimization of innovation networks, based on the network´s objectives, the combination of the characteristics of the network’s participants as well as the network’s organizational format to attract and maintain the partnership. To reach this purpose, we present the results of a benchmark study undertaken in Brazil, the United States of America and Europe between March and June 2009. In this study, we interviewed executives at 24 leading companies known as innovators in their industry. Through the results we were able to identify a maturity model consisting of four levels for innovation network management: initiators, explorers, established and world class.

Benchmark Study: IV. Survey of Grower Practices for Managing Glyphosate-Resistant Weed Populations

2012 ◽  
Vol 26 (3) ◽  
pp. 543-548 ◽  
Author(s):  
Joby M. Prince ◽  
David R. Shaw ◽  
Wade A. Givens ◽  
Micheal D. K. Owen ◽  
Stephen C. Weller ◽  
...  
Keyword(s):  
United States ◽  
Weed Management ◽  
Management Practices ◽  
Relative Effectiveness ◽  
The United States ◽  
Effective Management ◽  
Benchmark Study ◽  
Effectiveness Rating ◽  
Grower Survey

In 2010, a grower survey was administered to 1,299 growers in 22 states to determine changes in weed management in the United States from 2006 to 2009. The majority of growers had not changed weed management practices in the previous 3 yr; however, 75% reported using weed management practices targeted at glyphosate-resistant (GR) weeds. Growers were asked to rate their efforts at controlling GR weeds and rate the effectiveness of various practices for controlling/preventing GR weeds regardless of whether they were personally using them. Using the herbicide labeled rate, scouting fields, and rotating crops were among the practices considered by growers as most effective in managing GR weeds. Sixty-seven percent of growers reported effective management of GR weeds. Between the 2005 and 2010 Benchmark surveys, the frequency of growers using specific actions to manage GR weeds increased markedly. Although the relative effectiveness of practices, as perceived by growers, remained the same, the effectiveness rating of tillage and the use of residual and POST herbicides increased.

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