Weed management in arid and semi-arid climate & Weed ...

European Weed Research Society
2 nd CIRCULAR
JOINT WORKSHOP OF THE EWRS WORKING GROUPS:
Weed management in arid and semi-arid climate
and
Weed management systems in vegetables
Dear Colleague,
4-8 September 2011
Huesca, Spain
We are pleased to give you some general information on the joint workshop of our working
groups. Please forward this circular to any interested colleagues in your
institution/country. Information on the workshop will also appear regularly on the working
group’s web site: http://www.ewrs.org/weed_management_systems_in_vegetables.asp or at
http://www.ewrs.org/arid/default.asp
The aim of the workshop is to create a forum where people involved in research in weed
management in vegetables and in arid and semi-arid agro-ecosystems weed control can come
together and exchange results, experiences, and information and establish new contacts and
networks.
Please do not forget to register and submit your provisional abstract online at
http://www.ewrs.org/ewrslgin/login.asp.
The Scientific Programme will be in the 3 rd circular (mid June 2011).
We look forward to receiving your contributions and hope you will be able to join us in Huesca!
Local organisers: Carlos Zaragoza, Joaquin Aibar, Alicia Cirujeda & Sonsoles Fernández-Cavada
(carza@aragon.es; jaibar@unizar.es )
Scientific organizers and Chairmen of the Working groups: Baruch Rubin (rubin@agri.huji.ac.il)
and Euro Pannacci (pannacci@unipg.it)

JOINT WORKSHOP OF THE EWRS WORKING GROUPS:
Weed management in arid and semi-arid
climate
&
Weed management systems in vegetables
Huesca, 4-8 September 2011
Venue
The Workshop will take place at the Escuela Politécnica Superior de Huesca, located 7 km from the
centre of Huesca. Huesca is an ancient town of 50.000 inhabitants with very interesting
architecture, especially from its Romanesque period. It is one of the three capitals of the Aragón
region. The city lays on the road to France about 75 km from Zaragoza. It is serviced by few
airlines but frequent trains and buses are available from both Madrid and Barcelona. Huesca is
located next to the Pyrenees mountains, which defines the landscape of the Hoya (valley) of
Huesca, an important agricultural region which includes dryland and irrigated crops. This is an
area of large contrasts between the rocky mountains and the arid surroundings with scarce
vegetation. The location of the venue offers an excellent opportunity for you to spend some extra
days sightseeing in the Pyrenees or visiting the two major cities of Spain, Barcelona and Madrid,
with all their interesting attractions (http://www.huescaturismo.com).
Several institutions are co-operating with the EPS of Huesca: Centro de Investigación y Tecnología
Agroalimentaria (CITA) (a regional Research Centre in Food and Agriculture), a delegation of the
Consejo Superior de Investigaciones Científicas (CSIC) (the main Research Institution of Spain),
the Plant Protection Service from the Autonomous Government and different laboratories of the
Agriculture Department of Aragón.
Accommodations and meals
Participants in the workshop will have lunch at the EPS restaurant. Accommodations will be in
Huesca, and a list of recommended hotels in the city centre is provided below. The central location
of the hotels will facilitate meeting after the official programme. We hope that informal discussions
will continue while enjoying some ‘tapas’ in many of the bars of the old city.
Hotels between 65 and 70 euro / night including breakfast
Abba (the closest to the bus station)
http://www.abbahuescahotel.com/
Hotel Pedro I de Aragón
http://www.hotelpedroidearagon.com/
Hotel Posada de la Luna
http://www.posadadelaluna.com/
Hotels between 80-90 euros / night including breakfast
http://www.hotelsanchoabarca.com/
Student Residence
Colegio Mayor Ramon Acin
Double rooms with shared bath and without breakfast: 18.08 EUR / night
Book here as soon as possible, contact: Joaquin Aibar ( jaibar@unizar.es)
2

How to reach Huesca:
Airports:
• Airport "Huesca Pirineos", is located just 10 km from Huesca, but with very few flights.
• At about 45 minutes (driving) from our city is the airport of Zaragoza with more flights.
• Barajas (Madrid) and El Prat (Barcelona) international airports with abundant rail networks.
By road:
From Zaragoza to Huesca: take the A-23 free motorway.
From Madrid: take the A-2 free motorway direction Zaragoza- Barcelona and continue with the A-
23 to Huesca.
From Barcelona: take the toll motorway to Zaragoza and continue on the A-23 to Huesca.
3

By bus:
From Delicias Intermodal Station in Zaragoza:
• Regular bus services from main Spanish cities: Zaragoza (every half an hour), Barcelona, Lérida
(Lleida) and Pamplona.
• Time schedule and prices for Zaragoza -Huesca trip: http://www.alosa.es/rutas-horarios-precios/
Attention! Check the summer schedule.
By train
From Delicias Intermodal Station (same station of the buses):
• Regular services of RENFE (Spanish Railways), with a daily shuttle line (AVE) from Zaragoza to
Huesca (44 minutes). There are also many regular trains from Zaragoza to Huesca (about 1
hour). Currently, there are 7 trains between 6:59 and 20:44. Attention! Check the summer
schedule.
• The AVE trains from Madrid to Zaragoza (1 hour and a half) and from Barcelona to Zaragoza (1
hr average) are very frequent (11/ day). There is only a direct train Madrid-Huesca at 19:05
(takes about 2 hr). AVE trains are fast but rather expensive.
• Train bookings (also in English): http://www.renfe.com/viajeros/index.html
We recommend:
Book directly in Hotel ABBA Huesca (best quality/price ratio). If you arrive at the Madrid airport:
try to get the AVE train directly to Huesca. If you miss it, then take the AVE train to Zaragoza and
another train or bus to Huesca. If you arrive at the Barcelona airport: get the AVE train to
Zaragoza and then continue by train or bus to Huesca.
Another possibility is to rent a car in the Zaragoza station and drive to Huesca. This is expensive
but faster. It can be cheaper if you share the car with other colleagues.
Meeting fees:
The fees include welcome party, lunches during the meeting days and farewell informal dinner.
Before June 30 : EWRS members and students: 150 €. Non EWRS members: 210 € (includes the
equivalent of the EWRS membership fee for one year i.e. 60 € in 2011). After June 30: EWRS
members: 180 €. Non EWRS members: 235 €
Please send the fee with the name: "Meeting EWRS Huesca", including clearly your name to this
bank account number: IBAN: ES37 2086 0047 3533 0012 0238 (BIC: CECAESMM086)
Provisional programme (to be adjusted according to the submitted contributions etc…)
Sunday 4th September 2011
Arrival, sightseeing, etc.
Afternoon and Evening: Registration
Welcome drink and dinner on your own
Monday 5th September 2011
Morning: Registration
Morning and afternoon: Scientific programme
Evening: Dinner on your own
Tuesday 6th September 2011
Morning: Registration
Morning and afternoon: Scientific programme
Evening: Dinner on your own
4

Wednesday 7th September 2011
Morning: Scientific programme
Afternoon: Scientific programme
Evening: Farewell dinner.
Thursday 8th September 2011
Morning: Plans for the future and concluding remarks (workshop ends at approx. 13:00)
Scientific programme
As usual, the workshop aims to be informal and to stimulate as much discussion as possible
among participants. As in past workshops, we will combine plenary scientific sessions with oral and
poster presentations, concurrent round-table discussions, and a final plenary session (reports on
round-table discussions, directions for the future, etc.). Session chairs will briefly introduce each
poster associated with the theme of their oral session presentations. We would also like to
organise some keynote themes presented by invited speakers. This will be followed by an
extensive discussion lasting 30-45 min. You are welcome to suggest relevant speakers and
themes.
Below is a tentative list of topics:
Weed biology, ecology and modelling
Herbicide behaviour in soils
Invasive weeds: control and quarantine regulations
Weed management in organic farming systems
Preventive and integrated weed control (crop rotation, tillage system, false seedbed technique,
seeding rate, fertilisation, etc.)
Irrigation and weed control
Weed management in minor crops and special situations
Cover crops, mulches and intercropping
New developments and technical innovations
Weed population dynamics in physical and cultural weed management systems
Parasitic weeds and herbicide resistance
Environmental impact of weed management
Research methodology in weed management
Weed control and UE agro- environmental schemes
Exchange and transfer of information, and international cooperation (glossary, use of Internet
resources, etc.)
...
Abstracts and Proceedings
A booklet with one-page abstracts of all scientific contributions will be available at the
workshop.
The abstracts and optional full papers of all scientific contributions, both oral and poster
papers, will appear in the Proceedings, which will be published on each working group’s web
page after the workshop.
5

Important dates and deadlines (please take note):
31 st May 2011
Deadline for pre-registration and provisional abstracts submission (online only,
through the web site: http://www.ewrs.org/ewrslgin/login.asp)
15 th June 2011
Third Circular containing:
Final Scientific Programme
Provisional list of participants
Additional information on site, travel, etc if necessary.
15 th July 2011
Deadline for submission of final abstracts and optional full papers for the Proceedings.
Deadline for payment of workshop fee
Organising committee
Scientific organisers
Dr. Baruch Rubin, J & R Liss Professor of Agronomy & Weed Science,
Institute of Plant Sci. & Genetics in Agriculture
RH Smith Faculty of Agriculture, Food and Environment
The Hebrew University of Jerusalem. Rehovot 76100, Israel
Phone: ++972-(0)8-948-9248 Fax: ++972-(0)8-936-2083 Mobile: ++972(0)54-8820054
E-mail: rubin@agri.huji.ac.il
Dr. Euro Pannacci
University of Perugia
Dept of Agricultural and Environmental Sciences
Borgo XX Giugno, 74 06121, Perugia - Italy
Phone: +39 075 5856342 Fax: +39 075 5856344
E-mail: pannacci@unipg.it
Dr. Joaquín Aibar (Escuela Politécnica Superior de Huesca, University of Zaragoza, Spain)
(jaibar@aragon.es )
Dr. Alicia Cirujeda & Dr.Carlos Zaragoza (Centro de Investigación y Tecnología Agroalimentaria
(CITA), Zaragoza, Spain) (acirujeda@aragon.es; carza@aragon.es )
Local organisers
A.Cirujeda & C. Zaragoza (Centro de Investigación y Tecnología Agroalimentaria (CITA),
Zaragoza, Spain)
J. Aibar (Escuela Politécnica Superior de Huesca, University of Zaragoza, Spain)
S. Fernández-Cavada (Centro de Protección Vegetal, Diputación General de Aragón, Zaragoza,
Spain) (sfernandez-cavada@aragon.es )
6

Instructions for the preparation of
abstracts and papers for the proceedings
Abstracts are mandatory for all authors.
The final formatting and changes in font size for paragraphs and various headings will be done by
the editor.
General instructions:
Word processor: If at all possible, please submit your text in a PC compatible format, using either
WordPerfect for Windows (version 6 or up) or Microsoft Word for Windows (.doc not
.docx). Otherwise, save your text as a RTF file (rich text format).
Paper format: A4 (210 x 297 mm)
Page margins: 20 mm on every side except for the top where the margin is 30 mm
Line spacing: Single space
Font: Times New Roman
Font size: 12 pt. everywhere in the text, including headings, title, etc. Text in the tables can be smaller
to make it fit but no less than 8 pt. Superscript and subscript can be used anywhere.
Text justification: Left justified everywhere, for all the text, title, authors, etc
Page numbering: NONE
Headers, footers: NONE
Latin names: Use italics for Latin names. Do not underline. Use common names for crops and Latin names
for weeds. Common names for weeds may be indicated in parenthesis after the first mention
of the Latin binomial.
Paragraphs: No indentation
Between paragraphs: Insert a blank line between paragraphs
Headings: Four levels of heading can be used. All in Times Roman at 12 pt.
- The first level is bold, preceded and followed by a blank line
- The second level is in italics, preceded by a blank line
- The third level is underlined, preceded by a blank line
- The fourth level is underlined and in italics, preceded by a blank line
Measurement units: Standard international units should be used
Space preceding and following various headings: One blank line
Insert only one single blank space after a full stop in a sentence.
File name: Please note that you must use file names that are informative when submitting your abstract or full
paper. When submitting your text, please use you name and use underscore ( _ ) between words.
Example:
Bo_Melander.doc. If you submit more than 1 file, use numbers. Example:
Bo_Melander_1.doc, etc.
Abstracts:
Mandatory for all authors is the submission of a one-page abstract for each oral or poster presentation. These abstracts
will appear in the hard-copy booklet that will be distributed at the workshop and also in the proceedings of the
workshop. Your text must conform to the general instructions above and to the following instructions:
Headings: No more than two levels
Tables and figures: Should be avoided in the abstracts
References: Maximum of three references should appear in the abstracts.
7

Example of an abstract
(text truncated, used for illustration purposes only, one extra name
was added after Pullen):
Comparison of alternative interrow weeder steering systems
D.W.M. Pullen 1 , A.N. Addedname 1 and P.A. Cowell 2
1 Cranfield University at Silsoe, Silsoe, Bedford MK45 4DT, UK Email: d.pullen@cranfield.ac.uk
2 Consultant, formerly with Cranfield Univesity at Silsoe
The success of interrow weeding depends on being able to quickly and accurately guide the weeder
along the rows. This can only be done by automatically guiding the weeder. Any automatic weeder
steering system requires a sensor/s to provide an error or guidance signal and a mechanism to move
the hoes to the correct lateral position at the correct time ……….
Results of the study show the modelling technique was accurate. The amplitude of the predicted
weeder path was within 2% and the phase angle within 2 degrees of the actual value. 1The study
also suggests fitting steered wheels, whose position moved proportionally with the error signal was
overall the most suitable method of steering the weeder. For this steering system the model shows
the critical parameters affecting overall performance were the steering gain and hoe position. The
tractor type (ICR position), the sensing position, the steered wheel position and steered wheel axle
position did not significantly influence performance. However, positioning the steered wheels
behind the headstock but in front of the weeding blades would be better practically.
Selected references
Pullen DWM and Cowell PA (2000). Prediction and experimental verification of a rear-mounted
inter-row weeder. J. agric. Engng Res 77, (2) 137-153.
Jahns G (1976). Automatic guidance of farm vehicles - a monograph. Agricultural Engineering
Departmental Series No 1. Agricultural Experiment Station, Auburn University.
8

Full papers (optional):
There is an example below.
Authors who want to publish full papers are requested to upload their contributions no later than 15 July 2011. These
papers will appear in the proceedings which will be made available on the web. Papers received after 15 July 2011
will not appear in the Proceedings.
The language for the texts will be English. The texts will not be refereed and therefore the author(s) must assume full
responsibility for any errors or omissions. The maximum number of pages allowed for a manuscript is 15 pages
(including tables, figures and pictures). The submitted paper must be formatted exactly as it is intended to appear, with
the tables and figures included in the text.
Left align everything, title, headings, etc.
Title:
Bold. Capitalise only the first word and proper names in the title. Include only the scientific names of weeds and of
uncommon crops in the title, but only the common names of well-known crops.
Author(s):
Skip one line after the Title. The author(s) list and affiliation/location are left aligned and in boldface.
Use first name initials prior to family name (e.g. D.W.M. Pullen 1 and P.A. Cowell 2 ). Use the same numbers in
superscript after family name to identify authors with same mailing address. On the line below the author’s name(s),
when there is more than one author, put the number in superscript, followed by the author’s name of institution, city,
country and email.
Body of the text:
Skip one line after the last author’s address. Main headings are left justified on one line in boldface.
In Materials and methods, include location of manufacturers or suppliers with brand names.
Discussion must incorporate conclusions. Skip one line before each heading and skip a line after each heading.
Normally, main headings are:
Abstract, Introduction, Material and Methods, Results, Discussion (or Results and discussion), Acknowledgements,
References but other headings could be used if relevant.
Standard international units (SIU) must be used. For SI usage see Standard Practice for Use of the International System
of Units E380-91a, available from American Society for Testing and Materials, 1916 Race St., Philadelphia, PA 19103.
Use mass rather than weight; use negative exponents for units in the denominator (e.g., kg m-2) and use L for litre (mL
for millilitre).
Use "Figure" only at start of sentence; otherwise "Fig." or "Figs."
References: For reference citations, follow the Weed Research style
Tables and figures:
• Number tables and figures in Arabic followed by a full stop. Capitalise the first word of the
title; all others should be in lowercase unless a proper noun; place a full stop at the end of the
table title.
• Insert a blank line before and after a table or a figure.
• The text in the tables should be no less than 8 pt. in size.
• Tables should be made using the Table option of your word processor rather than using spaces
or tabs.
• Capitalise the first word of each entry in each column; do not use vertical lines; indicate
footnotes by lowercase superscript letters.
• Tables, figures and pictures should not exceed page margins (170 mm).
9

Example of a full paper
(text truncated, used for illustration purposes only):
Analysis and definition of the close-to-crop area in relation to robotic weeding
M. Nørremark and H.W. Griepentrog
The Royal Veterinary and Agricultural University, Department of Agricultural Sciences /
AgroTechnology, Copenhagen, Denmark
Abstract
The objective of this paper is to analyse and define the field conditions close to the crop plants of
sugar beet (Beta vulgaris L.). The aim is to use this study for the choice and......
Introduction
So far, no commercial mechanical or physical method has been developed for highly selective
control of weeds within the crop row. Concerning efficiency, the available.....
[Plants m 100 -2 ]
Weed
Density
50
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Distance from crop plant
[cm]
Figure 1. Relationship between weed counts and distance from centre of sugar beet plant at the
cotyledon stage. The average weed density of whole plot is indicated by a dotted line.
Table 1. Frequency of weed species on Danish sugar beet fields. Data from a vegetation study
during 1987 to 1989 on 47 locations in Denmark (Andreasen, 1990). The weed species, which have
a negative impact on yield is indicated by ‘Yes’. ‘No’ means the weed species do not have an
negative impact on yield (modified after Melander, 1993)
Latin name
Frequency
a
[%]
Yield reduction
impact
Chenopodium album 37.4 Yes
Stellaria media 33.6 Yes
Veronica spp. 23.8 No
a Percentage of locations with presence of each weeds species.
References
Andreasen C (1990) The occurrence of weed species in Danish arable fields. PhD thesis, The Royal
Veterinary and Agricultural University, Copenhagen, Denmark
Ascard J and Mattson B (1994) Inter-row cultivation in weed-free carrots: the effect on yield of
hoeing and brush weeding. Biological Agriculture and Horticulture 10, 161-173.
10