3514
1
archive
1692
disk0/00/00/35/14
2005-03-05
2009-08-20 14:24:06
2009-08-20 14:24:06
conference_item
show
0
de
- wissenschaftstagung-2005
01.03.2005 - 04.03.2005
8. Wissenschaftstagung Ökologischer Landbau - Ende der Nische
Kassel
yes
0
Strategies of weed control in sugar beet - results from on-farm trials
- http://www.ifz-goettingen.de
TRUE
poster
-
König
Hans-Peter
Dr.
-
Koch
Heinz-Josef
Dr.
Strategien der Unkrautregulierung in Zuckerrüben - Ergebnisse aus Anbauvergleichen
pub
- 9weed
Bodenbearbeitung; Striegel; Vorauflauf; Nachauflauf; Unkrautdichte
In 2003 the effect of tillage timing (mouldboard ploughing in autumn or spring) and seeding time on weed density in sugar beet was examined in an on-farm trial near Göttingen. Weed density was highest (110 plants m-2) when sugar beets were sown early (7th April). Ploughing in autumn and late sowing (22nd April) led to the lowest weed density (15 plants m-2). 35 plants m-2 were found after ploughing in spring with late sowing. After early sowing, the weed population was dominated by Matricaria spp., while after late sowing Chenopodium album L. was the dominating species. Besides, late sowing resulted in yield losses compared to early sowing. In 2004 weed density was very low (Ø 15 plants m-2) and neither ploughing time nor harrowing pre- or post-emergence had an effect. This was due to the preceding grass-legume mixture and a very dry spring. Weed population was dominated (80-90 %) by C. album L. and volunteer plants from the preceding crop. Harrowing post emergence tended to reduce sugar beet density but still exceeded 80,000 plants ha-1.
2005
published
Ende der Nische, Beiträge zur 8. Wissenschaftstagung Ökologischer Landbau
kassel university press GmbH, Kassel
-
Heß
J
-
Rahmann
G
Wellmann, A (1999) Konkurrenzbeziehung und Schadensprognose in Zuckerrüben bei variiertem zeitlichen Auftreten von Chenopodium album L. und Chamomilla recutita (L.) Rauschert. Diss. Universität Göttingen
Cussans, GW (1989) The effects of cultivation on weeds and weed control. S. 163-170. In: Energy saving by reduced soil tillage. Baeumer, K, Ehlers W (Hrsg.), Proceedings of a workshop held in Göttingen (FRG) on 10. and 11. June 1987
Kolbe, H, Petzold W (2002) Zuckerrübenanbau im Ökologischen Landbau. Informationen für Praxis und Beratung, Sächsische Landesanstalt für Landwirtschaft
public
3467
1
3514
1
application/pdf
de
public
3514.pdf
3514.pdf
83948
http://orgprints.org/3514/1/3514.pdf