Effects of density and spatial pattern of winter wheat on suppression of different weed species

Weed Science

Volumn 53, Issue 5, 2005, Pages 690-694

  Olsen, Jannie ^a   Kristensen, Lars ^a   Weiner, Jacob ^a  

^a UNIVERSITY OF COPENHAGEN   (Denmark)

Author keywords

Crop weed competition; Sowing density; Spatial uniformity

Indexed keywords

BIOMASS; CANOLA; COMPETITION (ECOLOGY); CROP YIELD; HERBICIDE; SOWING; WEED; WEED CONTROL; WHEAT;

ANTHEMIS ARVENSIS; BRASSICA NAPUS; BRASSICA NAPUS VAR. NAPUS; PAPAVER RHOEAS; TRITICUM AESTIVUM;

EID: 33746399116     PISSN: 00431745     EISSN: None     Source Type: Journal    
DOI: 10.1614/WS-04-144R2.1     Document Type: Article

References (16)

1. Anonymous. 2004. Agroclimate at Taastrup (1961-2004). Copenhagen, Denmark: Department of Agricultural Science, The Royal Veterinary and Agricultural University.
2. Blackshaw, R. E., G. Semach, X. Li, T. O'Donovan, and K. N. Harker. 1999. An integrated management approach to managing foxtail barley (Hordeum jubatum) in conservation tillage systems. Weed Technol. 13:347-353.
3. Cirujeda, A., B. Melander, K. Rasmussen, and I. A. Rasmussen. 2003. Relationship between speed, soil movement into the cereal row and intra-row weed control efficacy by weed harrowing. Weed Res. 43:285-296.
4. Hashem, A., S. R. Radosevich, and N. L. Roush. 1998. Effect of proximity factors on competition between winter wheat (Triticum aestivum) and Italian ryegrass (Lolium multiflorum). Weed Sci. 46:181-190.
5. Justice, G. G., T. F. Peeper, J. B. Solie, and F. M. Epplin. 1994. Net return from Italian ryegrass (Lolium multiflorum) control in winter wheat (Triticum aestivum). Weed Technol. 8:317-323.
6. Korres, N. E. and R. J. Froud-Williams. 2002. Effects of winter wheat cultivars and seed rate on the biological characteristics of naturally occurring weed flora. Weed Res. 42:417-428.
7. Koscelny, J. A., T. F. Peeper, J. B. Solie, S. G. Solomon, Jr. 1991. Seeding date, seeding rate, and row spacing affect wheat (Triticum aestivum) and cheat (Bromus secalinus). Weed Technol. 5:707-712.
8. Melander, B., A. Cirujeda, and M. H. Jorgensen. 2003. Effects of interrow hoeing and fertilizer placement on weed growth and yield of winter wheat. Weed Res. 43:428-438.
9. Mohler, C. L. 2001. Enhancing the competitive ability of crops. Pages 231-269 in M. Liebman, C. L. Mohler, and C. P. Staver, eds. Ecological Management of Agricultural Weeds. Cambridge, U.K.: Cambridge University Press.
10. Olsen, J., L. Kristensen, J. Weiner, and H. W. Griepentrog. 2005. Increased density and spatial uniformity increase weed suppression by spring wheat (Triticum aestivum). Weed Res. 45:316-321.
11. Rasmussen, J. 1998. Ukrudtsharvning i vinterhvede (Weed harrowing in winter wheat. With English summary). Pages 179-189 in Proceedings of the 15th Danish Plant Protection Conference and Weeds. Nyborg, Denmark. Tjele, Denmark: Danmarks Jordbrugs forskning.
12. [SAS] Statistical Analysis Systems. 1996. SAS System for Mixed Models. Gary, NC: SAS Institute.
13. Solie, J. B., S. G. Solomon, K. P. Self, T. F. Peeper, and J. A. Koscelny. 1991. Reduced row spacing for improved wheat yields in weed-free and weed-infested fields. Am. Soc. Agric. Eng. 34:1654-1660.
14. Teich, A. H, A. Smid, T. Welacky, and A. Hamil. 1993. Row-spacing and seed-rate effects on winter wheat in Ontario. Can. J. Plant Sci. 73:31-35.
15. Vander Vorst, P. B., G. A. Wicks, and O. C. Burnside. 1983. Weed control in a winter wheat-corn-ecofarming rotation. Agron. J. 75:507-511.
16. Weiner, J., H-W. Griepentrog, and L. Kristensen. 2001. Suppression of weeds by spring wheat Triticum aestivum increases with crop density and spatial uniformity. J. Appl. Ecol. 38:784-790.