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Critical Weed-Control Period in Seeded Cabbage (Brassica oleracea var capitata)

Published online by Cambridge University Press:  12 June 2017

Alan B. Miller
Affiliation:
Dep. of Hortic., UW-Madison, Madison, WI 53706
Herbert J. Hopen
Affiliation:
Dep. of Hortic., UW-Madison, Madison, WI 53706

Abstract

The critical weed-control period in field seeded cabbage using natural weed stands was 2 wk in 1988 and 4 wk in 1989. Regression analysis showed that the length of weed-free period, weed density, and ambient light reduction by competing weeds were factors affecting cabbage yield. Weeds that emerged after the initial weed-free period shaded the soil and subsequently lowered soil surface temperatures in 1989. Velvetleaf densities of 1.2 and 3.6 plants per m2 that competed all season with cabbage reduced cabbage yields 52% and 71% of the weed-free treatment in 1988 and 76% and 92% in 1989, respectively. Cabbage yields were reduced at all velvetleaf densities seeded 0, 1, and 2 wk after cabbage, but cabbage yield was not reduced when velvetleaf was seeded 4 or 6 wk after cabbage. Cabbage yield was not different between parallel and staggered velvetleaf configurations at 0.6 plants per m2, but was reduced with longer periods of competition. Velvetleaf seed production was prevented with 6 wk weed-free period after cabbage emergence and subsequent destruction of emerging velvetleaf after cabbage harvest.

Type
Research
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

Literature Cited

1. Bhomik, P. C., and McGlew, E. N. 1986. Effects of oxyfluorfen as a pretransplant treatment on weed control and cabbage yield. J. Am. Soc. Hortic. Sci. 11:686689.Google Scholar
2. Dekker, J., and Meggitt, W. F. 1983. Interference between velvetleaf (Abutilon theophrasti Medic.) and soybean (Glycine max (L.) Merr.) I. Growth. Weed Res. 23:91101.Google Scholar
3. Enoch, H. Z., and Kimball, B. A. 1986. Carbon dioxide enrichment of greenhouse crops. CRC Press. Boca Raton. Vol. I. p. 317.Google Scholar
4. Hagood, E. S. Jr., Baumann, T. T., Williams, J. L. Jr., and Schreiber, M. M. 1980. Growth analysis of soybeans (Glycine max) in competition with velvetleaf (Abutilon theophrasti). Weed Sci. 28:729734.Google Scholar
5. Hopen, H. J., and Oebker, N. F. 1975. Mulch effects on ambient carbon dioxide levels and growth of several vegetables. HortScience 10:159161.Google Scholar
6. Hopen, H. J., and Ries, S. K. 1962. Atmospheric carbon dioxide levels over mineral and muck soils. Proc. Am. Soc. Hortic. Sci. 81:365368.Google Scholar
7. Khedir, K. D., and Roeth, F. W. 1981. Velvetleaf (Abutilon theophrasti) seed populations in six continuous-corn (Zea mays) fields. Weed Sci. 29:485490.Google Scholar
8. Munger, P. H., Chandler, J. M., Cothren, J. T., and Hons, F. M. 1987. Soybean (Glycine max)–velvetleaf (Abutilon theophrasti) interspecific competition. Weed Sci. 35:647653.Google Scholar
9. Oliver, L. R., and Buchanan, G. A. 1986. Research Methods in Weed Science. 3rd ed. Weed Competition and Economic Thresholds. South. Weed Sci. Soc. Champaign. p. 7198.Google Scholar
10. Palm, R. S., and deSouza, A. R. Wisconsin Weather. 2nd ed. 1983. Burgess Publishing Co., Minneapolis. p. 133157.Google Scholar
11. Regnier, E. E., and Stoller, E. W. 1989. The effects of soybean (Glycine max) interference on the canopy architecture of common cocklebur (Xanthium strumarium), jimsonweed (Datura stramonium), and velvetleaf (Abutilon theophrasti). Weed Sci. 37:187195.Google Scholar
12. Roberts, H. A., Bond, W., and Hewson, R. T. 1976. Weed competition in drilled summer cabbage. National Vegetable Research Station, Wellsbourne, Warwick. Ann. Appl. Biol. 84:9195.Google Scholar
13. Ross, M. A., and Lembi, C. A. 1985. Applied Weed Science. Burgess Publishing Co. Minneapolis. p. 144.Google Scholar
14. Shadbolt, C. A., and Holm, L. G. 1956. Some quantitative aspects of weed competition in vegetable crops. Weeds 4:111123.Google Scholar
15. Stoller, E. W., and Woolley, J. T. 1985. Competition for light by broadleaf weeds in soybeans (Glycine max). Weed Sci. 33:199202.CrossRefGoogle Scholar
16. Zimdahl, R. L. Weed-Crop Competition. A Review. Int. Plant Prot. Cent., Oreg. State Univ., Corvallis, OR. p. 83.Google Scholar