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Seedbank and Emerged Annual Weed Populations in Cornfields (Zea mays) in Colorado

  • Edward E. Schweizer (a1), Philip Westra (a2) and Donald W. Lybecker (a3)

Abstract

Fifty irrigated cornfields in five eastern Colorado counties were sampled for their seedbanks and annual weed seedlings and mature populations between 1988 and 1992. Fourteen annual broadleaf species and seven annual grass species were identified in the 50 seedbanks sampled after the fields were tilled in the fall. Redroot pigweed and a mixture of green and yellow foxtail were the weed species encountered most, occurring in 90 and 54% of the fields, respectively. The single-plant populations of broadleaf and grass species in June and September were similar to those observed in the seedbanks. The number of weed species as seeds in the seedbank, June seedlings, and September plants per field ranged from zero to five grass species and zero to eight broadleaf species.

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Corresponding author e-mail: edwardes@frii.com

References

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Benoit, D. L., Kenkel, N. C., and Cavers, P. B. 1989. Factors influencing the precision of soil seed bank estimates. Can. J. Bot. 67:28332840.
Bigwood, D. W. and Inouye, D. W. 1988. Spatial pattern analysis of seed banks: an improved method and optimized sampling. Ecology 69:497507.
Cardina, J., Regnier, E., and Harrison, K. 1991. Long-term tillage effects on seed banks in three Ohio soils. Weed Sci. 39:186194.
Cardina, J., Sparrow, D. H., and McCoy, E. L. 1995. Analysis of spatial distribution of common lambsquarters (Chenopodium album) in no-till soybean (Glycine max). Weed Sci. 43:258268.
Cavers, P. B. and Benoit, D. L. 1989. Seed banks in arable land. In Leck, M. A., Parker, V. T., and Simpson, R. L., eds. Ecology of Soil Seed Banks. San Diego, CA: Academic Press, Inc., pp. 309328.
Chauvel, B., Gasquez, J., and Darmency, H. 1989. Changes of weed seed bank parameters according to species, time and environment. Weed Res. 29:213219.
Delorit, R. J. 1970. An illustrated taxonomy manual of weed seeds. Riverfalls, WI: Agronomy Publications. 175 p.
Dessaint, F., Chadoeuf, R., and Barralis, G. 1991. Spatial pattern analysis of weed seeds in the cultivated seed bank. J. Appl. Ecol. 28:721730.
Forcella, F., Wilson, R. G., Renner, K. A., Dekker, J., Harvey, R. G., Alm, D. A., Buhler, D. D., and Cardina, J. 1992. Weed seedbanks of the U.S. corn belt: magnitude, variation, emergence, and application. Weed Sci. 40:636644.
Frick, B. and Thomas, A. G. 1992. Weed surveys in different tillage systems in southwestern Ontario field crops. Can. J. Plant Sci. 72:13371347.
Johnson, G. A., Mortensen, D. A., Young, L. J., and Martin, A. R. 1995. The stability of weed seedling population models and parameters in eastern Nebraska corn (Zea mays) and soybean (Glycine max) fields. Weed Sci. 43:604611.
Ludwig, J. A. and Reynolds, J. F. 1988. Diversity indices. In Ludwig, J. A. and Reynolds, J. R. Statistical Ecology, New York, NY: John Wiley & Sons. pp. 85103.
Lybecker, D. W., Schweizer, E. E., and King, R. P. 1991. Weed management decisions in corn based on bioeconomic modeling. Weed Sci. 39:124129.
Lybecker, D. W., Schweizer, E. E., and Westra, P. 1993. Computer decision aid for managing weeds in irrigated corn. Proc. Agric. Res. Prot. Water Quality, Soil Water Conserv. Soc. 1:295297.
Mortensen, D. A., Johnson, G. A., and Young, L. J. 1993. Weed distribution in agricultural fields. In Robert, P. C., Rust, R. H., and Larson, W. E., eds. Soil Specific Crop Management. Madison, WI: ASA, CSSA, and SSSA. pp. 113124.
Schweizer, E. E., Lybecker, D. W., Wiles, L. J., and Westra, P. 1993. Bioeconomic models in crop production. Int. Crop Sci. I, Chap. 15. pp. 103107.
Thomas, A. G. 1985. Weed survey system used in Saskatchewan for cereal and oilseed crops. Weed Sci. 33:3443.
Thomas, A. G. 1991. Floristic composition and relative abundance of weeds in annual crops of Manitoba. Can. J. Plant Sci. 71:831839.
Wiles, L. J., Oliver, G. W., York, A. C., Gold, H. J., and Wilkerson, G. G. 1992. Spatial distribution of broadleaf weeds in North Carolina soybean (Glycine max) fields. Weed Sci. 40:554557.
Wilson, R. G. 1988. Biology of weed seeds in soil. In Altieri, M. A. and Liebman, M., eds. Weed Management in Agroecosystems: Ecological Approaches. Boca Raton, FL: CRC Press, Inc. pp. 2539.
Wilson, R. G., Kerr, E. D., and Nelson, L. A. 1985. Potential for using weed seed content in the soil to predict future weed problems. Weed Sci. 33:171175.

Keywords

Seedbank and Emerged Annual Weed Populations in Cornfields (Zea mays) in Colorado

  • Edward E. Schweizer (a1), Philip Westra (a2) and Donald W. Lybecker (a3)

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