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The Effect of Rotation and In-Crop Weed Management on the Germinable Weed Seedbank after 10 Years

  • Robert H. Gulden (a1), Derek W. Lewis (a1), Jane C. Froese (a1), Rene C. Van Acker (a2), Gary B. Martens (a1), Martin H. Entz (a1), Doug A. Derksen (a3) and Lindsay W. Bell (a4)...


Agricultural production systems that reduce the use of in-crop herbicides could greatly reduce risks of environmental damage and the development of herbicide-resistant weeds. Few studies have investigated the long-term effects of in-crop herbicide omissions on weed seedbank community size and structure. A crop-rotation study was sampled 10 yr after a strictly annual rotation and an annual/perennial rotation were exposed to different in-crop herbicide omission treatments. In-crop herbicides were applied either in all annual crops (control), omitted from oats only, or omitted from both flax and oats. Seedbank densities were greatest when in-crop herbicides were omitted from flax and oats, and this treatment also reduced crop yield. Shannon-Wiener diversity differed among crops in the annual crop rotation and among herbicide omission treatments in the perennial rotation. Herbicide omissions changed the weed-community structure in flax and in wheat and canola crops in the annual rotation enough to warrant alternate control methods in some treatments. The magnitude of the effects on the seedbank parameters depended largely on the competitive ability of the crop in which herbicides were omitted. No yield response to omitting herbicides in oats indicated that standard weed management practices have reduced weed populations below yield-loss thresholds.


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Albrecht, H. 2005. Development of arable weed seedbanks during the 6 years after the change from conventional to organic farming. Weed Res. 45:339350.
Anonymous. 2010. Guide to Field Crop Protection—Weed Control. Accessed: February 16, 2010.
Barberi, P., Silvestri, N., and Bonari, E. 1997. Weed communities of winter wheat as influenced by input level and rotation. Weed Res. 37:301313.
Beckie, H. J., Leeson, J. Y., Thomas, A. G., Hall, L. M., and Brenzil, C. A. 2008. Risk assessment of weed resistance in the Canadian prairies. Weed Technol. 22:741746.
Bellinder, R. R., Dillard, H. R., and Shah, D. E. 2003. Weed seedbank community responses to crop rotations schemes. Crop Prot. 23:94101.
Booth, B. D. and Swanton, C. J. 2002. Assembly theory applied to weed communities. Weed Sci. 50:213.
Cardina, J., Herms, C. P., and Doohan, D. J. 2002. Crop rotation and tillage system effects on weed seedbanks. Weed Sci. 50:448460.
Cardina, J. and Sparrow, D. H. 1996. A comparison of methods to predict weed seedling populations from the soil seedbank. Weed Sci. 44:4651.
Cathcart, R. J., Topinka, A. K., Kharbanda, P., Lange, R., Yang, R. C., and Hall, L. M. 2006. Rotation length, canola variety and herbicide resistance system affect weed populations and yield. Weed Sci. 54:726734.
Cavers, P. B. 1995. Seed banks: memory in soil. Can. J. Soil Sci. 75:1113.
Conn, J. S., Beattie, K. L., and Blanchard, A. 2006. Seed viability and dormancy of 17 weed species after 19.7 years of burial in Alaska. Weed Sci. 55:464470.
Davis, A. S., Renner, K. A., and Gross, K. L. 2005. Weed seedbank and community shifts in a long-term cropping system. Weed Sci. 53:296306.
Derksen, D. A., Thomas, A. G., Lafond, G. P., Loeppky, H. A., and Swanton, C. J. 1995. Impact of post-emergence herbicides on weed community diversity within conservation tillage systems. Weed Res. 35:311320.
Derksen, D. A. and Watson, P. R. 1998. Weed community composition in seedbanks, seedling, and mature plant communities in a multi-year trial in western Canada. Asp. Appl. Biol. 51:4350.
Doucet, C., Weaver, S. E., Hamill, A. S., and Zhang, J. 1999. Separating the effects of crop rotation from weed management on weed density and diversity. Weed Sci. 47:729735.
Feldman, S. R., Alzugaray, C., Torres, P. S., and Lewis, P. 1997. The effect of different tillage systems on the composition of the seedbank. Weed Res. 37:71–16.
Fleck, N. G., Schaedler, C. E., Aostinetto, D., Rigoli, R. P., Dal Margo, T., and Tironi, S. P. 2009. Association of plant traits in oat cultivars with competitive ability. Planta Daninha. 27:211220.
Gulden, R. H., Sikkema, P. H., Hamill, A. S., Tardif, F., and Swanton, C. J. 2010. Conventional vs. glyphosate-resistant cropping systems in Ontario: multivariate and nominal trait-based weed community structure. Weed Science. 58:278288.
Harbuck, K. S. B., Menalled, F. D., and Pollnac, F. W. 2009. Impact of cropping systems on the weed seed banks in the northern Great Plains, USA. Weed Biol. Manag. 9:160168.
Harker, K. N., Clayton, G. W., Blackshaw, R. E., O'Donovan, J. T., Lupwayi, N. Z., Johnson, E. N., Lafond, G. P., and Irvine, R. B. 2005. Glyphosate-resistant spring wheat production system effects on weed communities. Weed Sci. 53:451464.
Heap, I. M. 1997. The occurrence of herbicide-resistant weeds worldwide. Pest Manag. Sci. 51:235243.
Légère, A. and Stevenson, F. C. 2002. Residual effects of crop rotation and weed management on a wheat test crop and weeds. Weed Sci. 50:101111.
Légère, A., Stevenson, F. C., and Benoit, D. L. 2005. Diversity and assembly of weed communities: contrasting responses across cropping systems. Weed Res. 45:303315.
Leps, J. and Smilauer, P. 1999. Multivariate analysis of ecological data. Ceske Budejovice, Czech Republic University of South Bohemia. 110 p.
Leroux, G. D., Benoit, D. L., and Banville, S. 1996. Effect of carrot rotations on weed control, Bidens ceruna and Erigeron canadensis populations and carrot yields in organic soils. Crop Prot. 15:171178.
Liebman, M. and Dyck, E. 1993. Crop rotation and intercropping strategies for weed management. Ecol. Appl. 3:92122.
Littell, R. C., Miliken, G. A., Stroup, W. W., and Wolfinger, R. D. 1996. SAS System for Mixed Models. Cary, NC SAS Institute. 633 p.
Lund, R. E. 1975. Tables for an approximate test for outliers in linear models. Technometrics. 17:473476.
Lutman, P.J.W., Risiott, R., and Ostermann, H. P. 1996. Investigations into alternative methods to predict the competitive effects of weeds on crop yields. Weed Sci. 44:290297.
Menalled, F. D., Gross, K. L., and Hammond, M. 2001. Weed aboveground and seedbank community response to agricultural management systems. Ecol. Appl. 11:15861601.
Mickelson, J. A. and Stougaard, R. N. 2003. Assessment of soil sampling methods to estimate wild oat (Avena fatua) seed bank populations. Weed Sci. 51:226230.
Norsworthy, J. K. 2008. Effect of tillage and herbicide programs on changes in weed species density and composition in the southeastern coastal plains of the United States. Crop Prot. 27:151160.
Økland, R. H. 2003. Partitioning the variation in a plot-by-species data matrix that is related to n sets of explanatory variables. J. Veg. Sci. 14:693700.
Ominski, P. D. and Entz, M. H. 2001. Eliminating soil disturbance reduces post-alfalfa summer annual weed populations. Can. J. Plant Sci. 81:881884.
Ominski, P. D., Entz, M. H., and Kenkel, N. 1999. Weed suppression by Medicago sativa in subsequent cereal crops: a comparative survey. Weed Sci. 47:282290.
Saxton, A. 1998. A macro for converting mean separation output to letter groupings in Proc Mixed. Pages 12431246 in Proceedings of the 23rd SAS Users Group International. Cary, NC SAS Institute.
Schoofs, A., Entz, M. H., Van Acker, R. C., Thiessen Martens, J. R., and Derksen, D. A. 2005. Agronomic performance of pesticide free production under two crop rotations. Renew. Agri. Food Syst. 20:91100.
Shannon, C. E. and Weaver, W. 1949. The Mathematical Theory of Communication. Urbana, IL University of Illinois Press. 12 p.
Sosnoskie, L. M., Herms, C. P., and Cardina, J. 2006. Weed seedbank community composition in a 35-yr-old tillage and rotation experiment. Weed Sci. 54:263273.
Swanton, C. J., Booth, B. D., Chandler, K., Clements, D. R., and Shrethra, A. 2006. Management in a modified no-tillage corn-soybean-wheat rotation influences weed population and community dynamics. Weed Sci. 54:4758.
Swanton, C. J., Mahoney, K. J., Chandler, K., and Gulden, R. H. 2008. Integrated weed management: knowledge based weed management systems. Weed Sci. 56:168172.
Swanton, C. J., Shrestha, A. L., Roy, R. C., Ball–Coelho, B. R., and Knezevic, S. Z. 1999. Effect of tillage systems, N, and cover crop on the composition of weed flora. Weed Sci. 47:454461.
Thorne, M. E., Young, F. L., and Yenish, J. P. 2007. Cropping systems alter weed seed banks in the Pacific Northwest semi-arid wheat region. Crop Prot. 26:11211134.
Unger, P. W., Miller, S. D., and Jones, O. R. 1999. Weed seeds in long-term dryland tillage and cropping system plots. Weed Res. 39:213223.
Willenborg, C. J., May, W. E., Gulden, R. H., Lafond, G. P., and Shirtliffe, C. J. 2005. Influence of wild oat (Avena fatua) relative time of emergence and density on cultivated oat yield, wild oat seed production, and wild oat contamination. Weed Sci. 53:342352.



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