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Weed Seed Persistence and Microbial Abundance in Long-Term Organic and Conventional Cropping Systems

  • Silke D. Ullrich (a1), Jeffrey S. Buyer (a1), Michel A. Cavigelli (a1), Rita Seidel (a2) and John R. Teasdale (a1)...
Abstract

Weed seed persistence in soil can be influenced by many factors, including crop management. This research was conducted to determine whether organic management systems with higher organic amendments and soil microbial biomass could reduce weed seed persistence compared with conventional management systems. Seeds of smooth pigweed and common lambsquarters were buried in mesh bags in organic and conventional systems of two long-term experiments, the Farming Systems Project at the Beltsville Agricultural Research Center, Maryland, and the Farming Systems Trial at the Rodale Institute, Pennsylvania. Seed viability was determined after retrieval at half-year intervals for 2 yr. Total soil microbial biomass, as measured by phospholipid fatty acid (PLFA) content, was higher in organic systems than in conventional systems at both locations. Over all systems, locations, and experiments, viable seed half-life was relatively consistent with a mean of 1.3 and 1.1 yr and a standard deviation of 0.5 and 0.3 for smooth pigweed and common lambsquarters, respectively. Differences between systems were small and relatively inconsistent. Half-life of smooth pigweed seeds was shorter in the organic than in the conventional system in two of four location-experiments. Half-life of common lambsquarters was shorter in the organic than in the conventional system in one of four location-experiments, but longer in the organic than in the conventional system in two of four location-experiments. There were few correlations between PLFA biomarkers and seed half-lives in three of four location-experiments; however, there were negative correlations up to −0.64 for common lambsquarters and −0.55 for smooth pigweed in the second Rodale experiment. The lack of consistent system effects on seed persistence and the lack of consistent associations between soil microbial biomass and weed seed persistence suggest that soil microorganisms do not have a dominating role in seed mortality. More precise research targeted to identifying specific microbial functions causing seed mortality will be needed to provide a clearer picture of the role of soil microbes in weed seed persistence.

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Corresponding author's E-mail: john.teasdale@ars.usda.gov
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S. Benvenuti , M. Macchia , and S. Miele 2001. Quantitative analysis of emergence of seedlings from buried seeds with increasing soil depth. Weed Sci. 49:528535.

I. Bernal-Lugo and A. C. Leopold 1998. The dynamics of seed mortality. J. Exp. Bot. 49:14551461.

H. J. Bouwmeester and C. M. Karssen 1993. Seasonal periodicity in germination of seeds of Chenopodium album L. Ann. Bot. 72:463473.

D. D. Buhler and R. G. Hartzler 2001. Emergence and persistence of seed of velvetleaf, common waterhemp, woolly cupgrass, and giant foxtail. Weed Sci. 49:230235.

J. S. Buyer , D. P. Roberts , and E. Russek-Cohen 1999. Microbial community structure and function in the spermosphere as affected by soil and seed type. Can. J. MicroBiol. 45:138144.

J. S. Buyer , J. R. Teasdale , D. P. Roberts , I. A. Zasada , and J. E. Maul 2010. Factors affecting soil microbial community structure in tomato cropping systems. Soil Biol. BioChem. 42:831841.

M. A. Cavigelli , J. R. Teasdale , and A. E. Conklin 2008. Long-term agronomic performance of organic and conventional field crops in the mid-Atlantic region. Agron. J. 100:785794.

W. R. Cookson , D. V. Murphy , and M. M. Roper 2008. Characterizing the relationships between soil organic matter components and microbial function and composition along a tillage disturbance gradient. Soil Biol. BioChem. 40:763777.

A. S. Davis 2007. Nitrogen fertilizer and crop residue effects on seed mortality and germination of eight annual weed species. Weed Sci. 55:123128.

A. S. Davis , K. I. Anderson , S. G. Hallett , and K. A. Renner 2006. Weed seed mortality in soils with contrasting agricultural management histories. Weed Sci. 54:291297.

A. S. Davis , B. J. Schutte , J. Iannuzzi , and K. A. Renner 2008. Chemical and physical defense of weed seeds in relation to soil seedbank persistence. Weed Sci. 56:676684.

S. A. Fennimore and L. E. Jackson 2003. Organic amendment and tillage effects on vegetable field weed emergence and seedbanks. Weed Technol. 17:4250.

A. Frostegård and E. Bååth 1996. The use of phospholipid fatty acid analysis to estimate bacterial and fungal biomass in soil. Biol. Fertil. Soils. 22:5965.

E. R. Gallandt , M. Liebman , and D. R. Huggins 1999. Improving soil quality: implications for weed management. J. Crop Prod. 2:95121.

A. C. Grundy , A. Mead , and S. Burston 2003. Modelling the emergence response of weed seeds to burial depth: interactions with seed density, weight and shape. J. Appl. Ecol. 40:757770.

I. E. Henson 1970. The effects of light, potassium nitrate and temperature on the germination of Chenopodium album L. Weed Res. 10:2739.

A. C. Kennedy 1999. Soil microorganisms for weed management. J. Crop Prod. 2:123138.

R. J. Kremer and J. Li 2003. Developing weed-suppressive soils through improved soil quality management. Soil Till. Res. 72:193202.

P. Legendre and E. D. Gallagher 2001. Ecologically meaningful transformations for ordination of species data. Oecologia. 129:271280.

R. L. Long , F. D. Panetta , K. J. Steadman , R. Probert , R. M. Bekker , S. Brooks , and S. W. Adkins 2008. Seed persistence in the field may be predicted by laboratory-controlled aging. Weed Sci. 56:523528.

P. J. W. Lutman , G. W. Cussans , K. J. Wright , B. J. Wilson , G. M. Wright , and H. M. Lawson 2002. The persistence of seeds of 16 weed species over six years in two arable fields. Weed Res. 42:231241.

A. Matilla , M. Gallardo , and M. I. Puga-Hermida 2005. Structural, physiological and molecular aspects of heterogeneity in seeds: a review. Seed Sci. Res. 15:6376.

F. D. Menalled , R. G. Smith , J. T. Dauer , and T. B. Fox 2007. Impact of agricultural management on carabid communities and weed seed predation. Agric. Ecosyst. Environ. 118:4954.

C. L. Mohler 2001. Weed life history: identifying vulnerabilities. Pages 4098 in M. Liebman , C. L. Mohler , and C. P. Staver , eds. Ecological Management of Agricultural Weeds. New York Cambridge University Press.

C. L. Mohler and A. E. Galford 1997. Weed seedling emergence and seed survival: separating the effects of seed position and soil modification by tillage. Weed Res. 37:147155.

S. Navntoft , S. D. Wratten , K. Kristensen , and P. Esbjerg 2009. Weed seed predation in organic and conventional fields. Biol. Cont. 49:1116.

A. D. Peacock , M. D. Mullen , D. B. Ringelberg , D. D. Tyler , D. B. Hedrick , P. M. Gale , and D. C. White 2001. Soil microbial community responses to dairy manure or ammonium nitrate applications. Soil Biol. BioChem. 33:10111019.

D. Pimentel , P. Hepperly , J. Hanson , D. Douds , and R. Seidel 2005. Environmental, energetic, and economic comparisons of organic and conventional farming systems. BioScience. 55:573582.

J. T. Sawma and C. L. Mohler 2002. Evaluating seed viability by an unimbibed seed crush test in comparison with the tetrazolium test. Weed Technol. 16:781786.

O. Schabenberger , B. E. Tharp , J. J. Kells , and D. Penner 1999. Statistical tests for hormesis and effective dosages in herbicide dose response. Agron. J. 91:713721.

B. J. Schutte , A. S. Davis , K. A. Renner , and J. Cardina 2008. Maternal and burial environment effects on seed mortality of velvetleaf and giant foxtail. Weed Sci. 56:834840.

G. A. F. Seber 1984. Multivariate Observations. New York John Wiley and Sons.

L. E. Steckel , C. L. Sprague , E. W. Stoller , L. M. Wax , and F. W. Simmons 2007. Tillage, cropping system, and soil depth effects on common waterhemp seed-bank persistence. Weed Sci. 55:235239.

J. R. Teasdale , R. W. Mangum , J. Radhakrishnan , and M. A. Cavigelli 2004. Weed seedbank dynamics in three organic farming crop rotations. Agron. J. 96:14291435.

C. P. A. Teo-Sherrell , D. A. Mortensen , and M. E. Keaton 1996. Fates of weed seeds in soil: a seeded core method of study. J. Appl. Ecol. 33:11071113.

T. A. Van Mourik , T. J. Stomph , and A. J. Murdoch 2005. Why high seed densities with buried mesh bags may overestimate depletion rates of soil seed banks. J. Appl. Ecol. 42:299305.

M. Wagner and N. Mitschunas 2008. Fungal effects on seed bank persistence and potential applications in weed biocontrol: a review. Basic Appl. Ecol. 9:191203.

S. Yao , H. Lan , and F. Zhang 2010. Variation of seed heteromorphism in Chenopodium album and the effect of salinity stress on the descendants. Ann. Bot. 105:10151025.

L. Zelles 1999. Fatty acid patterns of phospholipids and lipopolysaccharides in the characterisation of microbial communities in soil: a review. Biol. Fertil. Soils. 29:111129.

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Weed Science
  • ISSN: 0043-1745
  • EISSN: 1550-2759
  • URL: /core/journals/weed-science
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