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Yellow sweetclover, green manure, and its residues effectively suppress weeds during fallow

Published online by Cambridge University Press:  20 January 2017

Robert E. Blackshaw ,
James R. Moyer ,
Ray C. Doram  and
A. Lyle Boswell
James R. Moyer
Affiliation:
Agriculture and Agri-Food Canada, Lethbridge Research Centre, PO Box 3000, Lethbridge, AB, Canada T1J 4B1
Ray C. Doram
Affiliation:
Agriculture and Agri-Food Canada, Lethbridge Research Centre, PO Box 3000, Lethbridge, AB, Canada T1J 4B1
A. Lyle Boswell
Affiliation:
Agriculture and Agri-Food Canada, Lethbridge Research Centre, PO Box 3000, Lethbridge, AB, Canada T1J 4B1
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Abstract

Improved fallow systems are needed to reduce the negative effects of increased soil erosion and reduced soil quality. Field experiments were conducted to determine weed suppression attained with yellow sweetclover grown as a green manure fallow replacement crop. Yellow sweetclover was undersown in field pea, flax, or Indian mustard and then killed in June of the following fallow year. Living yellow sweetclover competed strongly with weeds during the first fall and spring of fallow. Weed biomass accounted for <1 to 12% of the total plant biomass when yellow sweetclover was terminated in June. Yellow sweetclover residues remaining after termination of growth continued to provide excellent weed suppression. Weed densities in April before planting the succeeding wheat crop were 75 to 97% lower in yellow sweetclover than in untreated fallow treatments. Yellow sweetclover controlled the perennial weeds dandelion and perennial sowthistle, as well as the annuals kochia, flixweed, Russian thistle, and downy brome. Weed suppression was similar whether yellow sweetclover was harvested as hay or its residues were incorporated or left on the soil surface, suggesting that a portion of the weed suppression effect may be due to allelopathic compounds being released from decomposing yellow sweetclover. Results will be used to develop more sustainable agronomic practices in regions where fallow is still widely employed.

Keywords

Dandelion, Taraxacum officinale Weber in Wiggers TAROFdowny brome, Bromus tectorum L. BROTEfield pea, Pisum sativum L. ‘Trapper’field pennycress, Thlaspi arvense L. THLARflax, Linum usitatissimum L. ‘McGregor’flixweed, Descurainia sophia (L.) Webb. ex Prantl DESSOindian mustard = oriental mustard, Brassica juncea (L.) Czern. and Coss. ‘Lethbridge 221’ BRSJUkochia, Kochia scoparia (L.) Schrad. KCHSCperennial sowthistle, Sonchus arvensis L. SONARRussian thistle, Salsola iberica Sennen and Pau SASKRspring wheat, Triticum aestivum L. ‘Katepwa’yellow sweetclover, Melilotus officinalis (L.) Lam ‘Norgold’ MEUOFAllelopathycompetitionconservation fallowcover cropunderseedingweed managementBROTEBRSJUDESSOKCHSCMEUOFSASKRSONARTAROF
Type
Research Article
Information
Weed Science , Volume 49 , Issue 3 , June 2001 , pp. 406 - 413
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Aase, J. K. and Pikul, J. L. Jr. 1995. Crop and soil response to long-term tillage practices in the northern Great Plains. Agron. J. 87:652–256.Google Scholar
Al-Khatib, K., Libbey, C., and Boydston, R. 1997. Weed suppression with Brassica green manure crops in green pea. Weed Sci. 45:439–445.CrossRefGoogle Scholar
Anonymous. 1997. Sweetclover Production in Western Canada. Ottawa, ON: Agriculture Canada publication 1613. 14 p.Google Scholar
Badaruddin, M. and Meyer, D. W. 1990. Green-manure legume effects on soil nitrogen, grain yield, and nitrogen nutrition of wheat. Crop Sci. 30:819–825.Google Scholar
Biederbeck, V. O., Bouman, O. T., Looman, J., Slinkard, A. E., Bailey, L. D., Rice, W. A., and Janzen, H. H. 1993. Productivity of four annual legumes as green manure in dryland cropping systems. Agron. J. 85:1035–1043.Google Scholar
Blackshaw, R. E. and Lindwall, C. W. 1995. Management systems for conservation fallow on the southern Canadian prairies. Can. J. Soil Sci. 75:93–99.Google Scholar
Blackshaw, R. E., Moyer, J. R., Doram, R. C., Boswell, A. L., and Smith, E. G. 2001. Merits of biennial sweetclover (Melilotus officinalis) as a fallow replacement in semi-arid cropping systems. Agron. J. In press.CrossRefGoogle Scholar
Boydston, R. and Hang, A. 1995. Rapeseed (Brassica napus) green manure crop suppresses weeds in potato (Solanum tuberosum). Weed Technol. 9:669–675.Google Scholar
Chew, F. S. 1988. Biological effects of glucosinolates. Pages 155–181 In Cutler, H. G., ed. Biologically Active Natural Products: Potential Use in Agriculture. Washnigton, DC: American Chemical Society Symposium series 380.CrossRefGoogle Scholar
Cochran, V. L., Elliot, L. F., and Papendick, R. L. 1977. The production of phytotoxins from surface crop residues. Soil Sci. Soc. Am. J. 41:903–908.CrossRefGoogle Scholar
Enache, A. J. and Ilnicki, R. D. 1990. Weed control by subterranean clover used as a living mulch. Weed Technol. 4:534–538.CrossRefGoogle Scholar
Foster, R. K. 1990. Effect of tillage implement and date of sweetclover incorporation on available soil N and succeeding spring wheat yields. Can. J. Plant Sci. 70:269–277.Google Scholar
Guenzi, W. D. and McCalla, T. M. 1962. Inhibition of germination and seedling development by crop residues. Soil Sci. Soc. Am. Proc. 26:456–458.CrossRefGoogle Scholar
Holt, J. S. 1995. Plant responses to light: a potential tool for weed management. Weed Sci. 43:474–482.Google Scholar
Ingham, J. L. 1978. Phytoalexin production by high- and low-coumarin cultivars of Melilotus alba and Melilotus officinalis . Can. J. Bot. 56:223–233.Google Scholar
Larney, F. J., Lindwall, C. W., Izaurralde, R. C., and Moulin, A. P. 1994. Tillage systems for soil and water conservation on the Canadian prairies. Pages 305–328 In Carter, M. R., ed. Conservation Tillage in Temperate Agroecosystems. Boca Raton, FL: CRC Press.Google Scholar
Lehman, M. E. and Blum, U. 1997. Cover crop debris effects on weed emergence as modified by environmental factors. Allelopathy J. 4:69–88.Google Scholar
Liebman, M. and Dyck, E. A. 1993. Crop rotation and intercropping strategies for weed management. Ecol. Appl. 3:92–122.Google Scholar
McCalla, T. M. and Duley, F. L. 1948. Stubble mulch studies: effect of sweetclover extracts on corn germination. Science 108:163.Google Scholar
Moyer, J. R. and Huang, H. C. 1997. Effect of aqueous extracts of crop residues on germination and seedling growth of ten weed species. Bot. Bull. Acad. Sin. 38:131–139.Google Scholar
Moyer, J. R., Roman, E. S., Lindwall, C. W., and Blackshaw, R. E. 1994. Weed management in conservation tillage systems for wheat production in North and South America. Crop Prot. 4:243–259.Google Scholar
Pikul, J. L. Jr., Aase, J. K., and Cochran, V. L. 1997. Lentil green manure as fallow replacement in the semiarid northern Great Plains. Agron. J. 89:867–874.Google Scholar
Power, J. F., ed. 1987. The Role of Legumes in Conservation Tillage Systems. Ankeny, IA: Soil and Water Conservation Society. pp. 25–29.Google Scholar
Rice, E. L. 1984. Allelopathy. 2nd ed. New York: Academic Press. pp. 18–19.Google Scholar
Rice, W. A., Olsen, P. E., Baley, L. D., Biederbeck, V. O., and Slinkard, A. E. 1993. The use of annual legume green-manure crops as a substitute for summerfallow in the Peace River region. Can. J. Soil Sci. 73:243–252.Google Scholar
Schlegel, A. J. and Javlin, J. L. 1997. Green fallow for the central great plains. Agron. J. 89:762–767.CrossRefGoogle Scholar
Smika, D. E. 1990. Fallow management practices for wheat production in the Central Great Plains. Agron. J. 82:319–323.Google Scholar
Sparrow, S. D., Cochran, V. L., and Sparrow, E. B. 1993. Herbage yield and nitrogen accumulation by seven legume crops on acid neutral soils in a subarctic environment. Can. J. Plant Sci. 73:1017–1045.Google Scholar
Spratt, E. D., Strain, J. H., and Gorby, B. J. 1975. Summer fallow substitutes for western Manitoba. Can. J. Plant Sci. 55:477–484.Google Scholar
Steel, R.G.D. and Torrie, J. H. 1980. Principles and Procedures of Statistics. 2nd ed. New York: McGraw Hill. pp. 508–510.Google Scholar
Stute, J. K. and Posner, J. L. 1993. Legume cover crop options for grain rotations in Wisconsin. Agron. J. 85:1128–1132.CrossRefGoogle Scholar
Taylorson, R. B. and Borthwick, H. A. 1969. Light filtration by foliar canopies: significance for light controlled weed seed germination. Weed Sci. 17:48–51.Google Scholar
Teasdale, J. R. 1996. Contribution of cover crops to weed management in sustainable agricultural systems. J. Prod. Agric. 9:475–479.CrossRefGoogle Scholar
Teasdale, J. R. and Daughtry, C.S.T. 1993. Weed suppression by live and desiccated hairy vetch. Weed Sci. 41:207–212.Google Scholar
Turkington, R. A., Cavers, P. B., and Rempel, E. 1978. The Biology of Canadian Weeds. 29. Melilotus alba Desr. and M. officinalis (L.) Lam. Can. J. Plant Sci. 58:523–537.Google Scholar
Vandermeer, J. 1989. The Ecology of Intercropping. Cambridge, Great Britain: Cambridge University Press.Google Scholar
Weston, L. A. 1996. Utilization of allelopathy for weed management in agroecosystems. Agron. J. 88:860–866.Google Scholar
White, R. H., Worsham, D., and Blum, U. 1989. Allelopathic potential of legume debris and aqueous extracts. Weed Sci. 37:674–679.Google Scholar
Zentner, R. P., Campbell, C. A., Biederbeck, V. O., and Selles, F. 1996. Indianhead black lentil and green manure for wheat rotations in the brown soil zone. Can. J. Plant Sci. 76:417–422.Google Scholar