Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-25T04:21:17.110Z Has data issue: false hasContentIssue false

Quackgrass and Nitrogen Effects on Succeeding Crops in the Field

Published online by Cambridge University Press:  12 June 2017

Thor Kommedahl
Affiliation:
Department of Plant Pathology, University of Minnesota, St. Paul
K. M. Old
Affiliation:
Department of Plant Pathology, University of Minnesota, St. Paul
J. H. Ohman
Affiliation:
Department of Plant Pathology, University of Minnesota, St. Paul
E. W. Ryan
Affiliation:
Department of Plant Pathology, University of Minnesota, St. Paul

Abstract

Plant heights and seed yields of oats (Avena sativa L.), corn (Zea mays L.), and soybeans (Glycine max (L.) Merr.) were lower where these crops followed a heavy infestation of quackgrass (Agropyron repens (L.) Beauv.) than when they followed oats or fallow land. Application of ammonium nitrate (280 kg/ha) only partially corrected the adverse effect on yield of a previous quackgrass infestation. The effect of quackgrass persisted through the second growing season as measured by height and yield of wheat (Triticum aestivum L.) and compared with wheat after oats, corn, soybeans, or fallow, but the effect of nitrogen applied the first year only did not persist through the second year.

Type
Research Article
Copyright
Copyright © 1970 Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Kommedahl, T., Kotheimer, J. B. and Bernardini, J. V. 1959. The effect of quackgrass on germination and seedling development of certain crop plants. Weeds 7:112.Google Scholar
2. Kommedahl, T. and Ohman, J. H. 1960. The role of Agropyron repens in the seedling blight epidemiology of alfalfa and cereals. Minnesota Acad. Sci. Proc. 28:1015.Google Scholar
3. Ohman, J. H. and Kommedahl, T. 1964. Plant extracts, residues, and soil minerals in relation to competition of quackgrass with oats and alfalfa. Weeds 12:222231.Google Scholar
4. Patrick, Z. A., Toussoun, T. A. and Koch, L. W. 1964. Effect of crop-residue decomposition products on plant roots. Annu. Rev. Phytopathol. 2:267292.Google Scholar
5. Vanterpool, T. C. 1935. Studies on browning root rot of cereals III. Phosphorus-nitrogen relations of infested fields IV. Effects of fertilizer amendments V. Preliminary plant analyses. Can. J. Bot. (C) 13:220250.Google Scholar
6. Vanterpool, T. C. 1940. Studies on browning root rot of cereals VI. Further contributions on the effects of various soil amendments on the incidence of the disease in wheat. Can. J. Bot. (C) 18:240257.Google Scholar
7. Welbank, P. J. 1963. Toxin production during decay of Agropyron repens (couch grass) and other species. Weed Res. 3:205214.CrossRefGoogle Scholar
8. Welbank, P. J. 1964. Competition for nitrogen and potassium in Agropyron repens . Ann. Bot. (N.S.) 28:116.Google Scholar