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Fall and Spring Herbicide Treatment for Minimum-Tillage Seeding of Alfalfa (Medicago sativa)

Published online by Cambridge University Press:  12 June 2017

G. W. Mueller-Warrant  and
D. W. Koch
G. W. Mueller-Warrant
Affiliation:
Dept. Plant Sci., Univ. of New Hampshire, Durham, NH 03824
D. W. Koch
Affiliation:
Dept. Plant Sci., Univ. of New Hampshire, Durham, NH 03824
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Abstract

Experiments were conducted at three locations to evaluate the efficacy of fall and spring herbicide treatments for vegetation control and enhancement of alfalfa (Medicago sativa L.) establishment. on a sward dominated by quackgrass [Agropyron repens (L.) Beauv.], fall and spring glyphosate [N- (phosphonomethyl) glycine] treatments were equally effective in reducing competition from quackgrass and in establishing alfalfa. on a mixed grass sward, spring and fall glyphosate treatment resulted in similar alfalfa yields with early spring seeding; however, alfalfa yields were lower with delayed seeding on fall-treated plots, compared with spring treatment, because of greater weed competition. Pronamide [3,5-dichloro(N-1,1-dimethyl-2-propynyl) benzamide] applied in the fall controlled perennial grasses, and when it was followed by paraquat (1,1′-dimethyl-4,4′-bipyridinium ion) in the spring controlled broadleaf weeds as well, resulting in greater alfalfa yields compared with pronamide alone. Alfalfa established more slowly in the paraquat-treated and check plots, than in glyphosate-treated plots.

Keywords

Agropyron repensglyphosateparaquatpronamide
Type
Research Article
Information
Weed Science , Volume 31 , Issue 3 , May 1983 , pp. 391 - 395
Copyright
Copyright © 1983 Weed Science Society of America 

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References

Literature Cited

1. Campbell, M. H. 1974. Effects of glyphosate on the germination and establishment of surface -sown pasture species. Aust. J. Exp. Agric. Anim. Husb. 14:557–560.Google Scholar
2. Kommedahl, T., Kotheimer, J. B., and Bernardini, J. V. 1959. The effects of quackgrass on germination and seedling development of certain crop plants. Weeds 7:1–12.CrossRefGoogle Scholar
3. Lynch, J. M. 1977. Phytotoxicity of acetic acid produced in the anaerobic decomposition of wheat straw. J. Appl. Bacteriol. 42:81–87.Google Scholar
4. Moshier, L. and Penner, D. 1978. Use of glyphosate in sod seeding alfalfa (Medicago sativa) establishment. Weed Sci. 26:163–166.CrossRefGoogle Scholar
5. Mueller-Warrant, G. W. and Koch, D. W. 1980. Establishment of alfalfa by conventional and minimum-tillage seeding techniques in a quackgrass dominant sward. Agron. J. 72:884–889.CrossRefGoogle Scholar
6. Patrick, Z. A. and Koch, L. W. 1958. Inhibition of respiration, germination, and growth by substances arising during the decomposition of certain plant materials in the soil. Can. J. Bot. 36: 621–647.Google Scholar
7. Russell, R. S., Cannell, R. Q., and Goss, M. J. 1975. Effects of direct drilling on soil conditions and root growth. Outlook Agric. 8:227–277.Google Scholar
8. Squires, N.R.W. and Elliot, J. G. 1975. The establishment of grass and fodder crops after sward destruction by herbicides. J. Br. Grassl. Soc. 30:31–40.CrossRefGoogle Scholar
9. Steward, V. and Welty, L. 1980. Crop management; Researchers renovated pastures in one year. Crops Soils 32(5):22.Google Scholar
10. VanKeuren, R. W. and Triplett, G. B. 1970. Seeding legumes into established grass swards. Proc. 11th. Int. Grassl. Cong. pp 131–134.Google Scholar
11. Welbank, P. J. 1963. Toxin production during decay of Agropyron repens (couch grass) and other species. Weed Res. 3:205–214.Google Scholar