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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Creamer, N. G.;
Dabney, S. |
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| Author Affiliation: | Department of Horticultural Science, North Carolina State University, Vernon James Reseach and Extension Center, 207 Research Station Rd., Plymouth, NC 27962; USDA-ARS National Sedimentation Laboratory, PO Box 1157, Oxford, MS 38655 |
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| Title: | Non-chemical methods for killing cover crops |
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| Section: | Papers and Abstracts Presented
Other records with the "Papers and Abstracts Presented" Section
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| Meeting Info.: | 49th Annual Meeting, Charlotte, NC, January 15-17, 1996 |
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| Source: | Southern Weed Science Society Proceedings. Vol. 49, 1996, p. 75. |
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| Publishing Information: | Champaign, IL: Southern Weed Science Society. |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Cover crops are being used in cropping systems to enhance biological activity, reduce soil erosion, and serve as a substitute for chemical inputs. Mechanical methods of suppressing cover crops are desirable when attempting to reduce chemical inputs. Mechanical methods can include mowing, rolling, flaming, partial rototilling, and undercutting. The method and cover crop growth stage can affect the percent kill, weed emergence through the dead residue, insect populations, and stand establishment of the cash crop. Partial rototilling is an effective suppression technique for well-established white clover used as a living mulch. In managing winter annual cover crops, percent cover crop kill from mechanical treatments generally increases as the cover crops mature. Mowing has been more effective than rolling or roll chopping when legumes have not yet reached late bloom and when stem lengths have remained less than 30 cm. Wheat after the watery kernel stage, and rye at 100% head to pollen shed have been reliably controlled by mowing. An undercutter designed to sever cover crop roots and leave the intact residue on the soil surface effectively killed most species that were in mid-to-late bloom. Mowing, rolling, and undercutting have recently been evaluated for management of summer cover crops. Rolling was effective in controlling mature millet and buckwheat in Virginia, however soybeans remained green. In North Carolina, seven broadleaf species were effectively controlled by mowing, undercutting controlled five of the species, but rolling provided little control. In contrast, undercutting provided the best control of the grasses, yielding greater than 90% kill for 3 of the 5 species, while rolling was effective on the most mature species, and mowing provided little control. Cover crops rolled or killed with the undercutter have been more effective at suppressing weeds than cover crops killed with a flail mower." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Creamer, N. G., and S. Dabney. 1996. Non-chemical methods for killing cover crops. South. Weed Sci. Soc. Proc. 49:p. 75. |
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MSU catalog number: SB 611 .S6 |
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