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Interval between sequential applications of asulam for regrowth control of torpedograss (Panicum repens L.)
- Source :
- Weed Biology and Management. 2:92-97
- Publication Year :
- 2002
- Publisher :
- Wiley, 2002.
-
Abstract
- Two field experiments each conducted during a 1 year period at the Agricultural Experiment Farm, University of the Ryukyus, Japan evaluated the interval needed between sequential applications of asulam (3 kg ai ha−1) for successful control of torpedograss (Panicum repens L.). Regrowth of torpedograss from rhizomes was lowest when asulam was applied at 40-day intervals. Application at intervals of 70 days or longer completely controlled above-ground shoots but not regrowth from rhizomes. Above-ground biomass of torpedograss regrowth was 7- and 49-fold higher when asulam was applied at 70 and 100 day intervals, respectively, compared with 40-day intervals. Asulam applied three times at 40-day intervals starting 40 days after land preparation provided almost total torpedograss control 1 year after the initial application.
Details
- ISSN :
- 14456664 and 14446162
- Volume :
- 2
- Database :
- OpenAIRE
- Journal :
- Weed Biology and Management
- Accession number :
- edsair.doi...........508245af8d4a5d8e1b62c1a8d1597515