Johnsongrass (Sorghum halepense) control in soybeans (Glycine max) with metriflufen

Rogers, N.K. and Talbert, R.E. and Oliver, L.R. (1981) Johnsongrass (Sorghum halepense) control in soybeans (Glycine max) with metriflufen. Weed Science, 29 (3). pp. 291-296.

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Abstract

Field experiments were conducted in 1977 and 1978 to determine the susceptibility of S. halepense to metriflufen applied as presowing-incorporated, pre-em. or post-em. treatments. Rates of metriflufen applied presowing and pre-em. were 1.12, 2.24 or 3.36 kg/ha. Post-em. treatments consisted of 0.56, 1.12 or 1.68 kg metriflufen/ha + a non-ionic polyethylene glycol alkyl ester, each applied to S. halepense at growth stages of 30-38 cm, 60-75 cm or heading. S. halepense control increased with each increase in rate of soil-applied metriflufen with no differences in control between presowing and pre-em. treatments. S. halepense density was reduced by increased rates of metriflufen and soil-applied treatments in 1978 reduced densities by 62%. Presowing and pre-em. applications of 3.36 kg metriflufen/ha resulted in higher soyabean yields than did the lower rates. Trifluralin treatment gave similar results. Metriflufen applied to 30- to 38-cm tall S. halepense reduced stands by 60% in 1978, but stands increased by 53 and 71% in plots treated at the 60- to 75-cm or heading stages of growth. Soyabean tolerance to post-em. applications of metriflufen was excellent for all stages of growth and rates

Item Type: Article
Author Affiliation: Department of Agronomy, Arkansas University, Fayetteville, AR 72701, USA
Subjects: Plant Protection
Divisions: Sorghum
Soyabean
Depositing User: Ms K Syamalamba
Date Deposited: 08 Aug 2012 03:55
Last Modified: 08 Aug 2012 03:56
Official URL: http://www.jstor.org/stable/i386175
URI: http://eprints.icrisat.ac.in/id/eprint/7229

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