Barnyardgrass (Echinochloa crus-galli) control in dry-seeded rice (Oryza sativa) with soil-applied and postemergence herbicide programs

被引:28
作者
Jordan, DL [1 ]
Miller, DK [1 ]
Crawford, SH [1 ]
机构
[1] Louisiana State Univ, Ctr Agr, NE Res Stn, St Joseph, LA 71366 USA
关键词
molinate; S-ethyl hexahydro-1H-azepine-1-carbothioate; pendimethalin, N-(1-ethyl-propyl)-3,4-dimethyl-2,6-dinitrobenzenamine; propanil, N-(3,4-dichlorophenyl)propanamide; quinclorac, 3,7-dichloro-8-quinolinecarboxylic acid; thiobencarb; S-[(4-chlorophenyl)methyl]diethyl-carbamothioate; barnyardgrass; Echinochloa crus-galli (L.) Beauv. #(3) ECHCG; estimated economic return; weed management; pendimethalin; propanil; quinclorac; ECHCG;
D O I
10.1017/S0890037X00042597
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
A study was conducted from 1994 through 1996 to evaluate barnyardgrass control, rice yield, and estimated economic returns with delayed preemergence (DPRE) applications of pendimethalin, quinclorac, thiobencarb, pendimethalin plus quinclorac, and pendimethalin plus thiobencarb applied alone or followed by postemergence (POST) applications of propanil or propanil plus molinate. Late-season barnyardgrass control with pendimethalin plus quinclorac was greater than with pendimethalin, quinclorac, thiobencarb, or pendimethalin plus thiobencarb. Control with pendimethalin, quinclorac, and pendimethalin plus thiobencarb exceeded that with thiobencarb. Propanil plus molinate controlled barnyardgrass more effectively than propanil. Quinclorac and pendimethalin plus quinclorac were the only DPRE herbicide treatments where yield and estimated economic returns were not improved by POST herbicides.
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页码:69 / 73
页数:5
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