Dissipation and potential crop injury for soil applied clomazone, chlorimuron, imazaquin, and imazethapyr

Cultural practices such as tillage and method of application can influence herbicide persistence, dissipation processes, and subsequent crop injury. In field studies, the influence of tillage system and herbicide application method on dissipation rate and potential for injury to corn (Zea mays) was investigated. Herbicides evaluated included clomazone (2-((2-chlorophenyl)methyl) -4,4-dimethyl-3-isoxazolidinone), imazaquin (2-(4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl) -3-quinolinecarboxylic acid), imazethapyr (($\pm$)-2-(4,5-dihydro-4-methyl-4-(1-methylethyl)-$ 5$-oxo-1H-imidazol-2-yl) -5-ethyl-3-pyridinecarboxylic acid), and chlorimuron (2-(((((4-chloro-6-methoxy-$ 2$-pyrimidinyl)amino) carbonyl) amino) sulfonyl) benzoic acid). Dissipation rates were monitored using chromatography and bioassay. Laboratory studies were conducted to investigate the contribution of photolysis in the dissipation of imazaquin and imazethapyr on two soil types.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Agronomy

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Curran, W.S.

Contributors dc:contributor

• Liebl, Rex A.

• Agriculture, Agronomy
• Chemistry, Agricultural

Statement dc:rights

• Copyright 1990 Curran, William Stevenson

Language dc:language

eng

Identifier

AAI9114216
(UMI)AAI9114216

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/22907