Author:
Pellerin Kristie J.,Webster Eric P.
Abstract
Imazethapyr applied to the soil at 0, 35, 53, 70, 87, 105, and 140 g ai/ha followed by (fb) early-postemergence (EPOST) or late-postemergence (LPOST) applications at 140, 105, 87, 70, 53, 35, and 0 g ai/ha, respectively, was evaluated for weed control, crop tolerance, and grain yield in imidazolinone-tolerant rice. In drill- and water-seeded rice, imazethapyr effectively controlled barnyardgrass 91 to 97% with a soil fb EPOST or LPOST application except when applied at 105 fb 35 g/ha EPOST at 49 d after late-postemergence treatment. Rice yields were 5,920 and 3,920 kg/ ha in the drill-seeded study with a single application of imazethapyr at 140 g/ha EPOST in 2000 and 2001, respectively. These yields were greater than or equal to those from treatments with two imazethapyr applications.
Publisher
Cambridge University Press (CUP)
Subject
Plant Science,Agronomy and Crop Science
Reference28 articles.
1. Effect of Application Rate, Weed Species, and Weed Stage of Growth on Imazethapyr Activity
2. Clearfield vs. Liberty: a comparison of two rice technologies that offer selectve red rice control;Ohmes;Proc. South. Weed Sci. Soc,2001
3. Evaluation of weed control and crop response to imazethapyr application timings in a water-seeded culture;Masson;Proc. Rice Tech. Work. Group,2000
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