Effect of Repeated Annual Use of Atrazine on Corn1
- O. C. Burnside,
- G. A. Wicks and
- C. R. Fenster2
Normal use rates of atrazine (2-chloro-4-ethylamino-6-isopropylamino-s-triazine) for weed control in corn (Zea mays L.) applied for 3 consecutive years at three locations across Nebraska had no significant effect on corn yield or eight other corn yield components. Annual application rates of 9 kg/ha of atrazine during 1963–1965 caused a 21, 23, and 2% corn yield reduction in 1965 at Alliance, North Platte, and Lincoln, respectively. Generally there is a wide margin of safety when using atrazine to control annual weeds in corn.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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