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Effects of Bluegrass Stand and Watering Regime on Control of Crabgrass with Preemergence Herbicides

Published online by Cambridge University Press:  12 June 2017

Eliot C. Roberts ,
Flave E. Markland  and
Harold M. Pellett
Eliot C. Roberts
Affiliation:
Department of Horticulture, Iowa State University
Flave E. Markland
Affiliation:
Department of Horticulture, Iowa State University
Harold M. Pellett
Affiliation:
University of Nebraska
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Abstract

Crabgrass (Digitaria spp.) control by different herbicides in field experiments varied from 84 to 100%. These extremes were not significantly different. Greenhouse studies showed that increased moisture content in soils may increase the growth rate of crabgrass seedlings so that they may escape herbicidal injury. Effects of herbicides on root stunting were similar in both dry and wet soils, indicating immobility of the herbicides under these experimental conditions. Competition between mature bluegrass plants and crabgrass seedlings was an important determinant of effective crabgrass control with preemergence herbicides.

Type
Research Article
Information
Weeds , Volume 14 , Issue 2 , April 1966 , pp. 157 - 161
Copyright
Copyright © 1966 Weed Science Society of America 

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References

Literature Cited

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