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Seeding Date, Seeding Rate, and Row Spacing Affect Wheat (Triticum aestivum) and Cheat (Bromus secalinus)

Published online by Cambridge University Press:  12 June 2017

Jeffrey A. Koscelny,
Thomas F. Peeper,
John B. Solie and
Stanley G. Solomon Jr.
Jeffrey A. Koscelny
Affiliation:
Dep. Agron., Okla. State Univ., Stillwater, OK 74078
Thomas F. Peeper
Affiliation:
Dep. Agron., Okla. State Univ., Stillwater, OK 74078
John B. Solie
Affiliation:
Dep. Agric. Eng., Okla. State Univ., Stillwater, OK 74078
Stanley G. Solomon Jr.
Affiliation:
Dep. Agric. Eng., Okla. State Univ., Stillwater, OK 74078
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Abstract

Field experiments were conducted in Oklahoma to determine the effects of winter wheat seeding date and cheat infestation level on cultural cheat control obtained by increasing winter wheat seeding rates and decreasing row spacing. Seeding rate and row spacing interactions influenced cheat density, biomass, or seed in harvested wheat (dockage) at two of three locations. Suppressive effects on cheat of increasing wheat seeding rates and reduced row spacings were greater in wheat seeded in September than later. At two other locations, increasing seeding rate from 67 to 101 kg ha–1 or reducing row spacings from 22.5 to 15 cm increased winter wheat yield over a range of cheat infestation levels.

Keywords

Cheat, Bromus secalinus L. ♯ BROSEwheat, Triticum aestivum L. ‘2157’Winter wheatbiomasstillering

Information

Type
Research
Information
Weed Technology , Volume 5 , Issue 4 , December 1991, pp. 707 - 712
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

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