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Use of Winter Wheat (Triticum aestivum) Cultivars and Herbicides in Aiding Weed Control in an Ecofallow Corn (Zea mays) Rotation

Published online by Cambridge University Press:  12 June 2017

Robert E. Ramsel  and
Gail A. Wicks
Robert E. Ramsel
Affiliation:
Dep. Agron., Univ. Nebraska, West Central Res. and Ext. Ctr., North Platte, NE 69101
Gail A. Wicks
Affiliation:
Dep. Agron., Univ. Nebraska, West Central Res. and Ext. Ctr., North Platte, NE 69101
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Abstract

An experiment involving six winter wheat (Triticum aestivum L.) cultivars, an early-April herbicide application on wheat and on four dates after wheat harvest, and the growth of a subsequently planted corn (Zea mays L.) crop was conducted at North Platte, NE. ‘Centurk 78’ suppressed barnyardgrass [Echinochloa crus-galli (L.) Beauv. # ECHCG] more than ‘Bennett’ and ‘Eagle’ in the growing wheat and after wheat harvest in July, but there were no differences in weed yield among cultivars in corn planted 11 months later. Herbicides applied to the tillering wheat in early April improved weed control in wheat and the subsequent corn crop. Also, herbicides were applied 5, 25, 45, and 300 days after wheat harvest. Weed growth increased and soil water decreased as spraying dates were delayed. Herbicides applied 5 days after harvest did not maintain adequate weed control in the corn planted 11 months after wheat harvest and low corn yield resulted. Plots receiving herbicides 300 days after wheat harvest had the least soil water in the fall after wheat harvest but the best weed control in corn and highest corn yields because of better weed control in corn.

Keywords

Conservation tillageecofarmingno-till weed management
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 36 , Issue 3 , May 1988 , pp. 394 - 398
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

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