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Early Application of Herbicides for No-Till Sorghum (Sorghum bicolor) in Wheat (Triticum aestivum) Stubble

Published online by Cambridge University Press:  12 June 2017

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

Research on the timing of herbicide application on no-till sorghum [Sorghum bicolor (L.) Moench.] planted into undisturbed winter wheat (Triticum aestivum L.) stubble was conducted at North Platte, NE, during 1980–1982. Applying some herbicides 41 and 25 days prior to planting sorghum maintained weed control, reduced sorghum injury, and increased sorghum yields when compared to application at planting. It was necessary to apply cyanazine {2-[[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino]-2-methylpropanenitrile} at 2.7 kg ai/ha 41 days prior to planting to avoid sorghum injury. Metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamide] + 2,4-D [(2,4-dichlorophenoxy)acetic acid] at 2.2 + 0.3 kg/ha reduced grass yields 97, 98, and 99%, while reduction with alachlor [2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamide] + 2,4-D at 2.8 + 0.3 kg/ha was 93, 41, and 63%, respectively, when herbicides were applied 0, 25, and 41 days prior to planting.

Keywords

Conservation tillageecofallowreduced tillageweed management systems
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 33 , Issue 5 , September 1985 , pp. 713 - 716
Copyright
Copyright © 1985 by the Weed Science Society of America 

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References

Literature Cited

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