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Effect of Herbicide Incorporation Methods on Shattercane (Sorghum bicolor) Control in Corn (Zea mays)

Published online by Cambridge University Press:  12 June 2017

Thomas A. Hayden  and
Orvin C. Burnside
Thomas A. Hayden
Affiliation:
Dep. Agron. Univ. Nebraska, Lincoln, NE 68583
Orvin C. Burnside
Affiliation:
Dep. Agron. Univ. Nebraska, Lincoln, NE 68583
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Abstract

Field experiments were conducted at Lincoln, NE, in 1983 and 1984 to determine the effectiveness of subsurface jet injection of herbicides on a simulated shattercane [Sorghum bicolor (L.) Moench # SORVU] infestation in corn (Zea mays L.). Alachlor [2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamide] and EPTC (S-ethyl dipropyl carbamothioate) plus dichlormid (2,2-dichloro-N,N-di-2-propenylacetamide), incorporated with a disc or applied from the subsurface and surface with a jet injector attached to a sweep plow, generally produced higher corn yields and shattercane control than herbicides applied with the sweep to the subsurface only. EPTC plus dichlormid controlled shattercane better than alachlor. Cultivation improved shattercane control by at least 10% in conjunction with most jet injection and disc-incorporated alachlor treatments. Cultivation increased corn yields by about 10 to 20% when averaged over all herbicides and application patterns. A subsurface plus surface herbicide injection system supplemented with cultivation would be a possible method of incorporating herbicides in reduced tillage to selectively control shattercane in corn.

Keywords

Alachlorconservation tillageEPTCreduced tillagesubsurface jet injectorSORVU
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 35 , Issue 3 , May 1987 , pp. 364 - 372
Copyright
Copyright © 1987 by the Weed Science Society of America 

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References

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