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Cultivation and Herbicides for Weed Control in Sweet Potato (Ipomoea batatas)

Published online by Cambridge University Press:  12 June 2017

Norman C. Glaze  and
Melvin R. Hall
Norman C. Glaze
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., Univ. Ga, Coastal Plain Exp. Stn., Tifton, GA 31793
Melvin R. Hall
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., Univ. Ga, Coastal Plain Exp. Stn., Tifton, GA 31793
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Abstract

Alachlor, chloramben, cinmethylin, diphenamid, fluazifop, fluazifop-P, metolachlor, metribuzin, napropamide, oryzalin, and sethoxydim were applied on transplanted sweet potato at Tifton, GA, during 1982 to 1985. The weeds most prevalent were large crabgrass, Florida pusley, smallflower morningglory, and yellow nutsedge. No significant phytotoxicity was observed from any herbicide treatment over the 4 yr. Cultivation at 4 wk is advantageous to eliminate early flushes of weeds which escape control and reform the beds. Alachlor or metolachlor at 4.5 and 3.4 kg ha-1, respectively, and metribuzin controlled weeds best. Although no serious phytotoxicity was evident, these treatments tended to cause lowered yields of marketable roots while marginally affecting total yields in most cases. Metribuzin was the only compound which controlled late-season broadleaf weeds such as smallflower morningglory effectively.

Keywords

chloramben, 3-amino-2,5-dichlorobenzoic aciddiphenamid, N,N-dimethyl-α-phenyl benzeneacetamidefluazifop, (±)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acidnapropamide, N,N-diethyl-2-(1-naphthalenyloxy)propanamideoryzalin, 4-(dipropylamino)-3,5-dinitrobenzenesulfonamidesweet potato, Ipomoea batatas (L.) Poir./Lam. cv. ‘Georgia Jet’Florida pusley, Richardia scabra L. ♯3 RCHSClarge crabgrass, Digitaria sanguinalis (L.)Scop. ♯ DIGSAyellow nutsedge, Cyperus esculentus L. ♯ CYPESWeed managementalachlormetolachlormetribuzinIAQTACYPES
Type
Research
Information
Weed Technology , Volume 4 , Issue 3 , September 1990 , pp. 518 - 523
Copyright
Copyright © 1990 Weed Science Society of America 

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References

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