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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
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

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.

Type
Research
Copyright
Copyright © 1990 Weed Science Society of America 

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References

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