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Effects of Weeds and Herbicides on Sweetpotato (Ipomoea batatas) Transplant Production Using Polyethylene Bed Covers

Published online by Cambridge University Press:  12 June 2017

David W. Monks ,
Jonathan R. Schultheis  and
Robert J. Mills
David W. Monks
Affiliation:
Dep. Hortic. Sci., N.C. State Univ., Raleigh, NC 27695
Jonathan R. Schultheis
Affiliation:
Dep. Hortic. Sci., N.C. State Univ., Raleigh, NC 27695
Robert J. Mills
Affiliation:
Dep. Hortic. Sci., N.C. State Univ., Raleigh, NC 27695
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Abstract

Studies determined the effect of common lambsquarters, goosegrass, and a mixture of these on ‘Beauregard’ and ‘Jewel’ sweetpotato transplant production with or without polyethylene bed covers. Effects of herbicides on Beauregard in propagation beds were also studied. Black and infrared transmissible (IRT) plastic covers gave near 100% control of goosegrass and common lambsquarters, resulting in the greatest number and weight of Jewel transplants per plot. Common lambsquarters reduced transplant number and weight per plot with Jewel under clear plastic covers when compared with black and IRT plastic covers. Beauregard transplant number was not affected by row cover treatment. However, with data combined over all covers, Beauregard transplant weight per plot was lowest for treatments with weeds compared to weed-free plots. With the exception of DCPA, no significant (10% or greater) injury to Beauregard was observed with diphenamid, napropamide, chloramben, or chloramben plus fluazifop.

Keywords

Chloramben, 3-amino-2,5-dichlorobenzoic acidDCPA, dimethyl 2,3,5,6-tetrachloro-1,4-benzenedicarboxylatediphenamid, N,N-dimethyl-α-phenyl benzeneacetamidefluazifop, (±)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acidnapropamide, N,N-diethyl-2-(1-naphthalenyloxy)propanamidecommon lambsquarters, Chenopodium album # CHEALgoosegrass, Eleusine indica (L.) Gaertn. # ELEINsweetpotato, Ipomoea batatas (L.) Lam., ‘Beauregard,’ ‘Jewel.’Competitioninterferencenon-chemical weed controlpropagation bedschlorambenDCPAdiphenamidfluazifopnapropamideCHEALELEIN
Type
Research
Information
Weed Technology , Volume 10 , Issue 2 , June 1996 , pp. 273 - 277
Copyright
Copyright © 1996 by the Weed Science Society of America 

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