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Interaction of Metribuzin and Phorate on ‘Atlantic’ and ‘Norchip’ Potato (Solanum tuberosum) Cultivars

Published online by Cambridge University Press:  12 June 2017

Harlene Hatterman-Valenti ,
Vince F. Lawson  and
Micheal D. K. Owen
Harlene Hatterman-Valenti
Affiliation:
Dep. Agron., Hortic. Dep. and Dep. Agron., Iowa State Univ., Ames, IA 50011
Vince F. Lawson
Affiliation:
Dep. Agron., Hortic. Dep. and Dep. Agron., Iowa State Univ., Ames, IA 50011
Micheal D. K. Owen
Affiliation:
Dep. Agron., Hortic. Dep. and Dep. Agron., Iowa State Univ., Ames, IA 50011
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Abstract

The effects of metribuzin herbicide and phorate insecticide were studied on summer harvest chipping-potatoes at Muscatine, IA, from 1989 to 1991. Phorate at 1.5 kg/ha increased total and ‘A’-size tuber yield and tuber specific gravity. Metribuzin applied at 0.56 kg/ha postemergence decreased total and ‘A’-size tuber yield. Metribuzin applied at 0.56 kg/ha preemergence and 0.28 kg/ha postemergence did not reduce Atlantic cultivar yield. Metribuzin did not affect ‘B’-size tuber yield or specific gravity. Phorate in combination with metribuzin did not increase plant injury or reduce tuber yield.

Keywords

Metribuzin, 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-onephorate, O,O-diethyl-S-[(ethylthio)methyl]phosphorodithioatepotato, Solanum tuberosum L.Specific gravitytuber sizeyield
Type
Research
Information
Weed Technology , Volume 8 , Issue 3 , September 1994 , pp. 461 - 464
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

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