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Comparison of Six Cropping Systems for Yellow Nutsedge (Cyperus esculentus) Control

Published online by Cambridge University Press:  12 June 2017

P. E. Keeley
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Shafter, CA 93263
R. J. Thullen
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Shafter, CA 93263
J. H. Miller
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Shafter, CA 93263
C. H. Carter
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Shafter, CA 93263

Abstract

Six cropping/weed control systems were evaluated from 1978 to 1980 for the control of yellow nutsedge (Cyperus esculentus L.). Supplementing cultivation of cotton (Gossypium hirsutum L. ‘Acala SJ-2′) with either preplant applications of fluridone {1 - methyl - 3 - phenyl - 5 - [3 - (trifluoromethyl)phenyl] -4(1H-pyridinone} or two hoeings for 2 yr preceding cotton treated with DSMA (disodium methanearsonate) and MSMA (monosodium methanearsonate) reduced populations of viable yellow nutsedge tubers 98 to 99% within 3 yr. Dry- or wet - fallowing plus tillage after barley (Hordeum vulgare L. ‘Kombyne’), and double cropping potatoes (Solanum tuberosum L. ‘White Rose’) treated with EPTC (S-ethyl dipropylthiocarbamate) with soybeans [Glycine max (L.) Merr. ‘Williams’] treated with alachlor [2-chloro - 2′, 6’ - diethyl - N - (methoxymethyl)acetanilide] for 2 yr preceding cotton, reduced populations of tubers 98 to 99% within 3 yr. A similar reduction of tubers (97%) was obtained by double cropping potatoes with milo [Sorghum bicolor (L.) Moench. ‘NK- 265′] for 2 yr preceding cotton.

Type
Research Article
Copyright
Copyright © 1983 Weed Science Society of America 

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References

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