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Low-Volume Application of Propazine and Atrazine to Sorghum

Published online by Cambridge University Press:  12 June 2017

E. W. Chamberlain
Affiliation:
Geigy Agricultural Chemicals, 751 Roosevelt Road, Bldg. 7, Suite 312, Glen Ellyn, Ill. 60137
A. F. Wiese
Affiliation:
Texas A&M Univ., Southwestern Great Plains Res. Center, Bushland, Texas 79012
D. F. Owen
Affiliation:
Texas Tech Univ. Res. Center, Pantex, Texas 79069
A. J. Becton
Affiliation:
Regional Sales Manager, Geigy Agr. Chemicals, 8383 Stemmons Freeway, Suite 330 Empire Center, Dallas, Texas 75207
W. E. Turner
Affiliation:
Geigy Agr. Chemicals, 5512 37th St., Lubbock, Texas 79407

Abstract

Over a 3-year period, pigweed (Amaranthus sp.) was successfully controlled in grain sorghum (Sorghum bicolor (L.) Moench) with preemergence aerial application of 2-chloro-4, 6-bis(isopropylamino)-s-triazine (propazine) and postemergence application of 2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine (atrazine) in 4.7 to 47 L/ha of various carriers. Equally good pigweed control was obtained with ground application of the herbicides with as little as 37 L/ha carrier. Liquid formulations of the two herbicides gave results comparable to an 80% wettable powder formulation.

Type
Research Article
Copyright
Copyright © Weed Science Society of America 

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References

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