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A Sprinkler System for Research on Applying Herbicides in Irrigation Water

Published online by Cambridge University Press:  12 June 2017

A. G. Ogg Jr.
A. G. Ogg Jr.*
Affiliation:
Agric. Res., Sci. Ed. Admin, U.S. Dep. Agric., Irrigated Agric. Res. and Ext. Center, Prosser, WA 99350
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Abstract

A sprinkler system was developed that applied water to quadrant-shaped plots with a uniformity coefficient greater than 90% for any 2-m zone between 3 and 9 m from sprinklers that were located at the vertex of the quadrant. With this sprinkler system, many variables that affect the performance and behavior of herbicides applied in irrigation water can be studied. When applied through this sprinkler system in 1.4 cm of water, alachlor [2-chloro-2′,6′-diethyl-N-(methoxymethyl)acetanilide] at 3.3 kg/ha, EPTC (S-ethyl dipropylthiocarbamate) at 3.3 kg/ha, EPTC + trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine) at 3.3 + 0.6 kg/ha, and EPTC + oryzalin (3,5-dinitro-N4,N4-dipropylsulfanilamide) at 3.3 + 0.8 kg/ha controlled barnyardgrass [Echinochloa crus-galli (L.) Beauv.], common lambsquarters (Chenopodium album L.), and hairy nightshade (Solanum sarachoides Sendt.) selectively in beans (Phaseolus vulgaris L. ‘Pinto 114’).

Keywords

Phaseolus vulgarisweed controlalachlorEPTCdinitroanilines
Type
Research Article
Information
Weed Science , Volume 28 , Issue 2 , March 1980 , pp. 201 - 203
Copyright
Copyright © 1980 by the Weed Science Society of America 

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References

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