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Influence of Tillage, Row Spacing, and Atrazine on Sorghum and Weed Yields from Nonirrigated Sorghum Across Nebraska

Published online by Cambridge University Press:  12 June 2017

O. C. Burnside ,
G. A. Wicks  and
C. R. Fenster
O. C. Burnside
Affiliation:
Dept. of Agronomy at Lincoln
G. A. Wicks
Affiliation:
North Platte Expt. Sta. at North Platte
C. R. Fenster
Affiliation:
Box Butte Expt. Sta. at Alliance, University of Nebraska
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Abstract

Experiments were conducted at Lincoln, North Platte, and Alliance, Nebraska, during 1961 and 1962 to determine the effect of tillage, atrazine, hand-weeding, and row spacings on RS 501 sorghum and weed yields. Combinations of tillage, narrow row spacings, and preemergence 2-chloro-4-ethylamino-6-isoproplyamino-s-triazine (atrazine) treatments gave more dependable weed control than any one alone. Sorghum yields increased and weed yields decreased with tillage and atrazine treatments. Preemergence atrazine applications as low as 1 lb/A gave higher sorghum yields and lower weed yields than postemergence atrazine applications of 2 to 4 lb/A. Preemergence atrazine applications should be reduced on lighter soils because atrazine gives more effective weed control and increased sorghum injury on such soils. There was a 1 bu/A decrease in sorghum yield for each 50 lb/A of weeds present.

Type
Research Article
Information
Weeds , Volume 12 , Issue 3 , July 1964 , pp. 211 - 215
Copyright
Copyright © 1964 Weed Science Society of America 

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References

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