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Atrazine and Suspension Fertilizer Compatibility

Published online by Cambridge University Press:  12 June 2017

Louis J. Meyer ,
Larry S. Murphy  and
Oliver G. Russ
Louis J. Meyer
Affiliation:
Kansas State Univ., Manhattan, KS. 66506
Larry S. Murphy
Affiliation:
Kansas State Univ., Manhattan, KS. 66506
Oliver G. Russ
Affiliation:
Kansas State Univ., Manhattan, KS. 66506
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Abstract

Four field studies and two growth-chamber studies were used to evaluate the compatibility of 2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine (atrazine) in suspension fertilizer on corn (Zea mays L. ‘Pioneer 321’). Crop yields and tissue analyses were used to determine effects of atrazine on fertilizer availability. Visual and pictorial comparisons determined effects of fertilizer on atrazine phytotoxicity. Fertilizer-herbicide combinations compounded 230 days or sooner before application produced no change in atrazine phytotoxicity or fertilizer availability in growth chamber studies. Preplant-incorporated treatments displayed better fertilizer availability than preemergence treatments in the field. Preemergence treatments resulted in greater atrazine phytotoxicity under drought conditions. No problems of physical compatibility were encountered with the mixtures.

Type
Research Article
Information
Weed Science , Volume 21 , Issue 3 , May 1973 , pp. 217 - 220
Copyright
Copyright © 1973 Weed Science Society of America 

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References

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