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Subdoses of 2,4-D Choline Salt on Yield Components in Function of the Soybean Growth Stage

Author

Listed:
  • M. A. Rizzardi
  • T. Schneider
  • A. P. Rockenbach
  • S. T. Peruzzo
  • F. R. Lucio
  • G. R. Pereira

Abstract

Residues of herbicide tanks may cause damage to sensitive crops. The objective of this study is to evaluate the potential effects of subdoses of the herbicide 2,4-D choline salt on the vegetative and reproductive stages of soybean. The experiment was randomized blocks with a subdivided plot design and four replications. The application times were at V3 and R2 in the main plot. The herbicide 2,4-D choline salt was applied at the subdoses 0, 2.28, 4.56, 9.12, 18.24, 27.36 and 45.60 g a.e. ha-1 in the subplots. Phytotoxicity was evaluated at 3, 7 and 14 days after application (DAT) of treatments, soybean height at 14 and 28 DAT and at ripening, yield components at ripening, and grain yield. The phytotoxicity evaluation of 2,4-D choline salt evidenced that symptoms were only observed up to 14 days after application (DAT) of treatments. The 2,4-D did not affect any of the variables tested. Grain yield was not influenced by application times or subdoses.

Suggested Citation

  • M. A. Rizzardi & T. Schneider & A. P. Rockenbach & S. T. Peruzzo & F. R. Lucio & G. R. Pereira, 2024. "Subdoses of 2,4-D Choline Salt on Yield Components in Function of the Soybean Growth Stage," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 11(13), pages 199-199, April.
    • Handle: RePEc:ibn:jasjnl:v:11:y:2024:i:13:p:199
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    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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