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Statement to Kösler et al. 2019 and 2020 regarding the evaluation of the ecotoxicity of nitrification inhibitors using terrestrial and aquatic test organisms
Environmental Sciences Europe volume 32, Article number: 111 (2020)
Abstract
In this paper, the correct composition of Vizura is given and a note that the founded results concerning ecotoxicity of Vizura are of no relevance for the recommended application rates for Vizura.
Statement
-
1.
In both papers of Kösler et al. [1, 2] the information on the product composition of Vizura is incorrect. Vizura does not contain 1,2,4-triazol [1] (corrected in [2]) nor 1H-pyrazole [2]. Vizura is a liquid formulation of 14% w/w 3,4-dimethylpyrazole phosphate in phosphoric acid and water.
-
2.
Kösler et al. [1] are not using the recommended use rate of Vizura. The minimum test concentrations used in the different ecotoxicity tests in Kösler et al. [1] are higher than the DMPP concentration applied in agricultural practice with Vizura. Therefore, the results of Kösler et al. [1] concerning ecotoxicity of Vizura are of no relevance for the recommended application rates for Vizura used according to good agricultural practice.
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Abbreviations
- DMPP:
-
3,4-Dimethylpyrazole phosphate
References
Kösler JE, Calvo OC, Franzaring J, Fangmeier A (2019) Evaluating the ecotoxicity of nitrification inhibitors using terrestrial and aquatic test organisms. Environ Sci Eur 31:91
Kösler JE, Calvo OC, Franzaring J, Fangmeier A (2020) Correction to: Evaluating the ecotoxicity of nitrification inhibitors using terrestrial and aquatic test organisms. Environ Sci Eur 32:56
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GP initiated the text. Both authors made substantial and equal contributions to the initial draft. Both authors read and approved the final manuscript.
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Pasda, G., Schmid, M. Statement to Kösler et al. 2019 and 2020 regarding the evaluation of the ecotoxicity of nitrification inhibitors using terrestrial and aquatic test organisms. Environ Sci Eur 32, 111 (2020). https://doi.org/10.1186/s12302-020-00389-4
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DOI: https://doi.org/10.1186/s12302-020-00389-4