Registration Dossier
Registration Dossier
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EC number: 477-690-9 | CAS number: 874819-71-3
Toxicity to terrestrial plants
Administrative data
- Endpoint:
- toxicity to terrestrial plants: short-term
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2005-09-01 - 2006-08-24
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 006
- Report date:
- 2006
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: AA-FA-109
- Deviations:
- no
- GLP compliance:
- no
Test material
- Reference substance name:
- -
- EC Number:
- 477-690-9
- EC Name:
- -
- Cas Number:
- 874819-71-3
- Molecular formula:
- Hill formula: C6H9N4O3P CAS formula: C6H9N4O3P
- IUPAC Name:
- N-(diaminophosphoryl)-2-nitroaniline
- Test material form:
- solid: bulk
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test substrate
- Vehicle:
- yes
Test organisms
- Species:
- Triticum aestivum
- Plant group:
- Monocotyledonae (monocots)
- Details on test organisms:
- summer wheat, summer barley, summer rape and sugar beet
Study design
- Test type:
- seedling emergence and seedling growth test
- Study type:
- laboratory study
- Substrate type:
- natural soil
- Limit test:
- no
- Total exposure duration:
- 23 d
Test conditions
- Moisture:
- WK60 = 14, 4 g/ 100 g TS
- Reference substance (positive control):
- no
Results and discussion
Effect concentrations
- Key result
- Species:
- Triticum aestivum
- Duration:
- 23 d
- Dose descriptor:
- NOEC
- Effect conc.:
- > 0.44 mg/kg soil ww
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- phytotoxicity
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- A growth-inhibiting or phytotoxic effect caused by the urease hibitor P 101/04 can be excluded.
- Executive summary:
The plant toxicity of 2-NPT in mixtures with urea was tested on spring wheat, spring barley, spring rape and sugar beet.
The concentration of the inhibitor active substance in urea was 0.03; 0.06; 0.09; 0.12; 0.15 and 0.18 %. No phytotoxic effects of the urease inhibitor 2-NPT were observed.
In tests on the influence of 2-NPT on plant yields, no growth-inhibiting effect of 2-NPT was observed.
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