AMMONIUM SULFATE CAS N°: 7783-20-2

OECD SIDS
AMMONIUM SULFATE
4. ECOTOXICITY ID: 7783-20-2
DATE: 18.04.2006
TERRESTRIAL ORGANISMS
4.6.1 Toxicity to Sediment Dwelling Organisms
4.6.2 Toxicity to Terrestrial Plants
Species: other terrestrial plant: onion (allium cepa L. - Norstar 210B)
Endpoint:
growth
Expos. period: 84 day(s)
Method:
other: see Test Condition
Year: 1995
GLP:
no data
Result:
Yield (dry weight per pot) was greatest for 133 mg N per kg
soil. An inhibitory effect was found at 399 and 532 mg N per
kg soil, except for the sandy soil where only the 532 mg N
per kg soil ammonium sulfate was inhibitory.
Test condition: The effects of several nitrogen compounds on the growth of
onion was studied in 4 Canadian soils (pH range 5.0 to 6.6,
organic matter range 6-41.5 g/kg, sand or silty or sandy
loams, podzols or gleysols). Hydrated lime was added to the
lower pH soils to raise the pH to near 6.5, and P, K and Mg
were added to all soils to prevent deficiencies. After
seiving, air drying and moisture adjustment to 80% water
holding capacity, the soils were placed in 3.2 l plastic
pots, into which four 14 day old onion seedlings were
transplanted. Ammomium sulfate was added at 0, 133, 266,
399, and 532 mg N per kg soil. The growth chamber was
maintained at 22-18C and a 16-8 h day/night cycle, 65%
relative humidity, and 300µE m-2 s-1 photon flux density at
plant height. Immature plants were harvested 84 days after
transplanting. Bulbs, roots, and leaves were separated, and
fresh and dry weights of all plant parts were determined.
Reliability: (1) valid without restriction
Flag:
Critical study for SIDS endpoint
22-JUL-2004 (93)
Species:
Expos. period:
Unit:
other terrestrial plant: Avena sterilis spp Macrocarpa Mo.
21 day(s)
mg/l
Method:
other: see Test Condition
Year: 1989
GLP:
no data
Test substance: other TS: ammonium sulfate, no further details
Remark:
Result:
Test condition:
ppm is specified in the test, not ppm N. Note no control of
pH or ionic strength
No significant increase in germination rate compared with
the control. At 5000 ppm, an inhibitory effect was found.
The effects of several nitrogen compounds on the germination
of the first seed of each spikelet of Avena sterilis spp
Macrocarpa Mo. was studied at 15 C, or at alternating
temperatures of 15 C (16 hours) and 5 C (8 hours). 100 seeds
taken at random were placed in a covered Petrie dish,
wrapped in filter paper soaked in 20 ml of the test
solution. Concentrations studied are 0, 100, 1000, 2500, and
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