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Comparison of Bioassays for Atrazine Residue in Soils 1
Author(s) -
Brattain R. L.,
Fay P. K.,
Lockerman R. H.
Publication year - 1983
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1983.00021962007500020009x
Subject(s) - bioassay , atrazine , petri dish , greenhouse , environmental science , weed , agronomy , environmental chemistry , biology , chemistry , pesticide , ecology , genetics
The usefulness of a chemical‐fallow cropping system may often depend on the use of a herbicide bioassay. Several research bioassays have been used to detect phytotoxic soil residues. Some of these bioassays are inexpensive and accurate but are often criticized because of space and time limitations. Four bioassay methods were compared using atrazine [2‐chloro‐4‐(ethylamino)‐6‐(isopropylamino)‐s‐triazine] treated soil. Nursery cone‐containers filled with atrazine treated soil required little space and provided inexpensive, accurate results when compared to Petri dish assay techniques. Greenhouse pots were as accurate as the conecontainers but were more expensive and required more space. The Chlorella sorokiniana algae bioassay was the least expensive, fastest, and most accurate.