Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/11007
Research center of Embrapa/Collection: Embrapa Meio Ambiente - Resumo em anais de congresso (ALICE)
Date Issued: 1992
Type of Material: Resumo em anais de congresso (ALICE)
Authors: CERDEIRA, A. L.
FORSTER, R.
Additional Information: ANTONIO LUIZ CERDEIRA, CNPMA; REINALDO FORSTER, CNPMA.
Title: Persistence of picloran in Brazilian soil.
Publisher: In: INTERNATIONAL WEED CONTROL CONGRESS, 1., 1992, Melbourne. Proceedings. Melbourne: Monash University, 1992.
Pages: p.117
Language: en
Keywords: Herbicide
Persistence.
Description: The persistence of the herbicide picloran (4-amino - 3,5,6 - trichloropicolinic acid) was studied in "Latossolo vermelho" soil (36% clay, 2% organic matter) in Jaguariuna county, Sao Paulo, Brazil. The herbicide was sprayed on plowed soil in March, 1989, at rates of 0.0; 0.56 and 1.12 g/ha. Picloran persistence was evaluated using bioassay with bean (Phaseolus vulagris L.). The data showed that the herbicide was very persistent up to 180 days, just at the raining season, October to December. At the same interval, from 180 to 240 days, typical visual symptoms disappeared, although there were still effects on height of plants, length of leaves and dry weight. No effect of the herbicide was detected after 300 days.
NAL Thesaurus: chemical control
beans
picloram
soil
weeds.
Data Created: 1993-11-24
Appears in Collections:Resumo em anais de congresso (CNPMA)

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