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Measured and computed concentration patterns of propyzamide in field soils
Author(s) -
Leistra M.,
Smelt J. H.,
Verlaat J. G.,
ZANDVOORT R.
Publication year - 1974
Publication title -
weed research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 74
eISSN - 1365-3180
pISSN - 0043-1737
DOI - 10.1111/j.1365-3180.1974.tb01501.x
Subject(s) - soil water , persistence (discontinuity) , environmental science , environmental chemistry , gas chromatography , soil science , chemistry , chromatography , geology , geotechnical engineering
Summary: The persistence of propyzamide in soil was studied by analysing soil samples taken at intervals two or three times after application in the spring to experimental fields. Single samples were taken from other fields. 8 to 12 months after autumn application. The concentrations were measured by electron‐capture gas chromatography. Persistence is expressed in first‐order dissipation rate constants and half‐life values. Data were measured and collected on the adsorption of propyzamide on soils, the soil characteristics and the weather conditions. Computations of the mobility of propyzamide in soil were carried out for simplified systems. Results of measurements and computations are compared.