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Main Title Mathematical Model of Plant Uptake and Translocations of Organic Chemicals: Application to Experiments.
Author Boersma, L. ; McFarlane, C. ; Lindstrom, F. T. ;
CORP Author Oregon State Univ., Corvallis. Dept. of Soil Science.;Corvallis Environmental Research Lab., OR.
Publisher c1991
Year Published 1991
Report Number EPA/600/J-92/347;
Stock Number PB93-106946
Additional Subjects Mathematical models ; Plants(Botany) ; Organic compounds ; Soil chemistry ; Transpiration ; Roots ; Soybeans ; Leaves(Botany) ; Reprints ; Glycine max ; Bromacil
Library Call Number Additional Info Location Last
NTIS  PB93-106946 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 12p
Uptake, transport, and accumulation of organic chemicals by plants are influenced by characteristics of the plant and properties of the chemical, soil, and environmental conditions. A mathematical model for uptake of organic chemicals by plants was calibrated by application to data from experiments in which the uptake of bromacil (C6H13BrN2O2) by soybean (Glycine max (L.) Merr.) plants was measured. The model was initially formulated by defining a generic plant as a set of adjacent compartments representing the major pools and pathways involved in transport and accumulation of water solutes. For this application the plant consists of one root, three stem, and three leaf compartments, with each compartment being subdivided into xylem, phloem, and storage. The model was calibrated with respect to storage coefficients that quantify rate of transport to and from storage. The model satisfactorily predicted the observed uptake and distribution patterns for bromacil in soybean plants at the stage of growth and under the environmental conditions of the experiments.