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Updated: Jun 24, 2026

Assessment of Labile Organic Carbon in Soil Using Sequential Fumigation Incubation Procedures
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Published on: October 29, 2016

Some factors causing variability in 1,2-dibromo-3-chloropropane concentrations in soil.

M V McKenry, P Naylor

    Journal of Nematology
    |March 21, 2009
    PubMed
    Summary

    1,2-dibromo-3-chloropropane (DBCP) moved unevenly in soil, with concentrations decreasing due to factors like low temperature and soil additives. Its persistence varied, being least in the topsoil and when irrigation was absent.

    Keywords:
    degradationsoil temperaturesorption

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    Area of Science:

    • Soil science
    • Environmental chemistry
    • Pesticide science

    Background:

    • 1,2-dibromo-3-chloropropane (DBCP) is a soil fumigant nematicide.
    • Understanding DBCP's soil behavior is crucial for its effective and safe application.

    Purpose of the Study:

    • To investigate the soil movement and persistence of DBCP.
    • To identify factors influencing DBCP's distribution and degradation in soil.

    Main Methods:

    • Soil atmosphere sampling was used to measure DBCP concentrations.
    • Henry's Constant for DBCP was determined at various temperatures.
    • Factors such as soil temperature, lime, roots, application method, and irrigation were analyzed.

    Main Results:

    • DBCP exhibited nonuniform soil movement compared to more volatile fumigants.
    • Low soil temperature, lime, and roots reduced DBCP concentrations.
    • Application via water or chisel injection led to movement below 120 cm.
    • DBCP was least persistent in the upper 15 cm and without subsequent irrigation.

    Conclusions:

    • DBCP's soil behavior is influenced by multiple environmental and application factors.
    • Soil atmosphere sampling provides insights into DBCP's fate.
    • Knowledge of DBCP's movement and persistence aids in risk assessment and management strategies.