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    Processes governing phosphorus availability in temperate soils

    Frossard, E; Condron, L; Oberson, A; Sinaj, S; Fardeau, J
    Abstract
    Phosphorus losses from agricultural soil to water bodies are mainly related to the excessive accumulation of available P in soil as a result of long-term inputs of fertilizer P. Since P is a nonrenewable resource, there is a need to develop agricultural systems based on maximum P use efficiency with minimal adverse environmental impacts. This requires detailed understanding of the processes that govern the availability of P in soil, and this paper reviews recent advances in this field. The first part of the review is dedicated to the understanding of processes governing inorganic P release from the solid phase to the soil solution and its measurement using two dynamic approaches: isotope exchange kinetics and desorption of inorganic P with an infinite sink. The second part deals with biologically driven processes. Improved understanding of the abiotic and biotic processes involved in P cycling and availability will be useful in the development of effective strategies to reduce P losses from agricultural soils, which will include matching crop needs with soil P release and the development of appropriate remediation techniques to reduce P availability in high P status soils.... [Show full abstract]
    Keywords
    phosphorus; temperate soils; available P
    Date
    2000
    Type
    Journal Article
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    • Department of Soil and Physical Sciences [513]
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    DOI
    https://doi.org/10.2134/jeq2000.00472425002900010003x
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    Copyright © 2000 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
    Citation
    Frossard, E., Condron, L. M., Oberson, A., Sinaj, S., & Fardeau, J. C. (2000). Processes governing phosphorus availability in temperate soils. Journal of Environmental Quality, 29(1), 15-23.
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