Efficiency of phosphorus resource use in Africa as defined by soil chemistry and the impact on crop production

By 2050 the global population will be 9.7 billion, placing an unprecedented burden on the world’s soils to produce extremely high food yields. Phosphorus (P) is crucial to plant growth and mineral fertilizer is added to soil to maintain P concentrations, however this is a finite resource, thus effic...

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Bibliographic Details
Published inEnergy procedia Vol. 123; pp. 97 - 104
Main Authors Magnone, Daniel, Bouwman, Alexander F., van der Zee, Sjoerd E.A.T.M., Sattari, Sheida Z., Beusen, Arthur H.W., Niasar, Vahid J.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.01.2017
Subjects
DPPS
modelling
phosphorus
soil
soil resources
soil resources
soil
modelling
phosphorus
DPPS
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Summary:By 2050 the global population will be 9.7 billion, placing an unprecedented burden on the world’s soils to produce extremely high food yields. Phosphorus (P) is crucial to plant growth and mineral fertilizer is added to soil to maintain P concentrations, however this is a finite resource, thus efficient use is critical. Plants primarily uptake P from a labile (available) P pool and not from the stable solid phase; transfer between these pools limits bioavailability. Transfer is controlled by soil properties which vary between soil types. The dynamic phosphorus pool simulator (DPPS) quantifies crop production and soil P relationships by utilising the transfer. This approach effectively models crop uptake from soil inputs, but it does not quantify the efficiency use. This study incorporates geochemical techniques within DPPS to quantify the efficiency of fertilizer-P use based on soil chemistry.
ISSN:1876-6102
1876-6102
DOI:10.1016/j.egypro.2017.07.264