Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 547360
Title Soil Chemistry Aspects of Predicting Future Phosphorus Requirements in Sub-Saharan Africa
Author(s) Magnone, Daniel; Niasar, Vahid J.; Bouwman, A.F.; Beusen, A.H.W.; Zee, S.E.A.T.M. van der; Sattari, S.Z.
Source Journal of Advances in Modeling Earth Systems 11 (2019)1. - ISSN 1942-2466 - p. 327 - 337.
DOI https://doi.org/10.1029/2018MS001367
Department(s) WIMEK
Soil Physics and Land Management
Publication type Refereed Article in a scientific journal
Publication year 2019
Abstract Phosphorus (P) is a finite resource and critical to plant growth and therefore food security. Regional‐ and continental‐scale studies propose how much P would be required to feed the world by 2050. These indicate that Sub‐Saharan Africa soils have the highest soil P deficit globally. However, the spatial heterogeneity of the P deficit caused by heterogeneous soil chemistry in the continental scale has never been addressed. We provide a combination of a broadly adopted P‐sorption model that is integrated into a highly influential, large‐scale soil phosphorus cycling model. As a result, we show significant differences between the model outputs in both the soil‐P concentrations and total P required to produce future crops for the same predicted scenarios. These results indicate the importance of soil chemistry for soil‐nutrient modeling and highlight that previous influential studies may have overestimated P required. This is particularly the case in Somalia where conventional modeling predicts twice as much P required to 2050 as our new proposed model.
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