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Impact à long terme du travail du sol sur le cycle biogéochimique du phosphore : analyse de l'essai L'Acadie (Québec, Canada) et modélisation

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Figure

Fig. 2-1 The P cycle in the biosphere (Pédro 2012)
Fig. 2-2 Historical sources of phosphorus for use as fertilizers, including manure, human  excreta, guano and phosphate rock (1800–2000) (Cordell et al
Table 2-2 Common soil organic phosphorus compounds (Turner et al. 2005)  Functional class  Example compound  Structure
Fig. 2-3 Reversible relationships between P pools (Barber 1995)
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