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Use of phosphogypsum as an amendment for highly weathered soils



Use of phosphogypsum as an amendment for highly weathered soils



FIPR Publication (No 01-031-046): 111-136



Phosphogypsum is an amendment of great potential benefit for highly weathered soils. Not only does it ameliorate subsoil acidity by causing the precipitation of toxic Al and supplying Ca needed for root extension but also promotes infiltration into the soil surface resulting in a reduction in runoff and thus soil loss. Furthermore, the increased electrolyte concentration in the soil solution provided by the gypsum improves the hydraulic properties of the profile.

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Accession: 001997142

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