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Agronomic effectiveness of partially acidulated phosphate rock



Agronomic effectiveness of partially acidulated phosphate rock



Pedosphere 4(2): 137-144



The effects of single superphosphate (SSP), fused magnesium phosphate (FMP) and partially acidulated rock phosphate (PAPR) on 8 field crops were compared on soils of various textures and pH (3.6 to 9.0). In 3 acid soils available P released from SSP decreased rapidly during the first 8 days and then increased slowly reaching a peak on the 50th day. In 3 alkaline soils the effects of PAPR were as good or better than those of SSP.

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Accession: 002560168

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