Phosphorus availability is maximum at soil pH of __________

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Phosphorus availability is maximum at soil pH of __________ Answer: 6.0-7.5

Phosphorus availability is maximum at a soil pH range of 6.0 to 7.5. In this slightly acidic to neutral range, phosphorus is less likely to be tied up by other elements like iron, aluminum, or calcium, which can form insoluble compounds in both more acidic and more alkaline soils.