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FAQ #29848

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Does application technique affect availability of phosphorus fertilizer?

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Yes. Phosphorus is highly immobile in the soil and under high pH, calcareous soils, soluble forms of fertilizer P may quickly revert to insoluble forms rendering the P unavailable to the crop. Concentrating the application of P fertilizer through banding as close to the root zone as possible is the most efficient method of P fertilization. Broadcast application is the least efficient.

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