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Phosphorus Forms and Cycling in Agricultural Soils of Southern Saskatchewan

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Phosphorus (P) is an essential nutrient and many crops require P fertilization for optimum yield, but loss of P from soils can cause water quality problems. Soil P exists in many chemical forms, which can influence P availability to crops and loss in runoff. This presentation will show some of Cade-Menum's research into soil P forms and cycling, including P loss in snowmelt runoff and legacy P in a long-term fertilizer reduction study.

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