Improving Phosphorus Management on Irrigated Potato

Assessed the effect of phosphorus management on potato yield and quality under Manitoba’s irrigated production systems.

IPNI-2003-CAN-MB19

13 May 2003

Project Description

    Limited research has been conducted to assess the effect of phosphorus management on potato yield and quality under Manitoba’s irrigated production systems. Tomasiewicz (1994) found no effect on potato yield or quality when P fertilizer was applied to a soil that would typically receive a P recommendation. Results of petiole testing indicated that petiole P concentration responded consistently to P fertilizer treatment, but that critical nutrient concentrations developed for other areas may not be directly applicable for Manitoba conditions.