OVERVIEW
Proper applications of phosphorus (P) and sulfur (S) are critical for optimum canola yields.
Blends of MAP + AS (ammonium sulfate) are commonly used as a primary fertilizer source in canola-growing regions of North America.
MicroEssentials® SZ® (12-40-0-10S-1Zn) is a proprietary fertilizer that combines nitrogen (N), phosphorus (P), sulfur (S) and zinc (Zn) fused into one nutritionally balanced granule.
Growing conditions in North Dakota and the Canadian Prairie Provinces varied greatly across 2011, 2012 and 2013.
TRIAL DETAILS
Years: 2011-2013
Crop: Canola (Brassica napus)
Locations: 24 locations across the U.S. and Canada
United States – ND
Canada – AB, MB, SK
Data Source: Field studies conducted by third-party, independent researchers.
Experimental Design: Small-plot RCBD with 4 replications.
Cropping Conditions::
P Rate: 33 lbs P₂O₅/ac
S Rate: MAP + AS: 15 lbs S/ac
MicroEssentials® SZ®: 8.25 lbs S/ac
Zn Rate: 0.825 lb Zn/ac
Application Timing and Method: Fertilizer was applied with the seed at planting.
RESULTS
SUMMARY
Across 2011, 2012 and 2013, MicroEssentials® SZ® increased yield over the MAP+AS blend by 0.6 bu/ac, 0.8 bu/ac and 2.4 bu/ac, respectively.
The 2.4 bu/ac (5.1%) yield advantage with MicroEssentials® SZ® in 2013 demonstrates its superior performance under excellent growing conditions.
The three-year average across 24 trials shows the statistically significant yield advantage of 1.5 bu/ac with MicroEssentials® SZ® compared to MAP + AS. This data demonstrates the value of uniform nutrient distribution and season-long sulfur availability provided by MicroEssentials®.
