February 2016

MicroEssentials® SZ® Winter Canola Fertility in the Southern Plains


Evaluate the yield response of winter canola to MicroEssentials® SZ® (12-40-0-10S-1Zn) compared to MAP (11-52-0) + AS (21-0-0-24S) + ZnSO₄ (0-0-0-16.5S-36Zn).


  • Winter canola is typically grown in the south-central region of the United States.

  • 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® is a premium P fertilizer that contains nitrogen (N), P, S and zinc (Zn) fused into one nutritionally balanced granule, leading to uniform nutrient distribution.

  • MicroEssentials® SZ® contains two forms of S. Sulfate S (SO₄²⁻) is available early in the season while elemental S provides season-long availability.


Locations and Crop Management:

Crop: Canola (Brassica rapa cv. 'Canola')

Year: 2015–2016

Data Source: Field studies conducted by third-party, independent and university researchers.

Experimental Design: Small-plot RCBD with 4 replications.

Cropping Conditions:

P Rate: 33 lbs P₂O₅/ac

K Rate: As recommended by the soil test.

Application Timing: Preplant

Application Method: Broadcast incorporate.


Canola Yield Response

LOCATIONS: 6 trials across the United States – KS, OK, TX


  • MicroEssentials® SZ® showed a 5.4 bu/ac (13.3%) yield advantage over MAP.

  • MicroEssentials® SZ® increased yield by 4.1 bu/ac (9.8%) over MAP + AS + ZnSO₄.

  • This research demonstrates the benefits of balanced crop nutrition and a season-long supply of S from MicroEssentials® SZ®.

©2020 The Mosaic Company. All rights reserved. AgriFacts, MicroEssentials, SZ, Fusion, Aspire and NutriForm are registered trademarks of The Mosaic Company.

Individual results may vary, and performance may vary from location to location and from year to year. This result may not be an indicator of results you may obtain as local growing, soil and weather conditions may vary. Growers should evaluate data from multiple locations and years whenever possible.