Overview
- Meeting canola’s crop nutrition needs for phosphorus (P) and sulfur (S) is critical for optimizing canola yields.
- Blends of MAP + AS are commodity fertilizer sources used in canola-growing regions of North America that provide nitrogen (N), P and only one form of sulfur that is subject to leaching loss.
- MicroEssentials SZ is a performance fertilizer that combines N, P, two forms of S providing season long sulfur availability, and zinc (Zn) to promote uniform nutrient distribution for higher yields.
Trial Details
Locations and Crop Management:
CROP: Canola (Brassica napus)
YEARS: 2017-2022
DATA SOURCE: Replicated small-plot trials conducted by university and/or independent third-party researchers.
CROPPING CONDITIONS: All trials conformed to local cropping practices.
N Rate: Applied according to local recommendations and balanced between treatments.
P Rate: 33 lbs P2O5/ac applied as MicroEssentials SZ or MAP.
S Rate: 15 lbs S/ac applied as MAP + AS, or 8.25 lbs S/ac as MicroEssentials SZ.
Application Method: Fertilizer was applied with the seed at planting.
Summary
- Meeting the crop nutrition needs of canola with MicroEssentials SZ resulted in an average yield increase of 2.1 bu/ac over MAP+AS.
- MicroEssentials SZ achieved greater yields with the same P2O5 rate, despite lower S application rate (15 lbs S/ac with AS vs 8.25 lbs S/ac with MicroEssentials SZ.)
- The yield advantage of MicroEssentials SZ compared to MAP+AS increased as yields increased, as was observed with the top yielding 1/3 of trials (over 60 bu/ac).