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    MicroEssentials® SZ® Phosphorus Uptake (Greenhouse Trial) vs MAP and MAP Blend in V6 Corn – AgriFacts

    20%

    Increased P update with MicroEssentials SZ compared to MAP at V6

    9%

    Increased P uptake with MicroEssentials SZ compared to a MAP+AS+ZnS0, blend at V6

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    Objective

    Quantify the increase of phosphorus uptake with MicroEssentials® SZ® (12-40-0-10S-1Zn) applied
    to corn compared to MAP (11-52-0) and MAP + Ammonium Sulfate (AS, 21-0-0-24S) + Zinc Sulfate (ZnSO₄ ,17.5-0-0-35.5Zn) blends in V6 corn.

    OVERVIEW

    • Balanced crop nutrition is critical for corn production.
    • MicroEssentials SZ supplies nitrogen, phosphorus, sulfur, and zinc in one nutritionally balanced granule.
    • The MicroEssentials Fusion® technology process creates a unique chemistry that results in increased nutrient uptake and crop yield compared to alternative sources.

    TRIAL DETAILS

    CROP: Corn (Zea mays)
    YEAR: 2023
    LOCATION: Sabanci University, Turkey
    DATA SOURCE: Dr. Ismail Cakmak

    EXPERIMENTAL DESIGN: Pot trials were conducted under greenhouse conditions and averaged across two soil types and two fertilizer rates:

    • Loam (7.9 pH, 4 ppm P, 0.1 ppm Zn)
    • Sandy Clay Loam (7.8 pH, 13 ppm P, 0.2 ppm Zn)
    • Phosphorus fertilizer was applied representing a low and high P rate to each soil and balanced among fertilizer sources
    • MAP + AS + ZnSO₄ blend was balanced to match phosphorus, sulfur, and zinc rates

    TREATMENTS:

    • No phosphorus (UTC)
    • MAP + AS + ZnSO₄
    • MAP
    • MicroEssentials SZ

    STUDY DETAILS:

    • Fertilizers were homogeneously mixed with soil, simulating broadcast and incorporated applications.
    • Above-ground dry matter and nutrient uptake was determined on 32-day-old/V6 corn.

    RESULTS

    greenhouse_results_mes-sz-map


    SUMMARY

    • Corn phosphorus uptake was greater with MicroEssentials SZ than any other treatment.
    • MicroEssentials SZ treated plants had 20% greater phosphorus uptake at V6 growth stage than plants treated with MAP.
    • MicroEssentials SZ treated plants had 9% greater phosphorus uptake at V6 growth stage than plants treated with the MAP + AS + ZnSO₄  blend.