OVERVIEW
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Monoammonium phosphate (MAP) is a common phosphorus source used on soybean.
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New university research highlights the need for sulfur (S) management on soybean due to higher grain yields and lower atmospheric deposition. Data also emphasizes the need for S during both vegetative and reproductive growth (See Figure 1).
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MicroEssentials® S10® supplies multiple nutrients fused into one nutritionally balanced granule, promoting uniform nutrient distribution, increased nutrient uptake, season-long S availability and higher yields.
TRIAL DETAILS
Crop: Soybean (Glycine max)
Years: 2016-2018
Locations: 22 trials – AR, IL, IN, MI, OH, ON, WI
Data Source: Field studies conducted by independent third-party researchers.
Experimental Design: Small-plot RCBD with 4 replications.
Cropping Conditions: All trials conformed to local cropping practices.
P Rate: 40 lbs P₂O₅/ac applied as MAP (11-52-0), MAP+AS (21-0-0-24) or MicroEssentials® S10® (12-40-0-10S)
S Rate: 10 lbs S/ac from AS or MicroEssentials® S10®
K Rate: As required by soil test
Application Timing: Spring Preplant
Application Method: Broadcast incorporated
Results
SUMMARY
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Soybean yields increased with the addition of S.
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Averaged across 22 site-years, MicroEssentials® S10® increased soybean yield by 1.8 bu/ac over MAP and 1.4 bu/ac over MAP+AS.
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This research demonstrates the additional soybean yield from applying a superior phosphate source that contains two forms of S (sulfate and elemental).
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MicroEssentials® S10® demonstrates the value of uniform nutrient distribution, increased nutrient uptake, and season-long S availability.
