OVERVIEW
Monoammonium phosphate (MAP) is a common phosphorus source used on soybean.
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).
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
Soybean yields increased with the addition of S.
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.
This research demonstrates the additional soybean yield from applying a superior phosphate source that contains two forms of S (sulfate and elemental).
MicroEssentials® S10® demonstrates the value of uniform nutrient distribution, increased nutrient uptake, and season-long S availability.
