OVERVIEW
Monoammonium phosphate (MAP) is a common phosphorus source used in soybean production.
New university research highlights the need for sulfur (S) management in soybean due to higher grain yields and lower atmospheric deposition. Data also emphasize 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: 2018-2020
Locations: 21 trials - AR, IL, MI, OH, ON, TN, 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.
TREATMENTS:
Treatment (Trmnt) / Rates / Timing:
P Rate: 40 lbs P₂O₅/ac applied as MAP or MicroEssentials S10
K Rate: 60 lbs K₂O/ac applied accross all treatments
S Rate: 10 lbs S/ac applied as AS or MicroEssentials S10
Application Timing: Spring Preplant
Application Method: Broadcast Incorporated
RESULTS
SUMMARY
Soybean yield increased with the addition of S.
Averaged across 21 site-years, MicroEssentials S10 increased soybean yield 2.5 bu/ac over MAP and 1.4 bu/ac over MAP + AS.
MicroEssentials S10 demonstrates the value of uniform nutrient distribution, increased nutrient uptake, and two forms of S (sulfate and elemental) for season-long S availability.
