Increasing corn yields with Smart Nutrition™ MAP+MST®

Analysis of all 44 corn trials conducted with university cooperators and independent researchers from 2018 to 2020 reveals that Smart Nutrition MAP+MST increased corn yield compared to the MAP only no sulfur control and performed similarly to MAP and Ammonium Sulfate (AMS) blend as well as a MAP and sulfur competitor blend. There are many soil factors that can affect a crop’s response to sulfur application and fertilizer source. Corn yield response trials were conducted at various locations across the US.

Smart Nutrition MAP+MST is a high-density fertilizer, capable of supplying higher concentrations of both phosphorus and sulfur for crop production than many other products on the market with lower fertilizer volumes. An increase in yield over control treatments shows the value of applying sulfur MAP+MST as a sulfur source for corn production.

Corn plants need sulfur throughout the entire growing season. Micronized elemental sulfur as Micronized Sulfur Technology (MST®) requires oxidation before becoming plant available, acting as a slow release fertilizer. Smart Nutrition MAP+MST decreases the potential for sulfur losses compared to AMS, especially during times of heavy rainfall or in coarse textured soils.

Summary of third-party trials from 2018 to 2020. Treatments with different letters are significantly different.

Comparable yields between Smart Nutrition MAP+MST and AMS shows that oxidation rates of MST were sufficient to match the availability of sulfur from AMS. With Smart Nutrition MAP+MST, farmers can hedge their bets on making sure the sulfur they apply to their fields is available when the plant needs it most.