Smart Nutrition™ MAP+MST® and 4R Nutrient Stewardship

By now we should all be aware of the 4Rs – Right Source, Right Rate, Right Time, and Right Place – but how do the 4Rs fit into your sulfur management? When it came to the Right Time, the Right Source of sulfur decision, elemental or sulfate, was the main determining factor…until Smart Nutrition MAP+MST came along. Smart Nutrition now offers versatility in application timing ensuring increased plant uptake and reduced probability of losses.

The sulfur source in Smart Nutrition MAP+MST (9-43-0-16 S) is elemental, but the difference is the sulfur is “micronized”. The elemental sulfur is reduced in size (micronized) into the smallest particle sizes in the industry and allows for quicker oxidation as the soil temperatures warm up in the spring. Smart Nutrition can be applied in the fall without the risk of loss due to leaching, which can happen with sulfate-sulfur fertilizer sources.

The research below reveals how Smart Nutrition MAP+MST compares to other sulfur products in corn. All treatments were balanced for nitrogen, phosphorus, and potassium. The MAP Only treatment received zero pounds of sulfur and all sulfur product treatments received the same rate of sulfur application. Smart Nutrition MAP+MST is a single product, while the other two treatments were blends of MAP with AMS and a sulfur competitor to reach application rates.

This research shows that Smart Nutrition MAP+MST can supply the sulfur needed to be effective in helping corn maximize yield when applied in the fall or spring. Versatility for application in fall or spring and oxidation rates quick enough to match sulfur availability from AMS makes Smart Nutrition a great choice for anyone following the 4Rs.

Get specific application recommendations for your crop and region here or contact your local sales rep to make Smart Nutrition MAP+MST part of your 4R nutrient management plan.