Sulfur is vital to corn grain production. Sulfur deficiency symptoms in corn show up 21 days after emergence and reduce yields by one to two bushels a day after that. Early planting and reduced tillage encourage cooler soil and increase the risk of sulfur deficiency during critical early growth stages. Ammonium sulfate in a pre-plant or starter application provides essential sulfur for early season corn growth. It encourages better emergence, faster maturity, and higher yields.

Key Corn Benefits

  • Delivers 24 units of 100 percent sulfate sulfur, which supports the sulfur requirements of higher corn yields and is readily available for root uptake
  • Plant-efficient ammonium nitrogen
  • Resistant to nitrogen volatilization in surface applications for high residue systems, such as no till, minimum till, topdress and sidedress applications
  • Improves kernel fill with ammonium nitrogen, contributing to amino acid and protein formation
  • Unlocks availability of phosphorus and micronutrients in the soil
  • Shown to have equal or better performance than traditional dry or liquid phosphate starter blends on high-phosphorus soils

To learn more about how Sulf-N® can benefit your corn crop, browse the documents below or contact us for more information.

Supporting Research

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Sulfur Deficiency Symptoms in Emerging Corn, NC State University      
Minnesota Study Shows Sulfur Increases Yields in Heavier Soils, Tri-State Neighbor (41 KB)      
Added Sulfur Improves Corn Yields, High Plains Journal (93 KB)      
Sulfur Boosts Productivity on Eroded Soils, Illinois Agrinews (187 KB)      
Studies Favor Ammonium Sulfate for Corn Starter, Lancaster Farming (62 KB)      
Corn May be Short of Sulfur, Soybean Digest (160 KB)      
Cooler Soils at Planting Boost Need for Corn Starters, Indiana Agri News (15 KB)