Ammonium Sulfate: A Premium Sulfur Source Sulfur: The Fourth Major Nutrient Ammonium Sulfate: The Alternative to Ammonium Nitrate Ammonium Sulfate for High-Yield Systems: Part One Ammonium Sulfate for High-Yield Systems: Part Two All Ammonium Sulfate Fertilizers Are Not Created Equal In-Season Soybeans Fertilization In-Season Corn Fertilization Webinar Replay: Efficacy of Ammonium Sulfate vs New Granular Sulfur Fertilizers Webinar Summary: Efficacy of Ammonium Sulfate vs New Granular Sulfur Fertilizers in Crop Production

ROSI™ Return on Sulfur Investment Calculator – iPhone App ROSI™ Return on Sulfur Investment Calculator – Android App

Advancing Field After Field, Agronomic Brochure (439 KB) Product Guide (490 KB) Suspension Fertilizer Formulation Guide (162 KB) Liquid Fertilizer Formulation Guide (203 KB) Dry Blend Fertilizer Formulation Guide (182 KB) Sulf-N^® Ammonium Sulfate, Product Specification Sheet (94 KB) Sulf-N^® Ammonium Sulfate Solution, Product Information Sheet (84 KB) The Ammonium Advantage, Bulletin (171 KB)

Sulf-N^® News: Recognizing the Symptoms of Sulfur Deficiency (437 KB) Sulf-N^® News: Sulfur Deficiency – A Growing Concern (449 KB) Sulf-N^® News: Not All Sulfur Sources Are Created Equal (378 KB) Sulf-N^® News: Ammonium Sulfate – The Alternative to Ammonium Nitrate (258 KB) Sulf-N^® News: Ammonium Sulfate for High Yield Systems – Part One (278 KB) Benefits of Ammonium Sulfate, Ag Journ, White Paper (139 KB) Achieving Uniform Spread with Mid-Grade Sulf-N^® Blends, Bulletin (161 KB) Is Gypsum a Good Source of Sulfur?, Bulletin (135 KB) New Acidification Values Change Profile of Ammonium Sulfate, Bulletin (155 KB) Soil Science Paper Highlights Strengths of Ammonium Sulfate, Bulletin (139 KB) Sulf-N^® News: Why Sulfur Is the “Fourth Major Nutrient” (166 KB) Sulf-N^® News: Webinar Recap About Efficacy of New vs. Traditional Granular Sulfur Fertilizers (217 KB)

U.S. Canada (English) Canada (French)

Sulf-N^® News: Sulfur Is Vital to Nitrogen Fixation in Alfalfa (410 KB) Dealing with Sulfur Deficiency in Northeast Iowa Alfalfa Production, Animal Industry Report (229 KB) Cleaner Air Creating Sulfur Deficiencies, Wisconsin State Farmer (121 KB) Survey Tracks Sulfur Levels, Delmarva Farmer (74 KB) Sulfur Deficiencies Cropping Up in Unexpected Places, Farm & Ranch Guide (90 KB) Sulfur Fertilizer is Not Just for Sandy Soils Anymore (159 KB)

Scout Canola Fields After Harvest (722 KB) Canola Needs Available Sulfur, Bulletin (156 KB) Elemental vs Sulfate: Crop Response Depends on Sulfur Form, Bulletin (143 KB)

Sulf-N^® News: University of Illinois Research Sheds Light On Surprising Sulfur Use in Corn (512 KB) Sulf-N^® News: Ammonium Sulfate – Higher Efficiency, Higher Corn Yields (348 KB) Sulf-N^® News: Meeting Sulfur Demand of Modern Corn Hybrids (158 KB) Advancing Corn Yields, Brochure (488 KB) Changing Sulfur Trends in Southern Agriculture, White Paper (146 KB) Pastures, Hayfields and Corn May Need Sulfur, Yarborough-NCDA&CS, White Paper (122 KB) Sulf-N^® News: Getting the Nitrogen and Sulfur Nutrition that Corn and Soybeans Need (693 KB) Sulf-N^® News: Ammonium Sulfate for High-Yield Systems; Optimizing Nutrition and Corn Growth (225 KB) Evaluation of Corn Response to Sulfur Fertilization in Northeast Iowa, 2006-2007 Project Conducted by John Sawyer, Department of Agronomy, Iowa State (73 KB) 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)

Sulf-N^® News: Getting an Extra Cotton Bale From Sulfur (239 KB) Sulf-N^® News: Maintaining Nitrogen – Sulfur Ratio is Vial to High Cotton Yields (207 KB) Sulf-N^® News: Sulfur Boosts Cotton Yields and Quality (222 KB) Advancing Cotton Yields, Brochure (411 KB) Cotton Response to Rate & Source of Sulfur on Sandy Coastal Plain Soil, Bulletin (181 KB) Don’t Let Sulfur Hold Cotton Crops Back, Bulletin (140 KB) Study Underscores Need for Sulfur on Cotton, Cooperative Farming News (19 KB)

How Ammonium Sulfate Boosts Forage Production, White Paper (138 KB) Sulf-N^® News: The Benefits of Sulfur in Forage Crops (340 KB) Advancing Forage Yields, Brochure (620 KB) Sulfur Fertilization of Bromegrass in Kansas, Bulletin (184 KB) Growth Response & Color Enhancement of Ammonium Sulfate vs Urea in Bermudagrass, Bulletin (Warren D. Davenport, PAT2H Horticultural Research Services, Inc.) (214 KB) Sulfur: The Missing Link to Greener Grass, Bulletin (309 KB) Nitrogen Efficiency & Color Enhancement of Ammonium Sulfate vs. Urea in Bentgrass, Bulletin (177 KB) Sulf-N^® News: How Ammonium Sulfate Boosts Forage Production (454 KB) Sulf-N^® News: Ammonium Sulfate, a Preferred Alternative to Ammonium Nitrate (371 KB) Sulfur Boosts Warm- and Cool-Season Grasses, White Paper (146 KB) Sulf-N^® News: Sulfur Boosts Warm- and Cool-Season Grasses (168 KB) Sulfur Pays Dividends on Bromegrass and Tall Fescue (188 KB) Sulfur’s Big Boost, Progressive Farmer (114 KB) Sulfur Surprise, Farm Journal (215 KB) Sulfur Fertilizer Boosts Winter Forage Protection, Cooperative Farming News (17 KB)

Boost Potato Yields with Better Nitrogen Management, Bulletin (147 KB) Potato Fertility Requirements & Recommendations for Nitrogen, Bulletin (181 KB) Sulf-N^® News: Ammonium Sulfate, a Preferred Alternative to Ammonium Nitrate (373 KB)

Ammonium Sulfate Proves an Efficient Nitrogen Source in Trials, Rice Farming (101 KB)

Give Your Vegetable Crops the Ammonium Advantage, Bulletin (140 KB)

Sulf-N^® News: Ammonium Sulfate Protects Wheat Yields (321 KB) Sulf-N^® News: How Sulfur Improves Yields and Baking Properties in Winter Wheat (426 KB) Sulf-N^® News: Sharp Eye and Tissue Testing Program Save Wheat Crop (156 KB) Sulf-N^® News: Sulfur Boosts Protein and Baking Quality in Hard Wheat Varieties (328 KB) Sulf-N^® News: Sulfur Can Be Critical for Wheat This Fall (247 KB) Sulf-N^® News: Boost Fall Tillering with Ammonium Sulfate (242 KB) Advancing Wheat Yields, Brochure (750 KB) Boost Winter Wheat Performance, White Paper (160 KB) Support Yield-Making Tillers (222 KB) Avoid Sulfur Deficiencies in Wheat, David Dunn, University of Missouri (27 KB) Form of Sulfur Important for Corn & Wheat Starter (187 KB)