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, Video In-Season Corn Fertilization, Video Webinar Replay: Efficacy of Ammonium Sulfate vs New Granular Sulfur Fertilizers Webinar Recap: Efficacy of Ammonium Sulfate vs New Granular Sulfur Fertilizers in Crop Production Crop Life Webinar Replay: High-Yielding Soybeans (Dec. 2018) Managing Soybeans for High Yields, Video (Dec. 2018) Sulfur Fertilization on Soybeans, Video (Dec. 2018) Webinar Recap: Modern Soybeans Require More S and N (160 KB)

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)

Benefits of Ammonium Sulfate, Ag Journ, White Paper (139 KB) How Sulf-N^® Ammonium Sulfate Stacks Up, Comparison Sheet (89 KB) Sulf-N^® News: Managing Soybeans for High Yields, Plus the Latest on Fertilization (156 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) Sulf-N^® News: Not All Sulfur Sources Are Created Equal (378 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: Webinar Recap About Efficacy of New vs. Traditional Granular Sulfur Fertilizers (217 KB) Sulf-N^® News: Why Sulfur Is the “Fourth Major Nutrient” (166 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)

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

Sulf-N^® News: Sulfur Is Vital to Nitrogen Fixation in Alfalfa (410 KB) Sulfur Fertilizer Is Not Just for Sandy Soils Anymore, Bulletin (156 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)

Canola Needs Available Sulfur, Bulletin (156 KB) Elemental vs Sulfate: Crop Response Depends on Sulfur Form, Bulletin (143 KB) Scout Canola Fields After Harvest, Bulletin (141 KB)

In-Season Corn Fertilization, Video Advancing Corn Yields, Brochure (488 KB) Need for Applied Sulfur in Corn Is Increasing in Indiana and Elsewhere, White Paper (169 KB) Sulf-N^® News: Need for Applied Sulfur on Corn Is Increasing in Indiana/Elsewhere (145 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: Ammonium Sulfate for High-Yield Systems; Optimizing Nutrition and Corn Growth (225 KB) Sulf-N^® News: Ammonium Sulfate – Higher Efficiency, Higher Corn Yields (348 KB) Sulf-N^® News: Getting the Nitrogen and Sulfur Nutrition that Corn and Soybeans Need (693 KB) Sulf-N^® News: Meeting Sulfur Demand of Modern Corn Hybrids (158 KB) Sulf-N^® News: University of Illinois Research Sheds Light On Surprising Sulfur Use in Corn (512 KB) Evaluation of Corn Response to Sulfur Fertilization in Iowa, Bulletin (177 KB) Form of Sulfur Important for Corn and Wheat Starter, Bulletin (149 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)

Advancing Cotton Yields, Brochure (411 KB) Sulfur Builds Leaf Tissue & Cotton Yields, White Paper (171 KB) Sulf-N^® News: Sulfur Builds Leaf Tissue & Cotton Yields (144 KB) Wet Spring Could Put Sulfur Out of Cotton’s Reach, White Paper (217 KB) Sulf-N^® News: Getting an Extra Cotton Bale From Sulfur (239 KB) Sulf-N^® News: How Adding Sulfur Can Replenish Soil and Boost Cotton Yields (146 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) 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)

Advancing Forage Yields, Brochure (620 KB) How Ammonium Sulfate Boosts Forage Production, White Paper (138 KB) Sulfur is the Missing Ingredient in Many Forage Stands, White Paper Sulfur Boosts Warm- and Cool-Season Grasses, White Paper (146 KB) Sulf-N^® News: Ammonium Sulfate, a Preferred Alternative to Ammonium Nitrate (371 KB) Sulf-N^® News: How Ammonium Sulfate Boosts Forage Production (454 KB) Sulf-N^® News: Sulfur Boosts Warm- and Cool-Season Grasses (168 KB) Sulf-N^® News: The Benefits of Sulfur in Forage Crops (340 KB) Sulf-N^® News: Why Less “Free” Sulfur Requires More Added Sulfur (194 KB) Growth Response and Color Enhancement of Ammonium Sulfate vs. Urea in Bermudagrass, Bulletin (214 KB) Nitrogen Efficiency & Color Enhancement of Ammonium Sulfate vs. Urea in Bentgrass, Bulletin (177 KB) Sulfur Pays Dividends on Forage, Bulletin (162 KB) Sulfur: The Missing Link to Greener Grass, Bulletin (309 KB) The Sulfur Advantage in Bromegrass, Bulletin (183 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)

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

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

In-Season Soybeans Fertilization, Video Achieving Higher Soybean Yields, Infographic (1 MB) Crop Life Webinar Replay: High-Yielding Soybeans (Dec. 2018) Managing Soybeans for High Yields, Video (Dec. 2018) Sulfur Fertilization on Soybeans, Video (Dec. 2018) Webinar Recap: Modern Soybeans Require More S and N (160 KB) Sulf-N^® News: Using 4R Nutrient Stewardship for 2X Greater Efficiency (219 KB) Sulf-N^® News: Managing Soybeans for High Yields, Plus the Latest on Fertilization (156 KB)

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

Advancing Wheat Yields, Brochure (750 KB) Boost Winter Wheat Performance, White Paper (160 KB) Sulf-N^® News: Ammonium Sulfate Protects Wheat Yields (321 KB) Sulf-N^® News: Boost Fall Tillering with Ammonium Sulfate (242 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) How To Support Yield-Making Tillers, Bulletin (135 KB) Form of Sulfur Important for Corn and Wheat Starter, Bulletin (149 KB) Avoid Sulfur Deficiencies in Wheat, David Dunn, University of Missouri (27 KB)