Increase Soybean Yield With Sulfur

By Jacob Schmitt, Operations Agronomist


How important are sulfur applications to soybean yield? This is a question we hear often. In fact, we talk a lot about sulfur. Sulfur applications have become much more prominent in the past few years. In fact, it may be a nutrient we need to consider with the same level of importance as N, P and K.

Sulfur plays an extremely important role in nitrogen fixation in the soil. In a test at the North Central Research Station in 2020, the addition of sulfur from several different sources generated a positive ROI across the entire trial.

Y-Drop Sulfur Applications in Soybeans

Some of the key takeaways from this trial:

  • Adding an application of sulfur generated a positive yield response across the entire experiment
  • A Y-drop application of 2 gallons of accesS increased soybean yield by 3.7 per acre
  • A Y-drop application of CalSip at R2 increased yield 3.2 bushels per acre

Check out all of our research results on our website at

Want to learn about the importance of sulfur? AgroLiquid Agronomist John Leif penned this blog post, discussing why sulfur is so important to a crop.