Let’s Talk About Soybean Nutrition
Everything you need to know about soybean nutrition and more.
The Research to Unlock the Potential in Your Soybeans
From land grant university field trials to our own corporate-sponsored research, these results prove one thing: we’ve been underestimating the growth potential of soybeans for too long. With the proper nutrient plan, including increased sulfur (S) and nitrogen (N) availability, high-yielding soybeans can be a profitable option year after year. See for yourself.
With clean air regulations, total S depositions have declined from 20 lb S/acre to ~0, but a 75 bu/acre crop needs ~15 lb S/acre. This is a critical gap in many soils. Notably, 20-25 lb N/acre is all that is needed to boost early growth and/or to complement soil N and biological N during reproductive stages.
- Soybeans can benefit from S and N applied within 2-3 weeks of planting. S is essential for biological N fixation, and N can boost early growth while nodulation establishes.
- Soybeans may benefit from N and S applied at bloom or shortly after – soil N plus biological N fixation may not be enough to grow 75+ bu/acre, plus 50% the N and S is taken up after flowering.
A 100% sulfate-S source can be applied as a granule on the soil surface and will be immediately available for root uptake with the first rain. An N source that resists volatilization loss, such as AMS, may be broadcast- applied over previous crop residue or over the soybean field.
- Sulf-N® resists N loss and provides immediately-available S.
- Soybean field soybean studies have shown S responses of up to 13 bu/acre.
- There is no need to incorporate into the soil; it will solubilize and become available to roots with the first rain.
- It is proven to be 2X more efficient than fertilizer applications composed of 50% of S in the elemental form.
The Secret to Soybean Success is With Supplemental N and S
The best source of sulfur and nitrogen for your high-yielding soybeans is ammonium sulfate (AMS).
Soybeans only naturally fix about 50% of the nitrogen they need, and sulfur is critical for many plant physiology processes that promote season-long plant health from emergence to full maturity. To have a successful nutrient management plan, you need a fertilizer that has a flexible application window and offers high nutrient density and plant availability. Ammonium sulfate is a proven solution that offers everything you are looking for in a supplemental fertilizer.