Improve Your Crop Growth with Precision Fertilization

Optimize yields and nutrient uptake with our advanced sidedress fertilizer solutions.

Sidedress Fertigation FAQs

Find answers to the most common questions about our sidedress products and suggested application methods.

Application Methods: Coulters vs Y-Drop?

Over the past five years Y-Drop has consistently increased yield over coulter application by 4-10 bushels/acre. In 2023 with extremely dry conditions, however, we did see benefits from a coulter rig application due to placing fertilizer in the soil.

When applying fertilizer via Y-Drop how long can fertilizer set on the soil surface without being lost due to lack of rain?

Up to 25-30 days especially with complexed carbon. By using complexing agents the viability of the fertilizer is greatly extended.

What are the benefits of using NitroSul (8-0-0-9) vs ATS (12-0-0-26)?

In early application time frames during cool soil conditions NiroSul is 100% plant available, whereas ATS has to be converted to a plant available form which takes soil temperatures above 60°F. ATS under warm soil conditions is still a great fertilizer.

Why should I add Potassium into a sidedress application?
  • Five years worth of SAP and Tissue data shows potassium to be a limiting factor from rapid growth stages through reproductive stages.
  • Bio Ag management’s sidedress data from over the past five years with our nitrogen, potassium, sulfur has been our most consistent program to date. With yield increase on the high end adding as much as 40+ bushels.
  • Better late season plant health, stalk integrity and quality.
If I add a Nitrogen, Sulfur, Potassium sidedress program, should I cut back base fertility rates?

Yes, we typically cut base nitrogen applications by 20-35 lbs, base rate sulfur by 10 lbs, base rate potassium by 20-30 lbs. We look at fertilizer applications as a year long complete plant nutrition program not a single application system.

What is the importance of adding a carbon source/complexing agent?
  • Humic acid protects the Urea portion of UAN nitrogen
  • Diverse carbon sources containing amino acids keep applied nutrition from binding with the soil and or other nutrients. Ultimately holding applied nutrition in a plant available form.
  • All nutrient reactions in the plant consume carbon.
Does BioAg Management offer custom blends based off SAP or Tissue sample results?
Absolutely! Letting the plants tell the story of its nutritional excesses or deficiencies allows us to make a custom blend to apply the right rate and needed nutrients, ultimately getting you the most bang for your buck.
When is the best time to sidedress?

In corn apply before tassel, but applying in v5 to v7 ahead of rapid growth stage has shown consistent results.

Get in Touch with BioAg Management

Greg Tippey: 217.430.4524