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Vol. 1 · Field almanac

Growing entry · Q&A

Make Smart Fertility Cuts When Prices Jump in Row Crops

· Agronomy Magazine

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Fertilizer prices can swing dramatically, forcing farmers to make tough decisions about their crop nutrition programs. This article breaks down practical strategies for managing phosphorus and potassium applications when costs spike, with guidance from agronomic experts who understand both soil health and farm profitability. Learn how to maintain yields while adjusting your fertility program to match current market conditions.

What the experts said

The field panel · 6
  1. Boost P and K with TITAN XCDarla Huff
  2. Place Plant Food via Updated Grid Maps
  3. Credit Legume Covers for Next Nitrogen
  4. Set Realistic Field Specific Yield Goals
  5. Band Nutrients Close to the Seed
  6. Fix Soil Acidity First with Lime

Boost P and K with TITAN XC

DH

Darla HuffDirector of Strategy · Agricen

Dry Fertilizer Efficiency Technology Gives Growers Flexibility When P and K Costs Are High

When fertilizer prices spike, growers might be inclined to reduce their nutrient application rates. The challenge is how to responsibly reduce applied nutrients without sacrificing yield. When it comes to dry phosphorus and potassium fertilizers, high prices in recent years have led many to test trimming their P and K rates while adding a fertilizer efficiency technology called TITAN XC to their blend to protect yield potential.

Field trials validate this approach. In five split-field corn trials from Sidney, Illinois, dry fertilizer was VRT applied in fall or spring. The dry fertilizer was either treated with TITAN XC and applied at a reduced rate (10% reduction) or applied at a full rate with no TITAN XC. The TITAN XC treatment outyielded the full-rate fertilizer by 6.7 bu/A AND increased return on investment by more than $19/bushel.

Since 2016, TITAN XC has been applied on over 100 million acres across the United States. It is applied directly to dry fertilizer blends to enhance fertilizer efficiency, increasing mineralization of applied nutrients by as much as 20 percent. This gives crops a head start when it comes to having nutrients available when they need them, rather than waiting for natural processes to convert the nutrients into a plant-available form. It's like running a 100-yard dash with a 20-yard head start.

John Kraft, who farms in Princeville, Illinois, has used TITAN XC and noticed an advantage when it comes to the availability of his applied nutrients, even when he cuts back on his dry fertilizer use rates.

"It makes that fertilizer more available immediately," says John. "So I'm seeing lower use rates, but I'm getting more available to my crop immediately, which in turn saves me money on the amount of fertilizer I have to apply every year."

Place Plant Food via Updated Grid Maps

§ Written with AINo contributor wrote this answer

Recent grid soil tests show how plant food levels change across a field. Using these maps lets fertilizer be placed only where it pays. High-testing zones can skip or cut rates, while low-testing spots get what they need.

This trims waste and keeps yields steady when prices rise. Tests should be updated often so plans reflect current soil changes and past removals. Get new grid samples and rebuild your variable-rate maps now.

Credit Legume Covers for Next Nitrogen

§ Written with AINo contributor wrote this answer

Legume cover crops can supply a valuable share of nitrogen for the next cash crop. The amount depends on growth, stand quality, and when the cover is ended. Ending the cover at the right time helps more nitrogen release in sync with crop demand.

Proper seed choice and inoculation also support strong nitrogen fixing by the cover. With a sound nitrogen credit, purchased fertilizer needs can be reduced without hurting yield. Plan a legume cover and write the nitrogen credit into your fertility budget today.

Set Realistic Field Specific Yield Goals

§ Written with AINo contributor wrote this answer

Fertilizer plans work best when tied to a clear, field by field yield goal. Past yield maps, hybrid records, and local weather risks help set a goal that can actually be reached. Once the goal is set, nutrient rates can be matched to the crop’s expected removal and response.

This avoids chasing top-end yields that rarely happen and cost too much. The result is a better return for each dollar spent. Set firm yield targets for every field before buying any fertilizer.

Band Nutrients Close to the Seed

§ Written with AINo contributor wrote this answer

Placing nutrients in a tight band near the seed raises efficiency compared with broadcasting. The crop finds the food faster, which matters in cool or dry early springs. Because uptake is better, rates can often be lowered without hurting stand or yield.

Safe placement and product choice prevent salt injury and planter issues. Good calibration keeps bands the right distance from the seed. Review placement options and tune your planter for banded fertilizer this season.

Fix Soil Acidity First with Lime

§ Written with AINo contributor wrote this answer

Soil pH sets the stage for how well fertilizer works. In acid ground, key nutrients get tied up and roots face stress from harmful elements. Lime lifts pH into the sweet spot, which improves nutrient use and boosts helpful soil life.

Quality and fineness of the lime affect how fast it works, and it needs time to react before the crop needs the nutrients. Correcting pH first makes each dollar of fertilizer go farther. Check pH levels and schedule needed lime before planning other fertilizer.

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