Split input markets and the lessons of 2026 make the case for locking in a plan early and staying responsive as the season unfolds.
Going into 2026, fertilizer alone was set to claim roughly 52 bushels of a 200-bushel corn budget. From 2010 to 2022, it took about 38 (Agricultural Economic Insights). Prices have climbed since.
That gap raises the cost of every fertility decision made out of habit. For 2027, neither “do what we did last year” nor “wait and see where prices land” holds up.
This is the year to dial in a plan and lock it in early.
When conditions shift, and they will, you’ll adjust from a plan you already trust. That’s what keeps agronomic decisions focused.
The input market isn’t moving as one
Fertilizer prices are higher heading into fall, and University of Illinois economists expect that to raise the cost of fall applications for the 2027 crop. Each nutrient is telling a different story, though, and that’s where a plan pays.
Early November retail prices show the split:
| Nutrient | Retail price ($/ton) |
|---|---|
| Anhydrous | $1,003 |
| MAP | $991 |
| DAP | $950 |
| Potash | $504 |
Source: DTN national retail fertilizer survey, first week of November 2026.
Phosphorus deserves the closest look. At today’s prices, a flat maintenance rate applied out of habit gets expensive fast. Put phosphorus where a current soil test says it will pay, and hold back where levels are already adequate.
Here’s what that looks like on paper. At $950 a ton, a 100-pound-per-acre DAP maintenance pass costs about $47.50 an acre. Skip it on fields that test adequate, and a 1,000-acre operation keeps roughly $47,500 in the fertility budget.
Potash is the counterweight. At about half the price of phosphorus per ton, it gives you room to move fertility dollars to where they’ll do the most. Fields with low K tests or heavy removal off a big crop this fall may be the place to build.
Nitrogen carries the most uncertainty. The Strait of Hormuz disruption pushed ammonia higher this year, and North Dakota State University analysts project fertilizer prices staying above pre-conflict levels into 2028. Anhydrous was back above $1,000 a ton in DTN’s early November survey.
With nitrogen, timing and method matter as much as rate. Securing a portion of product early, forward contracting, and building split or in-season applications into the plan all reduce your exposure if supply tightens again next spring.
Soil testing and variable-rate: the backbone of the plan
The best place to start is the soil test. CoBank notes that U.S. farmers have cut NPK applications by about 20% since 2008, and that under-applying can take two to three years to show up as lost yield.
After several tight-margin years, a lot of fields have been drawing down. At these prices, you can’t tell a smart cut from an expensive one without current data.
Grid or zone sampling and variable-rate technology close that gap. Whichever sampling approach fits your operation, the goal is a prescription built from what each part of the field needs. With phosphorus near $950 a ton, that precision is how you stretch the fertility budget without giving up yield.
Crop protection: lower costs, firming prices
USDA forecasts farm pesticide expenses down about 6.6% in 2026, as more active ingredients come off patent and add lower-cost options. We covered what that means for retailers in From Lower Cost to Greater Confidence.
Depleted channel inventories have some analysts expecting prices to firm off recent lows, so the savings favor farmers and retailers who settle product decisions early.
Disease and fungicide management: plan early, respond in time
2026 showed that fungicide decisions follow the same logic as fertility: plan for what you know, and stay responsive to what you don’t.
Tar spot is the plan-for-what-you-know case. It has become corn’s biggest annual yield threat, and because it overwinters in residue, fields with a tar spot history carry known risk into next season, especially corn-on-corn and no-till acres.
Research points to VT through R3 as the most effective fungicide window, and waiting for visible symptoms often means waiting too long. Those fields need a fungicide plan in place before planting.
Southern rust is the stay-responsive case. It was widespread in 2025. Early detections in the South were lighter this year, and it looked like a quieter season until it moved north and built across multiple Midwest states late in the summer, leaving farmers weighing late-season passes.
For southern rust, the plan is a process. Scout regularly, agree in advance on the trigger for a spray, and use the Crop Protection Network tracking maps to see when it’s moving into your area.
In both cases, the mistake is a fungicide decision made after the window to protect yield has closed.
Build the plan this fall
A 2027 plan starts now, with current soil tests, a variable-rate fertility strategy, a read on field-level disease risk, a nitrogen approach that manages exposure, and agreed triggers for in-season decisions.
When farmer and retailer build it together, everyone knows the plan and what would trigger a change.
For retailers, this fall’s planning meetings are the place to put all of it on the table. Walk through soil test results and fungicide triggers field by field, then settle how the plan will be paid for and protected in the same conversation. A farmer who leaves with a finished plan is less likely to abandon it in June.
The hardest part of any plan is sticking with it when conditions get tough. With a Crop Plan Warranty, a farmer who follows the retailer’s recommended plan has a yield benchmark set from that field’s own proven history. If the field falls short, the warranty pays.
Input Financing handles the other side. Farmers set up a credit line through their retailer early, so product and terms are locked in before spring.
More farmers are planning this way. Michael Hoffstatter, Managing Director of Input Financing at Growers Edge, told AgWeb that applications for the 2027 program have tripled from this time last year, and 94% of retailer partners re-enrolled.
The operations that come through 2027 best will be the ones whose plan was set before the first price swing or disease report forced a decision.
Retailers: Talk with our team about adding Crop Plan Warranty and Input Financing to your 2027 plans.
Farmers: Ask your retailer whether your 2027 plan can carry a Crop Plan Warranty.
Sources
- Fertilizer and Fuel Prices Higher Heading into Fall 2026, farmdoc daily, University of Illinois, August 11, 2026
- Retail Fertilizer Prices Mixed During First Week of November, DTN Progressive Farmer, November 11, 2026
- Four Charts Show How Stubborn Fertilizer Prices Have Been, Michigan Farm News
- Fertilizer Cost Increases Resulting from the Iran Conflict, farmdoc daily, May 2026
- Why Higher Fertilizer Prices Are Here to Stay, CoBank Knowledge Exchange, citing NDSU Agricultural Risk Policy Center
- Farm Sector Income Forecast, USDA Economic Research Service
- From Lower Cost to Greater Confidence, Growers Edge, September 15, 2026
- Elevated Expenses and Supply Chain Risks Weigh on Crop Protection Outlook, AgWeb
- 2026 Corn Belt Disease Risks to Watch, Corteva Agriscience
- Fungicide Decisions in 2026, Iowa State University Extension
- 2025 Disease Lessons, CHS Agronomy
- What Does Southern Rust Look Like for 2026?, Farm Progress
- Time to Check Corn for Southern Rust, DTN Production Blog, July 28, 2026
- Southern Rust Builds in Eight Midwest States, AgWeb
- Crop Protection Network disease maps
- The New Way of Ag Financing: Product and Payment Are Now One Conversation, AgWeb; see also the Growers Edge GlobeNewswire release, September 29, 2026
- Crop Plan Warranty for retailers, Growers Edge
- Input Financing, Growers Edge