Before You Buy Farmland This Fall, Ask for the Yield History

Ask for the Yield History Before You Ask Anything Else

Here's the question almost nobody asks before signing a fall land contract: "Can I see the actual harvest data for the last five years?" Not the broker's summary. Not the seller's memory of a good year. The actual numbers, field by field.

Most buyers never ask. They hear "this ground did 180 bushels last year" standing in a picked cornfield in September, and they take it. That's not a knock on buyers, it's just how the conversation is built: the seller has the production records, the buyer usually doesn't know to request them, and the broker's job is to close the deal, not audit it. That asymmetry is the whole problem, and it's exactly why post-harvest land sales move faster than the diligence behind them.

Why the Seller's Yield Story Isn't Enough

A verbal yield claim is a sales figure until it's verified. It's not that sellers are lying, most aren't, but "this ground did 180" is usually the best year, told after harvest, when memory and marketing blur together. It doesn't tell you what the field averaged across a drought year, a wet spring, or the years that didn't make it into the pitch.

Real due diligence means three things happen before you sign, not after:

1. You request three to five years of actual harvest history, by field, not a farm-wide blend.
2. You cross-check that history against USDA NRCS soil productivity data for that specific parcel.
3. You compare it against USDA NASS county yield averages for the same crop and years.

If the seller's number is well above both independent sources, that's not automatically a red flag, some ground genuinely outperforms its county. But now you're asking why, with data in hand, instead of hoping.

What Independent Verification Actually Looks Like

USDA NRCS rates soil productivity by map unit, using decades of federal survey data on drainage, slope, organic matter, and yield potential by crop. It doesn't care what the listing says. USDA NASS tracks actual county-level yield averages by crop and year, going back further than most sellers' memories. Together, they're the two federal checks that exist specifically so a buyer doesn't have to take a seller's word for it.

The problem is these are two separate databases, built for researchers and agronomists, not for someone trying to decide whether to offer $9,000 an acre by Friday. That's the gap a full pre-purchase checklist is built to close, and yield verification belongs right alongside title, easements, and drainage liens on that list.

Why This Matters More Right Now

September and October are when yield claims get made loosely and verified rarely. Combines are running, sellers are watching their own harvest come in, and "this field just did X" becomes the headline of every listing conversation. It's also when deals move fastest, because everyone involved wants to close before winter. That combination, loose claims plus fast timelines, is exactly when a buyer has the least leverage to slow down and ask for records. Which is precisely why you should ask anyway, before the momentum builds.

How Agriterra Scout Gives You an Independent Read

This is what Agriterra Scout's Decision Report ($89 once, for one parcel) is built for: an independent check that doesn't come from whoever is trying to close the sale. Run any U.S. parcel and get a soil productivity score, cash rent benchmarks for the county, and USDA program eligibility, all pulled from six federal sources including USDA NRCS and USDA NASS, in under a minute. Every figure is labeled Measured when it is a published federal number, Modeled when it is AgriTerra's own calculation from that data, or Estimate when it is a regional reference, and every number names a federal source you can check yourself.

Pair that with county cash rent benchmarking, since the county average often doesn't apply to your specific parcel any more than a broker's yield claim does. Both numbers need the same treatment: pulled from federal data, checked against the specific ground, not accepted because someone said so.

Use the Data as Leverage, Not Just Research

Here's the part sellers and brokers don't expect: a buyer who shows up with independent productivity and cash-rent numbers changes the conversation. It's no longer "trust my pitch about potential" versus "trust nothing." It's your NRCS-based soil score and NASS county average against their claim, both citable, both checkable by anyone in the room.

That's a fundamentally different negotiation. You're not accusing anyone of lying. You're simply not buying on faith, and that shift alone tends to sharpen the seller's numbers, or explain them, fast. If you're weighing this parcel against other uses entirely, like leasing it out or comparing farm income to a solar lease, the same independent data underpins that decision too.

What to Do Before You Sign

Start with the ask: three to five years of actual harvest records, by field. If the seller can produce them, compare them against independent NRCS soil data and NASS county averages before you accept the number. If they can't produce them, that itself tells you something.

Then run the parcel through Agriterra Scout before you make an offer. Eight federal data categories, a soil productivity score, and cash rent benchmarks, for less than the cost of the fuel to go look at the field again. Know what the land has actually produced before anyone tells you what it could.