The final national harvest report is useful context, but it is not a verdict on an individual farm.
AHDB’s final 2026 report, published on 25 September, estimates average winter wheat yield at 6.9t/ha, around 11% below the national five-year average. Spring barley averaged 4.8t/ha, down 17%, and oats averaged 4.6t/ha, down 14%. Winter barley was broadly in line with its five-year average at 6.9t/ha, while oilseed rape stood out at 4.0t/ha, approximately 19% above its five-year average.
Those headlines hide striking variation. Reported wheat yields ranged from 3.9t/ha to 11.5t/ha. AHDB identifies soil type, drilling date, organic fertiliser use, previous cropping, variety, seed type and local weather among the factors that appear to have influenced results.
These are survey estimates from 60 farms covering about 38,500 hectares, not a prediction of what every business should have achieved. Their greatest value is as a prompt to examine why fields on the same farm performed differently.
Before memories fade and the next crop removes evidence, review these seven records.
1. Rebuild the field-by-field yield picture
Start below the farm average. Record output by field, crop and variety using the best available evidence: calibrated yield maps, weighbridge tickets, trailer weights, store movements and buyer receipts.
State whether each figure is measured, adjusted or estimated. Note the moisture basis and any rejected, downgraded or retained grain. A precise-looking yield can be misleading if the combine monitor was not calibrated or grain moved between stores without a record.
Compare each field with its own history as well as the AHDB range. The national average describes the sample; a field’s long-term trend is usually more useful for management.
2. Record quality, not only tonnes
AHDB says crop quality was highly variable, creating added storage and marketing challenges. Capture the measures relevant to the intended market, such as moisture, specific weight, protein, Hagberg falling number, screenings, admixture, oil content or germination.
Keep the sampling method, date and laboratory or intake result with the lot. If grain from different fields was combined, record when and why. Segregation can protect a premium, but only when the business knows what is in each store.
AHDB’s harvest toolkit points growers towards grain sampling, storage and contract guidance. Continue recording temperature, moisture, pests and mould while grain remains in store; harvest day is not the end of quality control.
3. Capture soil and moisture context
The 2026 survey links some of the variation to soil type and moisture availability. Avoid reducing that to “light land did badly”. Record the conditions that can be tested later.
For each field, note soil type, rooting restrictions, organic matter information, compaction, drainage, available water capacity where known, and visible drought stress. Add meaningful rainfall records from the farm or a nearby reliable station rather than a broad regional total.
Map areas that stayed green, senesced early or yielded unexpectedly well. Those differences may help target digging, soil testing, drainage inspection or organic-matter work.
4. Put establishment and inputs on one timeline
Drilling date is one of the factors highlighted by AHDB, but the date alone does not explain performance.
Build a short timeline for each field: previous crop, cultivation, drilling conditions, seed rate, variety, seed source, emergence, fertiliser and organic manure applications, crop-protection timings, lodging, pest or disease pressure and harvest date.
Record why a decision changed. A delayed spray caused by wind is different from a planned omission; a lower nitrogen rate following manure is different from a supply problem. Context prevents an unusual year from producing the wrong lesson.
5. Separate crop loss from operational loss
Record interruptions caused by machinery, labour, transport and storage separately from agronomic performance. Include breakdown hours, delayed combining, contractor availability, drying bottlenecks, rejected loads and time lost moving grain.
This distinguishes a crop that yielded poorly from one whose value was reduced after it was ready to cut. It also provides evidence for machinery, contractor and storage decisions.
Harvest records often begin in the cab. Keep displays, warning lamps, belts and controls clear, and secure paperwork or devices so they do not obstruct the operator. Farm Packs supplies heavy-duty tractor seat covers, but fit and safety equipment must be verified before ordering.
6. Reconcile physical output with the saleable result
For each crop, bridge the gap between harvested tonnes and the quantity sold or retained. Account for drying loss, cleaning, screenings, storage loss, claims, rejections and feed use.
Then attach actual prices and variable costs where they are known. Do not use the national yield movement as a shortcut for the farm’s financial result: quality premiums, contracts, timing and cost structure can change the outcome substantially.
The NFU’s response to the final report emphasises the pressure created by weak yields, high costs and lower commodity prices. That is an industry position rather than a measure of any one business, but it makes accurate cash-flow and marketing records more important.
7. Turn observations into testable decisions
Finish the review with a short action list. Separate immediate actions-such as segregating a lot, inspecting a store or recalibrating a monitor-from hypotheses that need more evidence.
For next season, change one or two variables where possible and define how success will be measured. A variety decision should use multi-year Recommended List evidence and the farm’s market requirements, not one difficult season. A cultivation change should have a target such as improved establishment, lower fuel use or reduced compaction, with a comparable area retained where practical.
Give every action an owner and deadline. Revisit the list after establishment and again before harvest.
Use the national report as a question, not an answer
The confirmed national picture is a disappointing and unusually variable harvest for wheat, spring barley and oats, with stronger average performance from oilseed rape. The reasons for one farm’s results remain field-specific.
A useful post-harvest review therefore does not begin by defending or criticising the average. It begins by making the farm’s own evidence complete enough to compare fields, seasons and decisions.
Record yield and quality, preserve the soil and weather context, separate agronomy from operational loss, and trace harvested tonnes through storage to sale. That turns a difficult season into information the next cropping plan can actually use.
This article provides general information and does not replace advice from an agronomist, grain merchant, store manager, accountant or other competent adviser. Sampling, storage, contracts and crop decisions should reflect the business’s circumstances and applicable assurance requirements.
Sources
AHDB: Final harvest report confirms cereal yields are below historic averages across the UK - 25 September 2026
AHDB: Harvest progress across the UK - final report of 2026 - updated 25 September 2026
NFU: Harvest figures demonstrate urgent need for investment and resilience - 25 September 2026
AHDB: Harvest toolkit for cereals and oilseeds - current guidance accessed 27 September 2026
