Fieldwork, made visible
Three samples.
One traceable story.
See how a CEMA 216 project connects the field, the laboratory and the final report. Explore the example first, then use the workflow on your own project.
01 / Start with a decision
What are we trying to learn?
Establish a method-documented soil-health baseline across three landscape positions before considering changes to residue and cover-crop management. Use the results with field observations to decide what to investigate, then repeat sampling under comparable conditions.
- Field
- Learning Field · approximately 40 acres
- Scope
- One PLU · three separate composites
- Sampling date
- May 5, 2026 · fictional baseline
- Collection depth
- 7 inches · recorded for repeatability
The PDF includes a mock pre-work record with the participant, QI and field-office roles, plus the laboratory-method check and correspondence. In a real project, those records come from the people who performed the work.
02 / Keep the samples connected
A map is the beginning of the report.
Stratified sampling within one approximately 40-acre PLU. The synthetic field is divided into three equal-area landscape strata: west shoulder, midslope and east footslope. One representative location is selected at random within the eligible area of each stratum. At each center, the center sample and four samples 30 feet away are combined into one composite. The three composites stay separate. This design illustrates spatial variation; it is not a replicated management experiment.
EX-S001 · West shoulder
WGS84: 40.902425, -96.699168
EX-S002 · Midslope
WGS84: 40.901572, -96.697504
EX-S003 · East footslope
WGS84: 40.900853, -96.696019
One composite combines the center and four subsamples 30 feet away. Never mix the three composites together. The same IDs follow each bag, laboratory result and interpretation.
03 / Preserve the original evidence
A result needs its method and units.
Invented values below demonstrate all five soil-health indicators plus measured texture and pH. They are not reference ranges, targets or a real laboratory certificate. The PDF shows the laboratory ID crosswalk and a mock source-results sheet.
| Indicator / method | Units | EX-S001 | EX-S002 | EX-S003 |
|---|---|---|---|---|
| Wet aggregate stabilityWet sieving | % stable aggregates | 44 | 57 | 63 |
| Soil organic carbonDry combustion; organic C reported separately from inorganic C | % dry soil mass | 1.4 | 1.7 | 2 |
| Soil respiration24-hour incubation/burst | mg CO2-C/kg dry soil | 38 | 51 | 65 |
| Labile carbonPermanganate oxidizable carbon (POXC) | mg C/kg dry soil | 350 | 425 | 510 |
| Bioavailable nitrogenAutoclaved citrate extractable (ACE) protein | mg protein/g dry soil | 3.6 | 4.2 | 4.8 |
| Texture: sand / silt / clayHydrometer | % / % / % | 60 / 25 / 15 | 40 / 38 / 22 | 32 / 40 / 28 |
| Soil pH1:1 soil:water | pH units | 6.4 | 6.6 | 6.8 |
For a real project, verify the laboratory’s current qualification and exact methods before sampling, follow its handling instructions, and attach its original report. SHE does not perform laboratory analysis or certify laboratories.
04 / Explain what the measurements mean
From a number to a useful next question.
The three composites establish an illustrative spatial baseline. EX-S001 has lower measured aggregation, carbon and biological indicators than EX-S003, while also having a coarser texture. Follow up at EX-S001 with surface-condition and management observations before proposing a change. These data do not prove a treatment effect, a yield response, carbon sequestration or a regional soil-health ranking.
Wet aggregate stability
EX-S001 has the lowest measured stability in this example. Inspect surface sealing and residue cover there; this single baseline does not establish a management cause or an infiltration rate.
Soil organic carbon
SOC concentration increases from EX-S001 to EX-S003 alongside a texture change. These are concentrations, not carbon stocks. No bulk-density measurements or repeated baseline exist to calculate sequestration.
Soil respiration
Compare only with matching incubation and handling protocols. The lower EX-S001 value warrants checking field context; a larger value is not automatically a better overall soil-health rating.
Labile carbon
POXC is a method-specific carbon indicator. The cross-field differences provide a baseline for repeat testing, not a quantity of carbon credits or a universal good/poor threshold.
Bioavailable nitrogen
ACE protein is the selected indicator of an organic nitrogen food source. Do not treat these values as a fertilizer-N credit or convert them directly into a fertilizer rate.
Texture: sand / silt / clay
The measured texture classes differ across the three positions. Interpret carbon and biological indicators in that context; soil-survey texture does not replace this laboratory measurement.
Soil pH
Retain the 1:1 water method with these values. Any lime or nutrient recommendation needs crop, regional guidance and the additional tests appropriate to that decision.
Connect the findings to management decisions
Interpret with restraint while giving the participant useful, practical guidance. This expanded QI discussion is fictional; proposals and agreed actions are distinguished below.
What this means for the operation
Start with the shoulder (EX-S001), where the synthetic field log records thinner residue and the laboratory indicators are lower. Its coarser texture is a competing explanation, so the result identifies a place to investigate rather than proving that management caused degradation. Discuss what the participant can realistically change with existing equipment, available labor and the crop rotation.
Options to investigate
If a follow-up visit confirms exposed or sealed soil, discuss retaining more residue or testing a locally suitable cover-crop approach on a manageable area. Check establishment and termination timing, seed and equipment costs, water availability and the participant's capacity before selecting an option. The baseline alone does not justify a whole-field prescription. Keep any proposed trial clearly separate from the agreed monitoring plan.
Agreed next steps in this example
In this fictional case, the participant and QI agree to inspect EX-S001 before selecting a trial. At the next suitable field visit, the QI will record surface condition and fixed-view photographs; the participant will supply residue, traffic and recent-input records. No management trial, fertilizer change or additional expenditure has been agreed.
Decisions and follow-up checks
After that visit, document the participant's decision, responsible person and timing. If a trial is selected, define a feasible comparison and measures of success before it starts; observations from these three landscape positions alone cannot estimate its treatment effect. Repeat photographs from the same marked viewpoints and repeat laboratory sampling on the conservation-plan schedule. Record method changes and uncertainty alongside any apparent improvement.
Make the next visit comparable
Review field conditions and management records each spring. For this fictional three-year plan, repeat the laboratory sampling in early May 2028, subject to the actual contract and conservation plan. Return to the same WGS84 centers, use the same five-subsample geometry and 7-inch depth, and match season, moisture, recent-input history, laboratory, methods and reporting basis. Record any unavoidable change. The participant maintains management records; the responsible QI coordinates sampling and interpretation.
Keep a dated view of the site and each plot.
The PDF now includes a dedicated photo section. This fictional project uses clearly labeled placeholders. For real work, include actual photos with the date, original filename, camera position, viewing direction, sample or plot ID, and observations. Retain the originals and repeat the viewpoints on future visits.
EX-P01 · Learning Field overview
From an identified field-edge marker toward the sampling area. Show the wider landscape and access context. Record the camera coordinates and direction.
EX-P02 · EX-S001 / west shoulder
Fixed viewpoint facing the composite center; record the bearing. Document residue and surface condition, including any visible sealing.
EX-P03 · EX-S002 / midslope
Fixed viewpoint facing the composite center; record the bearing. Show crop stage, residue and surface condition for later comparison.
EX-P04 · EX-S003 / east footslope
Fixed viewpoint facing the composite center; record the bearing. Document residue and moisture context without inferring soil-health change from appearance alone.
05 / Know who finishes the work
The software organizes. The QI reviews and delivers.
SHE helps assemble
- Participant, project, sample and result records.
- Connections between imported sampling plans and the report.
- Completeness prompts and indexed supporting evidence.
- Report sections and exports from information the practitioner enters.
The QI supplies and checks
- Qualifications, conference records, actual collection records and valid maps.
- Laboratory qualification, methods and original results.
- Interpretation, limitations and the monitoring plan.
- Required attachments, certification, signatures, privacy choices and delivery.
QI certification, participant acceptance, and NRCS administrative review now appear on the cover continuation, page 2 of the PDF. The example has mock attachments, photo placeholders and unsigned review spaces. It is not an accepted submission or a practitioner’s sign-off. Prepare participant and office sets for real work; agree how sufficient completion evidence reaches NRCS when the participant chooses to withhold numerical results. Sending results for SHAPE development is a separate, optional choice.
For Qualified Individuals
Build this package for your own client.
The automated workspace carries your sampling plan into field sheets and labels, keeps entered results and photos with the project, checks missing information, and assembles report copies for participant and NRCS review. Save revisions as the work develops. You supply the evidence and professional interpretation.
Preview intake for free. Complete one project with a $49 Project Pass, an eligible subscription, or an earned course credit. Laboratory testing, sampling, and QI services are separate.
No account is needed to explore the fictional example. Find a Qualified Individual if you need help carrying out the work.
Use alongside the current requirements
Source check: September 17, 2026. Confirm current national documents, state instructions, the contract and receiving-laboratory protocol before a real activity.
- NRCS CEMA 216 standard (listed 04-2026; document footer January 2026R)
- NRCS CEMA 216 Job Aid (4-2026)
- NRCS CEMA 216 FAQ (April 10, 2026)