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Record-Keeping for Smallholder Farmers: The Numbers That Tell You Whether a Crop Made Money

Most farmers cannot say whether last season's crop made a profit. A few simple records, kept from the first day, answer that question and make every following season better.

RootRise Team · 2026-10-07 · 8 min read

Ask a farmer whether last season was good, and you will usually get an honest answer based on feel. "The rain was kind." "The price was bad." "I made something." What you rarely get is a number: how much did the crop cost, how much did it earn, and what was left?

That is not because farmers are careless. Farming is busy, and records feel like extra work on top of work that never ends. But a farm that does not keep records is like a shop that does not count its till. You can be busy, even successful, and still not know whether you are making money or slowly losing it.

This article explains what is worth recording, how to turn the records into decisions, and how to make the habit small enough to last.

What records are actually for

Records are not paperwork for someone else. They answer four questions that decide how you farm next year.

1. Did this crop make money? Not whether it sold, but whether it earned more than it cost.
2. What was my cost per bag or per kilogram? This is your break-even: the lowest price you can accept without losing.
3. Which field, crop or method did best? So that you put more effort where it pays.
4. What happened, and when? Planting dates, sprays, weather, and problems, so that you can repeat what worked and avoid what did not.

And there is a fifth, which becomes more important every year: records are proof. When you apply for credit, join a programme or a cooperative, ask for insurance, or negotiate with a large buyer, a record of what you grow, how much you harvest and what you spend shows that you run a serious business.

The five things to write down

You do not need a complicated system. Start with these five, for every field and every crop.

1. Field and crop details

Which field, how big it is (see Mapping Your Farm Properly), what crop and variety you planted, and the date. Without the area, you cannot calculate anything per hectare. Without the date, you cannot compare seasons.

2. Every cost, as it happens

Write costs down on the day, not at the end of the season, when memory has gone. Group them so you can see where the money goes.

• Land preparation: ploughing, ridging, clearing
• Seed or planting material
• Fertiliser and soil amendments
• Pest, disease and weed control: chemicals, tools, labour
• Labour: planting, weeding, harvesting, including family labour at a fair daily rate
• Water and irrigation: fuel, pump, water costs
• Transport, packaging and storage
• Other: hired equipment, fees, levies, interest

The item most farmers forget is their own and their family's labour. If you do not count it, you will believe you profited when you were really working for nothing. Put a fair daily rate on it, even if you never pay it out.

3. What you did, and when

A short log of activities against each field: irrigation, fertilising, weeding, pruning, pest control and disease control, each with the date and the cost. This matters for two reasons. The cost log adds up automatically to your cost of production. And the dates let you spot cause and effect: "the yellowing began ten days after we fertilised", or "the blight arrived the week after the heavy rain".

4. The harvest

Record how much you harvested, on what date, from which field, in a consistent unit (bags with an approximate weight, kilograms, or baskets). If you harvest several times, record each one. Also record what you lost: spoiled, spilled or rejected, because that is where you find ways to improve (see Cutting Post-Harvest Losses).

If a crop fails, record that too, with the date and the reason. A failed season teaches more than a good one, but only if you wrote it down.

5. The sales

For each sale: the date, the buyer, the quantity, the price, and how you were paid. This is your income, and it tells you which buyers and channels pay best.

A worked example

These numbers are invented, to show the method. Your costs and prices will differ.

A farmer plants 1 hectare of a crop sold by the bag.

The field produces 20 bags, sold at ₦30,000 a bag.

• Income: 20 × ₦30,000 = ₦600,000
• Profit: ₦600,000 − ₦375,000 = ₦225,000
• Cost per bag: ₦375,000 ÷ 20 = ₦18,750
• Profit margin: ₦225,000 ÷ ₦600,000 = 37.5%

That is a healthy season. Now see what the same records say about bad seasons.

If the yield falls to 14 bags (a poor rainy season), and the price stays at ₦30,000:

• Income: ₦420,000. Profit: ₦45,000.
• Cost per bag rises to ₦375,000 ÷ 14 = ₦26,786. The farmer is now only just above break-even.

If the yield holds at 20 bags but the price falls to ₦22,000:

• Income: ₦440,000. Profit: ₦65,000.

So this farmer learns something valuable: a 30% drop in yield hurts far more than a 27% drop in price. That points to where to invest: better drainage, irrigation, seed quality, or timely planting, not just waiting for a better market. Without records, the farmer would only have known that "this year was bad".

Using the numbers to decide

Once you have a season or two of records, you can make decisions that were guesses before.

• Set your price from your cost. If your cost per bag is ₦18,750, you know a ₦20,000 offer is barely worth taking, and a ₦25,000 offer is a good one. You can negotiate calmly when you know your floor. See Price Offers and Group Buys.
• Decide where to spend. Compare cost categories year to year. If fertiliser is a third of your costs, testing your soil may save more than anything else.
• Compare crops. Profit per hectare, not total harvest, tells you which crop deserves your best land.
• Plan your cash. If you know when costs fall and when income arrives, you can see the gaps, and plan to borrow less or sell part of the crop in advance.
• Spot trouble early. If one field's cost per bag is climbing each year, something is wrong with it.

Making it stick

The best system is the one you will actually use.

Keep it small. Five lines at the end of a working day is better than a perfect system you abandon in March.

Write it down at once. Do it the same day, in the same place. A notebook kept in a plastic bag in your work bag works. A phone works better because it cannot get wet or lost, and it can do the adding up for you.

Use a tool that does the sums. A farm app that logs activities and costs against each field, and records harvests, turns the log into your cost and yield without a calculator. AgroPulse is built around this, with a calendar of tasks, an activity log for irrigation, fertilising, weeding, pruning, pest and disease control with their costs, and records for complete and partial harvests. See the AgroPulse page for what it covers.

Include everyone who works. If workers or family members do things in the field, make sure someone writes it down, or tell them what to report.

Review once a month. Spend ten minutes looking at what you recorded. The habit of looking is what turns records into decisions.

Keep the old ones. Records get more valuable with every season, because you can compare years. Do not throw them away.

Common mistakes

• Recording only the money you paid out, and forgetting family labour and the value of your own time.
• Recording at the end of the season, from memory.
• Mixing fields and crops in one total, so that you cannot tell which did well.
• Changing units from one entry to the next. Pick bags, kilograms or baskets, and keep to it.
• Counting sales as profit. Profit is what is left after costs.
• Skipping the bad seasons. They are the most useful ones.

Start this week

You do not need to wait for the next planting. Begin with the crop in the ground now: write down what you have already spent as best you can remember, note the date, and keep adding from today. When you harvest, write down the harvest and the sales. By the end of the season, you will have what most farmers never have: a clear answer to the question "did this crop make money?" And the next season will start with knowledge, not hope.