Choose one of three approaches. The steps for that option appear below.
Choose an option above. On a phone, swipe the tabs left or right to see all options →
Julius AI works the arithmetic as low, base and high cases from your records and assumptions. You recompute it all.
Write records, assumptions
Work the arithmetic
Recompute all cases
Draft one-page summary
Check, remove advice
Use: The grower
For each field write: label, area with unit, crop, plant count if known, past harvest you recorded; then your low, base and high assumptions.
Check each record is from your own notes, each assumption is your choice and units are written.
Use: Julius AI
Ask Julius AI for the yield arithmetic per field in low, base and high cases, every calculation shown.
What to paste into the tool
Task: A yield estimate per field in a low, base and high case, with every calculation written out. Use only the records and assumptions below. Multiply step by step and show units at each step. Do not add any yield figure, weather effect, price or assumption that is not below. If a record is 'not known yet', do not estimate it, list it under 'missing' and show which estimate it blocks. End with a table of all assumptions used. Records: [paste records]. Assumptions: [paste assumptions].
Use: The grower
Recompute every field's three cases with a calculator, check units, fix errors, delete any assumption the tool added.
Check every figure matches a hand calculation and every assumption in the table is one you stated. Write beside each estimate: 'Estimate based on stated assumptions, not a forecast'.
Use: Claude
Ask Claude for a plain one-page summary of the checked estimate with the missing-records list.
What to paste into the tool
Task: A one-page summary of the yield estimate below for my own planning. Use only the numbers below. Show low, base and high per field, list the assumptions beside them and list missing records. Say in the first line that this is an estimate based on stated assumptions and not a forecast or a promise. Do not add advice about selling, loans, insurance or planting. Estimate: [paste checked estimate].
Use: The grower
Compare every number with your checked estimate and remove any advice; decide yourself how to use it; revisit assumptions after the next measured harvest.
Check every number matches the checked estimate. The assistant decides nothing.
Gemini builds the estimate as formulas reading assumption cells you can change. You test the formulas by hand.
Type records table
Build estimate sheet
Read, recompute formulas
Test assumption changes
Use: You
Type your records into a table: field label, area and unit, crop, plant count, past harvest. List assumptions as low, base and high numbers.
Check the figures are from your own notes and every assumption is your choice.
Use: Gemini
Ask Gemini for an estimate column per case that reads its assumptions from separate labelled cells you can change.
What to paste into the tool
Task: A sheet that calculates estimated yield per field for a low, base and high case. Use only the records in this sheet and the assumption cells I give. Each assumption must sit in its own labelled cell that the formulas refer to, so I can change it. Show units. Leave the estimate empty and write 'missing' where a needed record is missing. Do not add data from outside this sheet. Assumptions: [paste assumptions].
Use: You
Read each formula and recompute every field in all three cases by hand or with a calculator; check units; fix errors.
Check the formulas match hand calculation and the assumptions sit in their own cells. Write 'Estimate based on stated assumptions, not a forecast' at the top.
Use: You
Change one assumption at a time; note which assumptions matter most; decide yourself how to use it. Replace assumptions with measured values after harvest.
Check the note records what the sheet shows. The assistant decides nothing.
Claude works the low, base and high estimate with units shown. You check every figure and approve.
Prepare records, assumptions
Work the three cases
Check, approve worksheet
Use: The grower
Have ready: your field records and the assumptions you chose.
Check the pack holds only your own records and assumptions.
Use: Claude
Ask Claude to work the low, base and high estimate with units shown and questions for missing records.
What to paste into the tool
Task: Work a crop yield estimate from my records and assumptions below. Give low, base and high cases. Use either area multiplied by yield per unit area, or plant count multiplied by yield per plant. If I start from plant density, first multiply area by plants per unit area to get plant count. Apply any stated waste fraction once. Show the units at each step and write each assumption beside the calculation it is used in. Use only my supplied records and assumptions; do not add yield figures or assumptions of your own. Where a record is missing, ask me a question instead of inventing a figure. Do not give advice. Do not send, sign, pay or contact anyone. Records and assumptions: [paste the checked pack].
Use: The grower
Check every figure and unit against your records; recompute any line that looks wrong and correct the worksheet yourself; decide how to use it.
Recompute or spot-check each calculation against the records and confirm every change was your own decision. The assistant decides nothing. Write 'Estimate based on stated assumptions, not a forecast'.
Best when: A few fields with simple records; you want arithmetic laid out
What it does: Julius AI shows each calculation; Claude writes the summary
Strong at: Low, base and high cases show assumption sensitivity
Limit: You must recompute every figure and unit yourself
Free plan: Claude: Yes, limited; Julius AI: Yes, limited (25 daily credits)
Best when: Many fields, or you want to keep changing assumptions
What it does: Gemini holds records and formulas in a reusable sheet
Strong at: Assumptions live in cells you can change
Limit: You must read and test the formulas
Free plan: Yes
Best when: You want the arithmetic done from your records, steps shown
What it does: Claude works the estimate; you check and approve
Strong at: Every assumption stays yours; missing records become questions
Limit: An assistant slip can pass if the check is rushed
Free plan: Yes, limited (5-hour session and weekly caps)
Before you paste into any AI tool, remove any confidential information. Put it back at the end.
Deciding between Claude and Gemini for this? See the comparison.
Every assistant step is followed by you recomputing or checking the output against your own records.
The estimate is labelled as based on stated assumptions, not a forecast.
Nothing is sent, sold, signed or decided by an assistant.
Check the result against your original inputs. Approve it before sharing or acting.