Climate-based watering budget
Estimate irrigation from entered reference evapotranspiration, plant factor and effective rainfall.
Your plan
Complete the inputs to see the result.
What this assumes
- Enter reference evapotranspiration and effective rainfall for the same planning period from a local public weather or irrigation source.
- One millimetre over one square metre is one litre. Effective rainfall is the portion available to plants, not total measured rain.
- This simple water balance excludes soil storage, runoff and watering restrictions. Review local soil, plant and irrigation requirements.
How it works
Put in your numbers
Use your own rates, times and measurements.
See your answer straight away
It works it out as you type.
Copy or print it
Send it on, or keep it with the job.
What it covers: Estimate irrigation from entered reference evapotranspiration, plant factor and effective rainfall.
Free to use. No sign-in needed.
How to use climate-based watering budget
Estimate irrigation from entered reference evapotranspiration, plant factor and effective rainfall.
- Enter irrigated area (m²) and the other measured inputs.
- Check the units and the assumptions below the result.
- Review the result, then copy or print the plan. Signed-in managers can save a private customer snapshot.
Tips and common mistakes
- Enter reference evapotranspiration and effective rainfall for the same planning period from a local public weather or irrigation source.
- One millimetre over one square metre is one litre. Effective rainfall is the portion available to plants, not total measured rain.
- This simple water balance excludes soil storage, runoff and watering restrictions. Review local soil, plant and irrigation requirements.
Questions
Where do the input values come from?
You enter your own values. Start with irrigated area (m²) and use measured quantities, product specifications or your chosen planning assumptions.
What assumptions affect the result?
Enter reference evapotranspiration and effective rainfall for the same planning period from a local public weather or irrigation source. One millimetre over one square metre is one litre. Effective rainfall is the portion available to plants, not total measured rain. This simple water balance excludes soil storage, runoff and watering restrictions. Review local soil, plant and irrigation requirements.
Can I save this against a customer?
Signed-in Field managers can open the Toolbox version and explicitly save the inputs and result to their private customer history.
Does this book work or place an order?
This prepares a planning result. Review the scope and use the existing job, quote, schedule or supplier workflow separately when ready.
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Compare options and combine tasks
Keep up to four options to compare, or combine separately calculated tasks into one job. These snapshots last only while this page stays open. Use Save your work for a private CRM record.