Crop Water Requirement Calculator
Worksheet for estimating crop water requirement by listing crop, growth stage, weather inputs and rainfall, then comparing need with water applied. Fill in each line as you gather facts and keep the sheet with your field records.
Download free PDF1 page, US Letter, prints clean in black and white
WorksheetSoil, Water & ConservationFree PDF
What you fill in
- Crop and field
- Growth stage details
- Reference evapotranspiration source
- Crop coefficient source
- Rainfall received details
- Irrigation applied details
- Soil water holding notes
- Estimated water need
- Adjustments planned details
How to use this worksheet
Fill it out in pencil first, check the numbers against your records, then ink it. Make a fresh copy for each field, pen or enterprise.
Where to check the details
This sheet is a general template, so confirm specifics with your own manuals, labels and local rules. For current official guidance, start with eXtension and USDA NRCS.
For more in this area, see the planting dates and harvest timing. Between chores, farm.FM has farm humor, including Crop Circles & Cowboy Hats, and farming farm stories.