DRIP

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Click on a field from the left sidebar or directly on the map to display a plot of the daily soil water balance.

No Field Selected
Click on a field from the left sidebar or directly on the map to display real-time moisture depletion, daily water balance logs, and irrigation schedules here.

Field planner

Daily Water Balance

Rain · Irrig OK Stress

↺ Restore original rain

Field Settings

Field name

Crop

Planting date

Max root depth (in)

Root profile

▸ Edit Kc curve

Drag ● up/down → Kc value · left/right → stage length.

Soil

Dominant soil texture ✓ Estimated from USDA soil survey data

Initial soil water (% TAW)

Irrigation System

Irrigation system

Efficiency (%)

System capacity

Seasonal allocation (in)

Irrigation management

Irrigation strategy

MAD trigger

Application depth (in)

Hold irrigation if rain is likely

Skip when % chance within day(s)

Include in morning brief & alerts Off = this field never appears in the daily brief or notifications (e.g. fallow or low-priority fields).

Import fields

Some fields in this file match ones already on this device (same field ID). New fields import either way — choose what to do with the matches.

☁ Backup & sync folder

Pick a folder and DRIP saves each field as its own JSON file, updating them as you edit. Point it at a synced folder (OneDrive, Dropbox, iCloud Drive) and open the same folder on another device to pick up where you left off. Everything stays on your machines — no server, no account.

Not connected.

✓ Connected — every change saves automatically. You can close this window; there's no need to save by hand. Load from folder pulls in edits made on another device.

This needs the File System Access API — available in Chrome and Edge on desktop, not Firefox or Safari.

Best with one device at a time. If two devices edit the same field while both are offline, your sync service may keep both as conflicting copies.

About DRIP

DRIP — Daily Rootzone Irrigation Planner is a field-by-field irrigation scheduling tool that combines daily weather data with a soil water balance model to help farmers decide when and how much to irrigate.

Weather data is retrieved from Open-Meteo (open-source, CC BY 4.0). Soil texture auto-detection uses the USDA Web Soil Survey dataset. Evapotranspiration is estimated using the FAO-56 Penman-Monteith method [5].

Developed by the Soil Water Processes Lab, Department of Agronomy, Kansas State University. For questions, feedback, or licensing inquiries, contact andrespatrignani@ksu.edu

You are free to use, copy, and adapt this software for noncommercial purposes, including use by individual farmers, ranchers, agronomists, researchers, and public institutions.

Commercial use is not permitted without written permission from the authors. This includes, but is not limited to, embedding this software in a commercial product or service, white-labeling, or reselling access to it. Full license text: polyformproject.org.

📍 Set measured soil water

Enter a value from a probe, sensor, or the feel method. The water balance is re-anchored to your measurement on that date and runs forward from it — one number corrects any drift the weather-only model has accumulated.

Measurement date

Units

Soil water (% of total available water)

🗺 Import field boundaries

Assign a crop to each boundary (or mark it Fallow / skip to leave it out). Soil texture is detected automatically from the field location; everything else uses your usual defaults and can be edited per field afterwards.

Set all crops to

Field	Acres	Crop	Planting date	Rainfed