Test next season
before you plant.

Real NASA weather for your exact field, a crop plan that fits it, and Ali to help you every step.

Plan my farm Ask Ali

Your weather

5 Help from nature

6 Plan your crops

Tap a box to change the crop.

Watch it grow press Run it first

Nov · Year 1

What should I plant?

Season
Rank by

Crops that feed the soil

The bar shows how good a harvest to expect in a normal year. A computer guess: check with your local farm advisor.
How good is this AI?

Plant Doctor

Photo of a sick plant in, name and fix out.

Close upDaylightSick leaf in focus

No photo? Pick what you see

My Farms

Time-lapse

Watch your farms over 10, 20 or 30 years.

1 Pick farms

2 Pick the future

Years
Weather
Speed
Every farm gets the same weather, so it is a fair race.

Missions

Fix a farm in trouble. Fewer hints, more stars.

The NASA data behind the simulator

Each satellite measures a different part of the farm's story. The simulator brings them to one monthly time step for one field, so they can be compared.

Use your own field's NASA POWER data

The six built-in regions use approximate long-term monthly values. For your real field, get the data from NASA POWER:

  1. Enter your field's latitude and longitude, then open the link. It asks NASA POWER for monthly climatology of T2M_MAX, T2M_MIN, PRECTOTCORR, GWETROOT.
  2. Save the page that opens as a .json file. A CSV from the POWER Data Access Viewer also works, including monthly time series.
  3. Load the file below. Your field becomes a new region in the Farm Lab.
Open NASA POWER request ↗

Open source

Field Shift is free under the MIT licence. Read every line, change the crop numbers below without writing code, or download the whole project and make it your own. It is one HTML file, so it runs in any browser with no install.

Crop book

Your local prices, yields and limits. Changes apply at once to the simulator, Missions and Time-lapse, and are kept in this browser. Edited numbers are highlighted.

Files


    

  

  

    
Common changes

    
    
      
  • Add a crop: copy one line in CROPS at the top of src/engine.js, give it a new name and numbers, and it appears everywhere. Drawings follow its sprite type and colours.
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  • Add your region: add an entry to REGIONS in src/engine.js with 12 monthly values from NASA POWER, or simply load a POWER file in the NASA Data tab.
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  • Change the look: colours and fonts are the variables at the top of the <style> block in index.html.
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  • Retrain the AI: run node training/gen.js 6000 to make training data, then python training/train.py to write a new src/model.json, then python build.py.
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