FarmShift

Multi-Season Crop Rotation
Guided by NASA Satellite Data

FarmShift evaluates the full 2-season rotation horizon so farmers can plan around water scarcity, soil health, and real climate risk.

3×3=9
Rotation Paths
210 d
NASA POWER Cache
FAO-56
Physical Core
0%
Black-Box AI
Overview

What is FarmShift?

FarmShift is a decision-support tool for planning 2-season crop rotations. You describe your current crop, water access, and soil, and it ranks nine possible planting sequences by water risk, nitrogen effects, and pest pressure, using 210 days of verified NASA satellite data. Every score comes with its reasons.

Step 1

Describe your field

Pick your current crop, water access, and soil to begin. Free to use, nothing to install.

Step 2

See the ranking

Nine rotation paths ranked safest-first. Each score blends water risk, nitrogen effects, and pest pressure with your priority slider and shows its reasons in plain words.

Step 3

Choose & print

Open the “Why?” audit, compare two options, print the plan to take to the field.

Our ranking system
Safe & Feasible: go, the risk is small.
Needs Monitoring: workable, but watch the water.
High Risk: likely to fail when dry.
Score 0–100: higher means a better fit for your priority: water risk, nitrogen, and pests weighed against your slider. Not a harvest forecast.
The Core Concept

What FarmShift Does

Instead of single-crop predictions, FarmShift evaluates the full 2-season rotation horizon.

Multi-Season Horizon

Farmers fail not in Season 1, but because Season 1 depletes irrigation water or multiplies pests that collapse Season 2.

Biophysical Trade-Offs

Soybean in S1 fixes 35+ kg N/ha, cutting fertilizer costs. Maize in S2 cuts irrigation demand by up to 46% vs continuous rice.

No Black-Box AI

Every score shows explicit reasons and the exact change needed to reverse it, with no unexplainable AI recommendations.

Engineering & Science

How It Was Built

A four-layer physical pipeline from NASA satellites to field-level decisions in Majalengka, West Java.

01 · Data

NASA POWER Ingestion

Daily solar radiation, rainfall, temperature, VPD, and wind speed via a 210-day verified NASA POWER cache.

02 · Physics

FAO-56 Penman-Monteith

Calculates reference evapotranspiration (ET₀) and crop water demand (ETc) with hard failure thresholds.

03 · Agronomy

Indonesian Soil Calibration

Grounded in West Java vertisol clay dynamics and real canal access (technical vs rainfed).

04 · Runtime

Offline-First Web Engine

Zero-overhead client runtime for rural extension workers. 21/21 Pytest unit tests passing.

Interactive Preview

Try the 2-Season Shift Space

Pick two crops and your field's water access to get an instant rotation score.

66.5
/ 100 · Alignment Score
Water Demand
800 mm
Nitrogen Credit
Neutral
Access

Explore FarmShift

Each portal is tailored to a different perspective.

For Farmers & Extension Officers

Farmer Decision Portal

All 9 rotation combinations, side-by-side A/B comparison, and printable field plans.

Open Farmer Portal
Scientific Evaluation

Agronomist View

4-step scientific evaluation with shift-space explorer, sensitivity analysis, and raw JSON diagnostics.

Open Agronomist Portal
Live now: Majalengka 2024 verified cache (210 days). Other regions and seasons are conceptual. Source data: NASA POWER Daily Point API.
Q & A

Frequently Asked Questions

Does FarmShift tell me what to plant?
No. It shows the consequences of each choice (water, pests, fertilizer), so you decide. Our principle: help you understand, never command.
Is it free? Do I need internet?
Free, no sign-up, and it runs in an ordinary phone browser and is built for village field extension workers.
Is my farm data stored anywhere?
No. Your choices live only in your browser and vanish when the tab closes. Your run history is kept on your own device only.
Why only Majalengka?
Our verified 210-day satellite cache currently covers Majalengka 2024 as the pilot. Other regions and seasons are still conceptual.
Does a score of 79 mean a good harvest?
No. The score rates how well a rotation fits your priority (water safety vs practicality) and its failure risk. It is not a harvest forecast.
What do S1, S2, ETc mean?
S1 is the next planting season, S2 the one after. ETc is a crop's daily water need in millimetres. Water risk is the chance your crops go thirsty.