Precision Agriculture Knowledge Engine

Select your crop and symptoms to get a diagnostic recommendation.

How Chikara Reasons — Worked Examples

Real diagnostic reasoning chains, shown step by step, so you can see how a symptom becomes a recommendation — not just the final answer.

◆ Minimum Data Collection

• Soil pH: ≥1 sample/0.5ha, GPS-tagged
• Soil organic carbon: ≥1 sample/ha
• P & K: ≥1 sample/ha (Olsen-P, ammonium acetate)
• Daily Tmax/Tmin throughout season
• Rainfall per event throughout season

◆ Decision Cycle

• Fertiliser justified by soil test, not blanket
• Irrigation justified by soil moisture/ET data
• Weekly pest scouting (vegetative); bi-weekly (reproductive)
• Yield recorded per management zone

◆ IRA Epistemic Labels

KNOWN Replicated trial data across ≥3 seasons

INFERRED Single-season observation or modelled

HYPOTHETICAL Untested proposal requiring validation

◆ Vianté Precision Reasoning Layer

Information Gap Principle: Yield gap = information gap first. Add data before inputs.

Cost Compression Logic: 80% of commercial PA benefit at 5% of cost.

Indigenous + Digital Fusion: ITK = Sensor Layer Zero. Validate, don't replace.

Individual — $1/month

$1/mo

• Everything in Free
• Live weather & ET₀ radiation data
• Cross-device record sync
• Knowledge base updates as they're published

Season Pass — $10/season

$10/season

Same as Individual, priced to match the farming calendar instead of the calendar month.

Institutional — Custom

For banks, NGOs, agro-dealers, and off-taker/outgrower schemes. Priced per organisation, not per farmer — the farmer's own tier stays free or low-cost regardless.

• ZPAS-1 Verified Data Packet API — for loan underwriting
• Aggregate M&E dashboard — KNOWN vs HYPOTHETICAL coverage by district
• Targeted, opted-in input-demand leads for agro-dealers
• Per-farmer-per-season outgrower monitoring license

Why this shape

Institutions pay for verification and aggregation of data a farmer already produced by using the free tool — never for access to the tool itself. That's the line: sell what the farmer doesn't need back, not what they do.

Data Saver Mode

Turns off blur effects, the spinning Halo ring, and background animations to run smoother on older or budget phones. Every feature stays available — it just renders simpler.

Demo Data

Populate a few sample farm records so you can see the Dashboard and Farm Records views with real numbers. Clearly marked, removable in one tap.

Guided Tips

First-time coachmarks explain what each control does. Turn them back on if you'd like the walkthrough again.

Sound

Every sound pairs with an existing haptic buzz or visual cue — sound is never the only signal. Muted by default hardware, always optional.

Choose a pack, then tap Preview to hear tap / select / confirm in sequence.

Gestures

• Swipe an IRA badge right/left to preview an epistemic shift (demo only — not saved yet)
• Open any knowledge item to add your own Indigenous Technical Knowledge note, saved on this device
• Pull down on Farm Records to trigger a sync check
• Tap and hold the Halo to drag it anywhere on screen

About

Chikara Precision Agriculture Advisor, for every Zimbabwean household. Offline-first. All data stored locally on this device — nothing is transmitted.

Connectivity Offline Mode

This app works fully without internet. When connected, it can optionally reach the Chikara network for the features below — nothing leaves this device unless you're online and these are switched on.

Online features are architecture-ready but not yet connected to a live server in this build.