The Problem
The National Turfgrass Evaluation Program (NTEP) publishes valuable agronomic trial data, but the records are dispersed across decades of disparate PDF and tabular reports. Comparing turfgrass cultivars across multiple multi-year trial cycles and identifying varieties proven to perform in specific geographic regions requires laborious manual cross-referencing.
The Approach
PoaIndex extracts, audits, and normalizes historical trial results into a structured turfgrass quality corpus. Its recommendations weigh local trial evidence, regional multi-year support, recency, and confidence adjustments; turf-zone information is presented separately as supporting context.
Selected Features
- Curated historical quality corpus covering multiple grass species and multi-year trial cycles.
- Recommendations informed by local trial evidence, regional support, recency, and confidence.
- Cultivar search and side-by-side trial quality comparisons.
- Read-only edge API designed for high-availability querying without credential barriers.
- Clean static web exploration interface requiring zero account creation.
Technical Description
Ingestion & certification pipeline built in Node.js and TypeScript. Read-only HTTP API hosted on Cloudflare Workers backed by Cloudflare D1 serverless SQLite. Static web front end built with Vite and React. Cold-storage source archive stored in Cloudflare R2.