This is the machine-readable form of the reference layer behind this site: 54 concepts across structure, climate, screening, irrigation, crop protection, production outcomes and climate zones, plus 109 glossary terms.

What is in it

Each concept carries a definition, a set of facts, and typed relations to its neighbours. Facts are published with their unit and the conditions they hold under, because a number without its qualification is not checkable — a screen that cuts heat loss by 47% does so while closed, and saying so is the difference between a figure and a claim.

Relations use SKOS, so a consumer can walk from a climate zone to the systems it governs. Where a concept matches an entry in the FAO's AGROVOC agricultural thesaurus, that mapping is published too.

How to use it

/kg/index.json — the full graph as JSON-LD.
Any concept page with .md appended returns plain text: definition, facts table, prose and FAQs, no navigation. Try /greenhouse-horticulture.md.
/llms.txt — the machine index of this site.

Licence

Published under Creative Commons Attribution 4.0 International. Use it, quote it, build on it — attribute it to DutchGreenhouses Knowledge Graph — dutchgreenhouses.com.

Why we publish it

Greenhouse knowledge is spread across standards, institute reports and forty years of Dutch practice, and very little of it is written down in a form a machine can read. We wrote this layer to answer questions properly on our own pages; publishing it costs nothing extra and makes the sector easier to understand for everyone building in it.

If something here is wrong, we would rather know. Tell us.