De or het pomologie?

The correct Dutch article is:

de pomologie

Rule Words ending in -logie: always de. See the rule
Meaning (Dutch) de leer van het fruit en de fruitsoorten

How to use pomologie

the pomologiede pomologie
this pomologiedeze pomologie
that pomologiedie pomologie
our pomologieonze pomologie
your pomologiejouw pomologie
every pomologieelke pomologie
which pomologie?welke pomologie?
a big pomologie / the big pomologieeen grote pomologie, de grote pomologie

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).