De or het kweekconditie?

The correct Dutch article is:

de kweekconditie

Rule Words ending in -tie and -sie: almost always de. See the rule

How to use kweekconditie

the kweekconditiede kweekconditie
this kweekconditiedeze kweekconditie
that kweekconditiedie kweekconditie
our kweekconditieonze kweekconditie
your kweekconditiejouw kweekconditie
every kweekconditieelke kweekconditie
which kweekconditie?welke kweekconditie?
a big kweekconditie / the big kweekconditieeen grote kweekconditie, de grote kweekconditie