De or het melkquotering?

The correct Dutch article is:

de melkquotering

Rule Words ending in -ing: almost always de. See the rule

How to use melkquotering

the melkquoteringde melkquotering
this melkquoteringdeze melkquotering
that melkquoteringdie melkquotering
our melkquoteringonze melkquotering
your melkquoteringjouw melkquotering
every melkquoteringelke melkquotering
which melkquotering?welke melkquotering?
a big melkquotering / the big melkquoteringeen grote melkquotering, de grote melkquotering