> Moving the production to a different country would be a solution, since the Netherlands is currently producing way more nitrogen per area of land than other European countries.

Isn't this just because it is producing highly efficiently, at least in terms of land use? If you move the production elsewhere, it will consume the same amount if nitrogen on a wider area, so with worse impacts on wildlife and biodiversity.

No, because the concentration is a big part of the problem. If things were more spread out, but with the same total amount of nitrogen, there would be less of an issue (and this is why Germany has less strict rules on nitrogen).