Dutch Agriculture

Recently saw an article/tweet/blogpost/something which made great claims about the productivity of Dutch agriculture.  I think maybe it was claiming they were the top exporter of agricultural products.  Immediately my contrarian nature kicked in, and I was sure someone was in error on the Internet.     My logic was that the Dutch export flowers, a high value crop, perhaps the highest value legal crop, so the claim was misleading.  Dairy products would also be big, and high value.  However I didn't challenge it on line, just in mind

Now comes FiveThirtyEight with their significant digits, and this fact: 

144,352 tons of tomatoes per square mile

The Netherlands has been investing in new and improved ways to maximize the efficiency of humane farming. Acre for acre, the Dutch are the best on earth: using greenhouses they get 144,352 tons of tomatoes out of every square mile, with the closest runner up — Spain — getting a fraction of that. Essentially, the Dutch decided to be a food R&D lab for everyone else — the secret seems to be greenhouses — and the outcome is they export more food, judging by dollar value, than every country except the U.S. [National Geographic]

So I guess I need to apologize to the Dutch--they aren't just a one-trick pony.