That stat while true is very misleading. First of all that's based on money not volume. On top of that the majority of NL's agricultural export is due to the fact that Amsterdam is home to the largest flower/live plant market/exchange in the world. Most of those billions of dollars of exports are in the form of highly expensive decorative plants and/or their seeds/bulbs, not staple crops.

I guess that's all to say if the Netherlands sunk below the sea tomorrow the world would not suddenly be starving. Rich people just wouldn't get their flowers.