Things like vertical food farms, huge greenhouses, intensive farming help us become (one of) the biggest
- milk and milk powder producer
- apples (apples in South Africa are likely to come from the Netherlands)
- tomato’s in Spain come from the Netherlands
A quick Google search says Spanish yearly tomato production is 4x - 5x bigger than Netherlands'. I don't think your example, albeit possible, is correct.
Apples in South Africa are not likely to come from the Netherlands. SA exports about $736m in apples and pears, imports about $284k, not from the Netherlands.
It depends on what you count, as "agriculture exports" could (probably do) also include, apart from food items:
- Agricultural machines
- Seeds
- Agricultural patents on e.g. seeds
- Fertilizers
- non-food plants (flowers etc.)
- (Animal) vaccins
- other agricultural products processed ("produced") in the Netherlands
And if you count those by value, then it is certainly possible that NL gets a large share of world exports by value: other countries like Germany may produce more, but if they don't export the valuable products it won't show up on world export stats.
Things like vertical food farms, huge greenhouses, intensive farming help us become (one of) the biggest
- milk and milk powder producer - apples (apples in South Africa are likely to come from the Netherlands) - tomato’s in Spain come from the Netherlands
Etc etc.