Hi
Welcome to OSM
Concerning relation 17722831 -farmland;
If this has an address then the address tags should be on the relation, not on a node as a member of the relation. 
As the address is within a building I have left that there - deliveries would then be directed to that building. I have removed the address node from the relation, but added the farmyards as inners in the relation. 

The address node in the relation raised a flag in QA tools that I use, hence my interest here. Keep mapping!