Thanks again for your advice.  Not used the "OSMUK Cadastral Parcels",  That will make it easier to spot land offset. 
Made some change (see changeset 163783773)

Seems some of the land is used for growing grass for hay.  though the fields seem to change over time, switching between grass lands and pastures. 

For now i just marked  some of the field as crop=grass and made the field a single area so it can be easily changed to meadow. 

Having a few fields as farmland shows that there is a mix use in the area. (that the way i see it).

Going to make a few more tweaks to this area, noticed that allot of trees have been planted so may need to survey the area. 
