How will your tax policy affect a typical NZ sheep and beef farm?

We have a 650ha family owned and run sheep and beef farm, GV of around $3m, equity of $2.5m. Last few years average profit around $100k maybe less which isn't much when it needs to be divided up between several family members. So the farm is probably a fairly unproductive asset by your standards, would this mean it gets hammered with extra tax? Cheers