The Reserve Bank's reviewing its capital adequacy ratios - which are said to be costing farmers a fortune

Concerns have been raised since 2019 when the rules were tightened - that they've driven up the cost of lending and reduced economic growth.

Federated Farmers' Richard McIntyre says they're among the strictest in the world - and estimates they've sucked about 600-million dollars out of the agriculture sector every year.

He wants to see the return of pre-2019 requirements - which were more aligned with the rest of the world.

McIntyre says that would see a whole lot of money in the agriculture sector benefiting rural communities and the wider economy.