The devolved nations are being urged to 'speak with a united voice' to protect interests such as agriculture during the Brexit negotiations.
In a letter to other administrations, Scotland's Rural Secretary Fergus Ewing set out the need for a unified position on matters no longer subject to EU law.
He says these are the responsibility of the devolved administrations such as farming, fisheries and environmental protection.
Mr Ewing also said it was clear repatriated powers in these areas would be the responsibility of Edinburgh, Cardiff and Belfast.
The letter sets out growing concern that the UK Government is not listening to the devolved administrations on matters linked to rural policy as it seeks new UK frameworks to replace those currently provided by membership of the EU.
Mr Ewing said: “I believe Scotland, Wales and Northern Ireland share the same position that full responsibility for the agriculture sector will sit with devolved administrations following the UK’s withdrawal from the EU, as now.
“That is why I have written to my counterparts in the other devolved governments calling for a united voice in discussions with the UK Government. This can help secure the best possible outcome for the industry across the UK.”
'Grabbing power'
Earlier this week, Scotland's First Minister Nicola Sturgeon accused pro-Brexit ministers in London of 'grabbing power' from Scotland by refusing to honour referendum pledges to protect the country’s farmers.
She said it is 'vital' for farming powers to be transferred from the European Union direct to Holyrood.
Thinktank IPPR North recommends powers ‘leapfrog’ from the EU to devolved areas, with new rural devolution deals which would link national agricultural policy to local economic issues – such as communities, flooding and local labour markets in particular, especially as the EU seasonal workers policy looks to come to an end.
