Farmers are demanding that the victorious Leave campaign honours its promise to provide them with financial support to replace the EU’s Common Agricultural Policy, which currently provides 55pc of their income.

Pro-Brexit farming minister George Eustice insisted during the campaign that a “Brexit dividend” meant the Government could and would do so.

Meurig Raymond, president of the National Farmers’ Union, called for a new “British agricultural policy” with “guarantees that the support given to our farmers is equal to that given to farmers in the EU, who will still be our principal competitors”.

UK farmers receive between £2.4bn and £3bn in subsidies from the EU each year, while the average income of a farmer was just over £20,000 in 2014. Farmers also want to see the bureaucracy of the CAP, which was widely criticised by eurosceptics, replaced with a simpler scheme tailored to Britain’s needs, and assurances that they will still be able to access seasonal labour.