Environment Secretary Theresa Villiers has sought to reassure farmers that high food standards will be protected as the UK seeks trade deals after Brexit.
Concerns have been raised that food produced to lower environmental and welfare standards than are permitted in the UK will be allowed into the country in future trade deals, undercutting the domestic farming sector.
But Ms Villiers told the Oxford Farming Conference: “Our strong British brand is built on high standards to which we hold ourselves.
“The high standards of British farming are the backbone of our biggest manufacturing sector of food and drink.”
She said the UK could maintain and enhance its standards amid future negotiations with the EU and other countries.
And she promised to work with the farming sector to understand their concerns and make sure their voice is heard in international talks.
“We will not dilute our strong environmental protection, we will not dilute our high standards of food safety and animal welfare,” said Ms Villiers.
NFU England and Wales president Minette Batters said 2020 was “about getting Brexit right”.
She said: “Be under no illusion, we face the greatest reset in agricultural policy since the 1940s.”
Ms Batters called for the government to legislate to set up a commission on food standards to scrutinise trade deals and protect the UK’s high standards on food, and to lead on climate friendly farming.
Friends of the Earth chief executive Craig Bennett said changes to agriculture were needed to tackle the nature and climate emergencies, including lower pesticide use, boosting trees and agroforestry and reducing meat consumption to ensure “less but better meat” production.
And he warned: “We could have the best system here in this country but if we do trade deals with other countries that allows imports of food that have been produced to lower standards, that will undercut our farmers and be devastating for industry.”
In a question and answer session at the conference, a straw poll suggested delegates were not convinced the government would defend their interests in international talks.
Pressed on the issue, Ms Villiers said there would be an armoury of tariffs that would make sure the UK can maintain standards and that imports do not undercut them.