Aldi has said that in future it:
- will not force suppliers to fund promotions such as buy-one-get-one-free;
- will not charge suppliers for customer complaints, missed or late deliveries;
- will pay the agreed price, with non "back margin" mechanisms such as penalties or over-riders;
- will commit to buying seasonal British fruit and vegetables, which currently account for 40 per cent of Aldi's fresh produce sales, putting it above the industry average.
NFU horticulture chairman Guy Poskitt said: "Aldi is looking at a wide range of ways of working with its suppliers and the NFU believes that this could see a big sea-change in the way the whole of the supply chain works.
"We know that there are other retailers who have best practice measures in place, but we must praise Aldi for doing so publicly and by committing to the key aims of our pledge."
Aldi managing director of buying Tony Baines said: "True to our family values, we treat growers and packers across the UK equally and fairly, allowing us to build long-term and sustainable relationships with them.
"This was recently recognised by the Groceries Code Adjudicator's annual supplier survey, which named Aldi as the best performing grocery retailer for compliance."
THE NFU began urging retailers to sign its Fruit & Veg Pledge three years ago, but Poskitt admitted a year later that it was "very hard" to get them to sign.