More than 90 per cent of respondents said agriculture is important to the economy, up from 83 per cent in 2012. As for looking after the countryside, 75 per cent of people said they believe that farmers have a "beneficial" or "very beneficial" effect, up from an earlier 72 per cent.
NFU president Meurig Raymond said: "I am seeing more and more how farmers are speaking directly to the public - whether that's capitalising on social media to share compelling reasons to back British farming and buy British food or the recent successes seen on Open Farm Sunday when farmers threw open their gates to speak directly to the public."
He added that with the union's own Back British Farming campaign "we have capitalised on the public's desire to know more about where their food comes from". Meanwhile, its Twitter channel now has around 31,000 subscribers, up from 4,600 in 2012, while its YouTube channel "reaches hundreds of thousands of interested people".
"Now, at a time when farm gate prices are low, retailers and Government must also continue showing their support and visibly back British farming," said Raymond.