Foreign investment not only brings in money but links New Zealand into foreign markets, says former Prime Minister John Key.
A media release from National Fieldays says 21,353 people went through the gates on the opening day, a slight decrease from last year's 26,648.
The severe weather, which now appears to have blown through, most likely delaying a number of visitor arrivals to later in the week, it says.
However, despite the wet weather, the official opening ceremony started with a bang as announcer and Waikato native Te Radar rolled in on the back of a ruggedly rural dirt bike.
Te Radar opened the event, saying "the event has been around for longer than I have," and that Fieldays "still creates a sense of childlike glee."
Fieldays chief executive Jon Calder says some of the Fieldays operations team were Tuesday overnight "literally battening down the hatches".
But despite the weather we opened to clear skies and sunshine, he says.
Thankfully there was no significant damage done overnight, although some smaller marquees received slight wind damage.
Prime Minster John Key officially opened the Fieldays 2014 event, welcomed visitors and exhibitors and acknowledged international business visitors, including representatives from China and Argentina.
"It's been an honour to have the Prime Minister open our 46th annual event ," said Calder.
"The strength of the agribusiness sector, and it's contribution to the economy, is a key factor at this year's event and we look forward to an exciting few days at Fieldays as we welcome key business leaders and visitors to celebrate and do business here. It's been a great first day and I couldn't be happier."
Other attendees at the official opening included the Minister for Primary Industries Nathan Guy AND Science and Innovation Minister Steven Joyce.
The Argentinian site was officially opened yesterday boasting the largest delegation group at Fieldays 2014, with more than 60 business and government visitors.
As always, the Fieldays Innovation Centre and the Fieldays Kiwi's Best Kitchen were extremely popular with today's agricultural enthusiasts.