Plenty has changed in the agricultural landscape in half a century, but there were plenty of stories to share at a reunion in Wagga on Friday.

The college was formed in 1948 at what is now Charles Sturt University (CSU) and, despite having had a few reunions in the past, the group wanted to return to where it all began for their big milestone.

Now aged between 68 and 70, most of the class of 1964 are semi-retired.

Co-organiser of the reunion Neil Sowerby, who lives in Bangalow, said all had been successful in the industry throughout NSW, Victoria, South Australia and the Northern Territory.

"The broad foundation of practical and theory (learning) provided balance for those farming or serving the agricultural industry," Mr Sowerby said.

Classmates travelled from far and wide for the catch-up - including Tony Gelling from West Wyalong and Bill Barnett, who lives in Noosa.

The trio reminisced about times past and, although some of agriculture facilities aren't still standing, planned to take a photo in front of their old accommodation.

"Agriculture has changed immensely since then (1964)," Mr Gelling said.

"(There's been) enormous progress; we learned the basics, I guess," Mr Barnett added.

The men said the university's expansive nature meant agriculture could be taught effectively and a large number of graduates were produced as a result.

The Wagga campus is CSU's biggest - spanning more than 640 hectares - and includes a farm, equine centre, vineyard and winery.

Head of CSU's School of Agriculture and Wine Science Professor John Mawson welcomed the former students before they toured the school, farm and winery cellar door.