Yesterday, grade 2 pupils got their hands dirty as part of the Grow.Eat.Learn project from the Tasmanian Institute of Agriculture.

The pupils have made four garden beds, one a control garden and three fertilised differently: one with a worm farm, one with commercial-grade fertiliser and one with Glebe Gold fertiliser.

Pupil Sarah North said they were going to see which plants grew best in which soil treatment.

"We're going to try to teach the world to recycle and not throw it in the tip and use all their food scraps," pupil Chloe Ransom said.

Institute researcher Anna Carew said the project had received a great response from its installation at Cressy District School, Lilydale District School, East Launceston Primary School and the university's School of Architecture and Design.

"It's really tapped into something that the community's interested in," Dr Carew said.