Nats will do better at re-run poll: Joyce

The Nationals will improve their performance at the re-run West Australian Senate election, Agriculture Minister Barnaby Joyce says.

The party - which began in the west - missed out on a seat at the September poll because of preference deals wrangled by minor parties including the Australian Sports Party.

Shane Van Styn and Colin de Grussa are running again at the April 5 election, but former AFL star David Wirrapanda has decided he won't.

"We had David Wirrapanda and he did a good job - we got a better vote than one of the senators that got in, it's just that our preference flow wasn't right but this time, the preference flow is better for us," Mr Joyce told Fairfax radio on Friday.

"We've got a better position (on the ballot paper) in box B.

"There was an overwhelming desire for change at the last election and I suppose the National party, because they stand on their own, got run over a bit in it.

"But this election is different."

Mr Joyce said the party's policy platform was centred on abolishing the carbon tax, progressing trade agreements and more infrastructure in WA.