The prime minister, when repeatedly pressed by Sydney radio host Alan Jones, insisted he was doing all he could to help drought-ravaged rural and regional towns.

"We want the farmers and the communities to get through this drought, but we can't kid ourselves that there's a magic wand and a magic cash splash that is going to make this thing totally solved," he told 2GB on Tuesday.

Challenged about Australia sending $1 billion to Indonesia after the 2004 Indian Ocean tsunami, Mr Morrison replied: "We're doing more than that in the drought, we're doing seven times that."

The interview featured a recorded call from a man named Mark in Bourke, who became emotional about the devastating effect of the drought in northwest NSW.

Mr Morrison called Mark after hearing his message last week, and said he was satisfied with the coalition's efforts to support those in need.

But in a testy exchange with the radio host, the prime minister was pressed to bankroll farmers struggling to keep breeding stock alive.

Mr Morrison argued fodder and freight subsidies were the responsibility of state governments.

"The government - whether it's state, federal or anyone else - we can do a lot of things to help people try and get through this but the government cannot make it rain," he said.

"And the government can't make life as it was before the drought. And if anyone is suggesting that could be done, then they are lying to the people of rural and regional Australia."

The prime minister was also urged to release a report authored by drought co-ordinator Stephen Day.

"He provided that report to the government ... it's coming through cabinet at present," Mr Morrison said.

"His report has already informed so much of what we've done already. Cabinet is finalising its final response to that report."

Australian Associated Press