Long-awaited detail on the $130 million climate change adaptation programs promised by Labor before the election will be unveiled next week.

It's hoped the budget will also shed more light on the Federal Government's big $12.9 billion water plan, with specific details still outstanding on whether there will be a significant change to previously committed projects to improve water-efficiency at the farm level.

The Government is expected to commit significant funding next week to a new Australian Weeds Research Centre, which was also an election commitment.

The centre will replace the existing co-operative research centre for weeds research which was canned by the previous government because it could not prove its commercial merit and which would have stopped operating in June.

National Farmers Federation chief executive officer, Ben Fargher, said the four most important areas to NFF in the budget are:

• Climate change programs.

• Rural education and training commitments,

• Infrastructure spending on rail and roads.

• Water upgrade funding.

"We know FarmBis has been cut and the minister has made that clear," he said.

"But we'd like to see if training aspects from that program can be incorporated into the $130m farming for the future program.

"The government also flagged it was going to cut the agricultural and horticultural apprenticeship scheme.

"We've asked for that to be reinstated because of the importance of skills and the government's skills agenda.

"They've given an indication that they will be retaining that scheme, so we'll be looking for that, too."

The NFF is also looking to the budget for signs of an integrated plan for road, rail and ports, to help ease the burden on the growing freight task in Australia.

But detail from the water plan will be one of the most carefully scrutinised areas come Tuesday night.

"We want more detail on water," he said.