FINALISING the Murray-Darling Basin plan is "far from over", according to the Victorian Farmers Federation.

And Victorian Water Minister Peter Walsh said while the plan was "on the right path to get a good outcome", questions remain over who would pay for the work needed to return water to the environment.

Last week federal Environment Minister Tony Burke announced his historic plan to return 2750 gigalitres of water to the river system by 2019.

An additional 450 gigalitres is also pegged to be returned over the next decade.

This plan received a decent response from most farmers, who agree that balance has been achieved.

Environment groups have been less accepting, many arguing more water was needed to ensure the water system's health. The plan faces further hurdles with Greens and Federal Member for Riverina, Nationals' Michael McCormack, both separately expected to move disallowance motions in Federal Parliament this week.

Nationals senator Barnaby Joyce said he would not back either move.

"I am alive to the concerns Michael raises ... but it would be ludicrous for me to vote against a plan I helped negotiate and doing so would mean Labor would go back to negotiating with the Greens," he said. Senator Joyce said he wanted to see the water-recovery strategy before fully supporting the plan.

Victorian Farmers Federation water chairman Richard Anderson said parts of the plan were positive, particularly that the "Federal Government would not go back into the water market unless they are making strategic purchases".

"Overall, VFF thinks there are some positive signs there on what they have come up with, but importantly, now it needs to be implemented," he said.

Mr Walsh said he was combing through the finer details of the plan and work remained on finalising an IGA and a water-recovery strategy to set out how water-recovery work would be done and what Commonwealth funds would be provided.

But some irrigators remain unhappy.

Sunraysia Irrigators Council chairman Danny Lee said the $100 million of federal funding for MDB economic diversification projects was "akin to the Government stealing your house and giving you a tent".

"The MDB Plan is the most foolish move this nation has ever made," Mr Lee said.

Centralising MDB decisions made the food bowl "vulnerable to the whims of the government of the day", he said.