NFF President Fiona Simson has called the target an “aspirational” one, cautioning that without ongoing innovation and policy support the goal won’t be met.
The federal government has resisted adopting the net zero emissions goal by 2050, despite pressure from the opposition, businesses and other industry groups.
Energy Minster Angus Taylor said the government won’t commit to a target if it can’t tell Australians the cost of meeting the goal.
“The government has been clear: we won’t set a target without a plan,” Mr Taylor told SBS News in a statement.
Agriculture Minister David Littleproud has also warned that “blindly setting a course” to achieve such a goal without a clear strategy would have serious implications on the "entire nation".
“I don’t support the NFF’s commitment to such a goal, particularly when they have not identified any quantifiable pathway to achieve it practically,” he said.
But Farmers for Climate Action – a member group of the NFF which represents 5,000 members - said the serious threat posed by global warming to agriculture across the country must be met with strong action.
Chair Lucinda Corrigan said there is “an economic imperative to reaching carbon neutral by 2050”.
The Business Council of Australia, the Australian Industry Group and big miners Rio Tinto and BHP have backed net zero emissions by 2050.
Australia's commitment to the Paris Agreement requires emissions reduction of at least 26 per cent by 2030, based on 2005 levels.
The government also says it continues to drive down emissions in the agricultural sector through its Emissions Reduction Fund.
Labor said it welcomed the NFF's commitment to the 2050 target.