A Nationals decision to ditch its net-zero emissions commitment hasn't convinced Barnaby Joyce to stick with the party as the renegade MP declares he has more questions to ask.

Members of the junior coalition partner's federal council voted over the weekend to cut the 2050 target from the party's official platform, pleasing anti-renewables campaigners but setting up a potential clash with Liberal colleagues.

Mr Joyce, who has flagged his intention to quit the Nationals amid frustration over the net-zero objective, said he had more to go through with fellow MPs before making a decision on his future.

The former deputy prime minister wouldn't confirm if the policy shift would affect his decision to stay with the regional party or potentially defect to One Nation.

"This is my decision to

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