Labor will attempt to stoke simmering tensions within the Nationals by working with the Senate cross bench next week to bring on debate of One Nation's dairy support legislation.

The junior Coalition partner has been locked in bitter feuding for the past month over implementing a code of conduct for the dairy industry, with a handful of backbench MPs openly critical of deputy leader Bridget McKenzie over the issue.

There is growing angst within the Nationals over attempts to get a better deal for dairy farmers. Credit:Alex Ellinghausen

Senator Pauline Hanson will bring forward a bill to support struggling dairy farmers, particularly in Queensland and northern NSW, and has invited Nationals senators to cross the floor on the issue.

The One Nation legislation will task the Australian Competition and Consumer Commission with establishing a minimum farm price for milk, legislating a mandatory code of conduct for the relationship between farmers and milk processors and making a referral for investigation of the industry by the Productivity Commission.