A Department of Housing consultation paper on the Nitrates Action Programme has proposed restrictions on nitrogen usage on lowly stocked holdings.
There are fears that fertiliser shipments from the Middle East could be impacted, should clashes involving Israel and Iran escalate.
The farm organisations have called for concerns regarding protected urea to be addressed, before sales of straight urea are prohibited.
There were record levels of both farm unviability and vulnerability in 2023.
The farm body claimed that the Department of Agriculture had included references to a ban on unprotected urea from September next year in draft minutes.
Only protected urea will be available to Irish farmers from autumn and winter next year.
Only protected urea will be available to Irish farmers from next autumn and winter, a stakeholder group has recommended.
The EPA has cited reduced lime application to soils and lower milk output as reasons for the third consecutive quarterly drop of emissions in the farm sector.
There remains little clarity on what nitrates changes farmers must abide by next year, despite the proposals having been put on the table months ago.