A farm organisation has said that the previous year's stocking figures "should be good enough for slurry import limits".
The Irish Cattle and Sheep Farmers' Association (ICSA) said that the Department of Agriculture, Food and the Marine accepts the use of prior year stocking figures for Active Farmer purposes under the Basic Income Sustainability Support (BISS) scheme.
ICSA rural development chair, Edmond Phelan said: "We are simply asking that the same common sense approach be applied to slurry imports under the nitrates rules.
"ICSA has repeatedly highlighted the difficulties faced by farmers who have to make decisions about slurry imports during the spreading season without knowing what their final stocking rate for the year will be.
"This is particularly challenging for beef farmers who trade animals throughout the year.
"The slurry spreading season closes at the end of September, yet farmers do not know their final stocking rate until mid to late January."
Phelan said that farmers are trying to do the right thing and make the best use of available nutrients.
However, they are "being asked to make decisions without having all the information available to them".
"That leaves them trying to work within a system that creates unnecessary uncertainty," Phelan said.
He said using the previous year's stocking rate for slurry imports would give farmers certainty from the outset.
"It would provide a straight-forward system that farmers and advisers can work with and remove a lot of the confusion that currently exists," Phelan continued.
"This is not about weakening the rules. It is about making them practical.
"Farmers need a system that reflects the reality of how farms operate and allows them to plan ahead knowing they are on track."
He added that it is a "simple, sensible proposal that would make life easier for farmers while still meeting the requirements of the nitrates rules".