UFU anger as talks over scheme end in deadlock
The Ulster Farmers Union has accused Department of Agriculture (DAERA) officials of "riding roughshod" over farmers in the absence of a minister.
The department has been run by civil servants since the collapse of the power-sharing institutions earlier this year.
Negotiations for a solution to problems with the farm business improvement scheme ended in deadlock.
UFU president Barclay Bell said farmers recognise that ammonia levels need to be addressed, but are frustrated as they believe DAERA is going about it in the wrong way.
A DAERA spokesperson said: "The department is working with an industry group, at the request of the previous DAERA minister, to develop an ammonia report.
"This report will inform the department's thinking on how best to tackle the ammonia issue."