* At least 5 nations want urgent action to boost milk prices
* Farm chief says nearly all price support tools activated
(Adds quotes, background)
By Jeremy Smith
BRUSSELS, March 23 (Reuters) - Europe's farm chief refused demands on Monday by some European Union ministers, who want to shore up weak milk prices to help struggling farmers, that the bloc should reconsider dairy market reforms it agreed last year.
At least five countries have called for urgent action and possibly to delay annual rises in EU milk production quotas, agreed last November under the "health check" -- or mini-reform -- of EU farm policy, to give prices a chance to recover.
Speaking at a monthly meeting of EU farm ministers, Agriculture Commissioner Mariann Fischer Boel said she was not about to reopen the 'health check', adding that suspending the one-percent quota increases would not solve the current problem.
"I want to be crystal-clear," Fischer Boel told a news conference during the meeting. "I am not going to step back ... on the agreement we made in the health check."
"That idea is dead," she said. "So let's stop this purely political discussion and concentrate on what we can do with the economic problems," Fischer Boel said, adding that "blurred messages" were causing uncertainty among farmers.
Austria, Germany, Hungary, Slovakia and Slovenia circulated a joint note to the European Commission and other national EU delegations suggesting several support measures to help milk prices, saying "unconventional approaches" were now needed.
Dairy farmers have protested in several EU countries in recent months about low milk prices, piling pressure on national governments to help in some way. Germany has been particularly hit and was the driving force behind the five-country paper.
MUCH DONE ALREADY
The Commission has already taken a number of steps to prop up dairy markets, including the reinstatement of export subsidies and private storage. It has raised ceilings on volumes of butter and skimmed milk powder that can be bought into public intervention stores, to remove supply from the market.
Now, nearly all EU support tools had been activated to prop up prices, Fischer Boel said. Only two options remained: subsidies to use skimmed milk powder in feed and for processing into casein, an important protein found in fresh milk. But neither would be efficient in current circumstances, she said.
"It's difficult to see what more the Commission could do. There are a couple of other disposal schemes on the books but it won't have a major impact on the market," one EU diplomat said.
Fischer Boel said EU milk production was expected to come in at between 4 and 5 percent below the maximum quota quantities this marketing year, with the same undershoot in 2009/10.
"This clearly shows that farmers understand that it is market prices and their cost structure rather than the quota levels that should determine their production decisions," she told EU farm ministers at their meeting.
"Quotas are not an obligation to produce but a possibility." (Editing by James Jukwey)