World Trade Organisation talks, which collapsed last month over a proposal to help poor farmers cope with a surge in imports, need to resume soon to build on existing compromises, the WTO farm mediator said.

The issue reflected a deep political divide, New Zealand's WTO ambassador Crawford Falconer, who chairs negotiations on agriculture, said in a report to the WTO's 153 members on last month's meeting of ministers.

The discussion over the proposed "special safeguard mechanism," which would enable developing countries to raise tariffs to counter a flood in imports, could not be dismissed as merely a technical issue, Mr Falconer said.

"If we want to fix this in something less than a three-year time horizon (which I hope we want to do), it has to be done in the very near term," Mr Falconer said in the report.

"Each day that passes takes us further and further away from the preparedness to compromise that was certainly evident in that last week of July for much of the time."

The appeal received a restrained response in Washington, where US Trade Representative Susan Schwab is due to meet WTO Director General Pascal Lamy next week to discuss future moves for the troubled trade talks.

"Ambassador Schwab will ... continue consulting with other trade ministers who demonstrated their commitment in Geneva to a successful outcome to the Doha round," USTR spokesman Gretchen Hamel said in an e-mailed statement.

"The US remains committed to a successful Doha round. However, we continue to have deep concerns with proposals under consideration that would not only limit market opening by the world's fastest growing economies, but would actually raise new barriers to trade - particularly against other developing countries."

Ministers from about 30 WTO members met in Geneva at the end of July seeking a breakthrough in talks in agriculture and industrial goods, the core areas of the WTO's Doha round to open up world trade, launched in late 2001.