Traders at Glencore, the world's largest commodities trader, have called on Moscow to impose an export ban on grain to allow companies to renegotiate their contracts, in the starkest sign yet of the severity of the crop failure in Russia.

By Javier Blas in London and Isabel Gorst in Moscow

Published: August 3 2010 19:00 | Last updated: August 3 2010 19:00

Source: Financial Times

http://www.ft.com/cms/s/0/dfa6ba3a-9f27-11df-8732-00144feabdc0.html