The government said the customs barrier on exports was to ensure its own food security as the currency crisis bites. The announcement drove global grain prices up, but analysts said ample world stocks of wheat and corn should keep it from spiking.
The tumble in the value of the rouble by abound 50 per cent this year has made exporting grain far more profitable for Russian farmers and, despite one of the best harvests on record, domestic wheat prices have started to soar.
"We had a good harvest but at the same time, due to the volatility of the rouble, prices are very advantageous and exports have risen considerably," Prime Minister Dmitry Medvedev said at a government meeting. "We need to have minimum reserves that assure Russia's food security. In this context I think it is time to reflect on administrative restrictions on exports," he added.
The measures could be signed by Medvedev within 24 hours, deputy prime minister Arkady Dvorkovich was quoted as saying by Russian news agencies.
Dvorkovich said Russia has exported 21 million tonnes of grain since July out of a potential annual total of 28 million tonnes. Russia harvested 104 million tonnes this year.
Wheat prices climbed in European trading following the announcement. Around 1130 GMT on Monday, wheat for delivery in January gained €2.25 to €198.25 per tonne in heavy European trading, while the March price rose €2.50 to €199.75.
FEARS OVER BREAD PRICE
Wheat prices already jumped more than four percent last week on the Chicago exchange as traders feared that Russia, usually the world's number three grain exporter, might impose an export ban as it did in 2010 when it suffered a poor harvest.
"The market had already anticipated ... informal restrictions. Now they are formal," said Sebastien Poncelet, an analyst with the French consultancy Agritel, describing heightened "tension and volatility" in grain trading.
"Now there are two possibilities: either it will be a total restriction or a partial restriction that would exclude ... Russia's two main customers, Egypt and Turkey, as well as India and Armenia," Poncelet told AFP. The restrictions could lead to a shortfall of up to seven million tonnes of wheat on the world market if it was a total ban, he said. Still, the moves will not necessarily cause a sharp spike in prices because buyers could turn to corn, which is in great supply, he said.
Russian authorities denied last week they were considering an export ban, but there were indications that the government may have been trying to slow exports to keep the politically sensitive price of bread from soaring.
According to Russian media, the veterinary and agricultural service has been issuing only a small percentage of the export certificates it normally does, without providing any official explanation.
And the national railway company informed exporters that it is cutting back on grain shipments because of circumstances beyond its control, again without providing an explanation. Then a major association of grain exporting companies said it was halting purchases until prices and supply stabilised.
The business daily Kommersant reported recently that the politically sensitive price of bread could jump by 10 per cent in the coming weeks as Russians celebrate the holidays, prompting authorities to take action to ensure no abusive price hikes.