MOSCOW, Nov 3 (Reuters) - Russia will limit exports of nitrogen fertilisers and complex nitrogen-containing fertilisers for six months to try to curb any further increase in food prices amid higher gas prices, Prime Minister Mikhail Mishustin said on Wednesday.

"The increase in natural gas prices has had a negative impact on the global markets," Mishustin told a government meeting.

"This could lead to higher prices and shortages of nitrogen fertilisers, in the production of which the price of gas occupies a significant part, and, as a consequence, cause an increase in the cost of food products. To prevent this, the government is imposing temporary restrictions on the exports," he added.

The quota for exports of nitrogen fertilisers will be set at 5.9 million tonnes, and for complex nitrogen-containing fertilisers at 5.35 million tonnes, he said. (Reporting Andrey Ostroukh and Anton Zverev Writing by Polina Devitt Editing by Mark Potter)