HARBIN, Feb. 16 -- Northeast China's Heilongjiang Province, the country's largest producer of commodity grain, increased annual output by 4 percent to 62.4 billion kg in 2014, local authorities said Monday.

The additional 2.38 billion kg produced accounts for nearly half of the country's newly added output in 2014, according to the provincial agriculture department.

China produced 607 billion kg of grain in 2014, 5.16 billion kg more than in 2013, according to the National Bureau of Statistics.

As one of China's biggest grain producers, Heilongjiang has seen consecutive growth of grain output over the past 11 years. It currently holds a grain cultivation area of 214 million mu (14 million hectares).

Heilongjiang beat central China's Henan Province to become China's top grain producer in 2011, accounting for a tenth of the country's total.