The northeastern province of Heilongjiang occupies 453,900 square kilometers, with more than 10 million hectares (M ha) of cultivated land. Main soil types are Black, Meadow, and Chernozem, which respectively cover 3.6, 3.0 and 1,6 M ha. Heilongjiangis the leading grain producing province in China and the main crops are corn, soybean, rice, and wheat. Corn covers about 2.5 M ha annually or nearly 25% of the total cultivated land in the province. Annual production is about 11.9 million tonnes (M t),which represents about half of all cereals produced in the province.
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