The future of Heilongjiang's agriculture should rely on "green" food production and processing, said industry insiders and local officials during a recent agricultural expo in Harbin.

The 2013 Harbin Agricultural and Food Expo opened on Sept 5 in the provincial capital Harbin with the participation of about 1,500 enterprises.

Heilongjiang is one of the leading agricultural provinces in China, and insiders said the province is now in a transition from a big grain grower to a high-quality green food hub.