Bohan Wang. Imbalance of Interests Between Grain Producing and Consuming Regions and the New Mission of Urban Agriculture: A Perspective From Marxist Ground Rent Theory. JFEMR [Internet]. 2025 Nov. 28 [cited 2026 Jan. 31];1(3):1-15. Available from: http://ojs.iajournals.cn/index.php/JFEMR/article/view/239