According to the theoretical and practical experiences of agricultural supply chain both at home and abroad and the principles of profitability, efficiency, sustainable development, closed-loop supply chain mode of ecological agriculture embedded with knowledge scheme is constructed based on the urban and rural two-way logistics system. This mode is embedded with technical knowledge program of eco-crop cultivation and management during the logistics distribution of agriculture means of production. Profit is obtained through the connection between eco-agricultural production base and market. Support system of this mode is introduced, including technology, policy, management, human resources and financial support. Stage characteristics and evolutionary... |