Effects of planting density and chemical control agentson agronomic traits and yield of maize

As the future development direction of pork industry, pork sustainable supply chain is conductive tothe innovations of development idea, operation model, bussiness management and technical roadmap, can realizesustainable development of pork industry. This paper briefly introduced the principle of pork sustainable supplychain, clarified three key links including sustainable breeding, sustainable slaughtering and sustainable marketing,put forward approaches from four aspects: strengthening the concept of sustainable supply chain, improving theconstruction of system and infrastructure, strengthening the solid corporation of every link, speeding theinformatization and technicalization development