【摘要】 从世界及我国人口现状与面临的挑战,论述了人口增长、富裕人群的增加使粮食安全更为严峻;介绍了世界及我国磷资源现状,按目前磷肥产业结构,我国可商品化的磷矿仅可开采30年,探讨了使我国磷矿开采寿命延长至数百年的途径。讨论了我国肥料产业结构存在的问题是用肥量过大、化学肥料品种过精,提倡发展含有中微量元素的中浓度复合肥料,有利于我国磷资源的可持续利用。更多还原

【Abstract】 Based on the status and challenge of population in China and the world,that the food security is more serious with the growth of population and the rich is discussed.The status of phosphorus resource in China and the world is discussed,according to the industrial structure of phosphate fertilizer,the exploitation life of commercial phosphate rock in China is only 30 years,the methods for extending the exploitation life of phosphate rock in China to hundred years are studied.The existing problems in industrial structure are discussed including large amount of fertilizer,refined varieties of fertilizer,the medium analysis compound fertilizer containing medium trace element is advocated,which is beneficial to sustainable utilization of phosphorus resource in China.更多还原