中低品位磷矿在农业生产上的应用展望

我国磷矿资源储量居世界第一，但中低品位磷矿占其储量85%以上，合理利用中低品位磷矿对提高磷矿资源利用率具有重要意义。文章在介绍我国中低品位磷矿资源储量和筛选方法的基础上，从利用中低品位磷矿生产钙镁磷肥、过磷酸钙、磷矿粉和微量元素肥的工艺概况及特点等方面进行总结，并对中低品位磷矿的利用和宏观调控提出以中低品位磷矿生产钙镁磷基和过磷酸钙基的作物专用复合（混）肥料，国家和地方各级政府应该加大对中低品位磷矿加工企业的扶持力度，给予一定的政策优惠等建议，以期为中低品位磷矿的进一步深入研究提供参考。

Prospects of medium-low grade rock phosphate application in agricultural production

With world’s No.1 rock phosphate reserve and 85% being medium-low grade,it’s of vital significance to appropriately use medium-low grade rock phosphate for enhancing the overall utilization ratio in China.Besides the amount and screening of medium-low grade rock phosphate,processing features of applying it to produce various fertilizers including calcium magnesium phosphate,calcium superphosphate,ground phosphate rock,and microelement fertilizers were summarized in the paper.Anticipating providing more information for further research in this regard,a slew of suggestions were presented such as applying medium-low grade rock phosphate to produce calcium magnesium phosphate and calcium superphosphate compound fertilizers for crops,and more administrative and policy support for rock phosphate processing industries from the central and local authorities.