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	mads.xsd"><authority><topic authority="http://sistemas.agricultura.gov.br/tematres/vocab/">Elemento Químico</topic></authority><related type="narrower"><topic>Álcali</topic></related><related type="narrower"><topic>Arsênico</topic></related><related type="narrower"><topic>Boro</topic></related><related type="narrower"><topic>Carbono</topic></related><related type="narrower"><topic>Césio</topic></related><related type="narrower"><topic>Enxofre</topic></related><related type="narrower"><topic>Flúor</topic></related><related type="narrower"><topic>Fósforo</topic></related><related type="narrower"><topic>Halogênio</topic></related><related type="narrower"><topic>Manganês</topic></related><related type="narrower"><topic>Metal</topic></related><related type="narrower"><topic>Nitrogênio</topic></related><related type="narrower"><topic>Oxigênio</topic></related><related type="narrower"><topic>Selênio</topic></related><related type="narrower"><topic>Silício</topic></related><related type="narrower"><topic>Sódio</topic></related><related type="narrower"><topic>Urânio</topic></related><related type="narrower"><topic>Vanádio</topic></related><related type="other"><topic>Composição Química</topic></related></mads>