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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">MANEJO DE SUELOS</topic></authority><related type="narrower"><topic>AGRICULTURA</topic></related><related type="narrower"><topic>COBERTURA VEGETAL</topic></related><related type="narrower"><topic>CONSERVACION DE SUELOS</topic></related><related type="narrower"><topic>LABRANZA</topic></related><related type="narrower"><topic>PRODUCTIVIDAD DEL SUELO</topic></related><related type="narrower"><topic>SISTEMAS DE CULTIVO</topic></related><related type="other"><topic>AGRONOMIA</topic></related><related type="broader"><topic>EDAFOLOGIA</topic></related><variant type="other"><topic>Suelos--Manejo</topic></variant></mads>