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UFRGS professor Tales Tiecher explains the effect and difference between liming and gypsum. You can find more information on the subject at: http://cursos.maissoja.com.br/ Visit our portal: http://maissoja.com.br/ Learn about our online courses: http://cursos.maissoja.com.br/ __ Mais Soja social networks: Instagram: / maissoja Facebook: / maissoja Twitter: / mais_soja WhatsApp: (55) 9974-6783