1. World Population Prospects 2019: Data Booklet,2019
2. Improving nutrition through biofortification: A review of evidence from HarvestPlus, 2003 through 2016
3. Food and Agriculture Organization of the United Nations (FAO)—FAO Cereal Supply and Demand Brief
http://www.fao.org/worldfoodsituation/csdb/en/
4. Estudo do Solo;Cerqueira,2001
5. Can Foliar Pulverization with CaCl2 and Ca(NO3)2 Trigger Ca Enrichment in Solanum tuberosum L. Tubers?