2026-06-09http://hdl.handle.net/123456789/10092Young cacao plants both from seeds and rooted cuttings, were cultivated in quartz sand treated with nutrient solutions of different compositions, in order to reproduce the typical symptoms of various mineral deficiencies. Deficiency symptoms of the following elements are described and illustrated with pictures: nitrogen, phosphorus, potassium, calcium, magnesium, sulphur, iron, manganese, boron, and copper.9 páginasapplication/pdfTheobroma cacao||Theobroma cacao||Theobroma cacao||Theobroma cacaoEnfermedad de carencia||deficiency diseases||doença de carências||maladie de carenceDeficiencia de minerales||mineral deficiencies||deficiência mineral||carence minéraleSíntoma||symptoms||sintoma||symptomeSede CentralArtículo