Mineral Nutrition of Cacao (Theobroma cacao L. ) IV-Effects of Nitrate and Urea Nitrogen on Deficiency Symptoms of Phosphorus, Potassium, Calcium and Magnesium in Sand Culture. Tropical Agriculture, [S. l.], v. 42, n. 1, 1965. Disponível em: https://journals.sta.uwi.edu/ojs/index.php/ta/article/view/3793. Acesso em: 26 apr. 2025.