Nutritional changes of lettuce leaf exposed to cadmium in contaminated tropical soils - Nogueira, Thiago Assis Rodrigues; He, Zhenli; Trombeta, André Luis Borges; Muraoka, Takashi; Lavres Junior, José; Abreu Junior, Cassio Hamilton (International Plant Nutrition Colloquium and Boron Satellite Meeting, 2013)