A B S T R A C TThis study aimed to evaluate the effects of the application of two types of oil drilling wastes on the development and absorption of barium (Ba) and sodium (Na) by sunflower plants. The waste materials were generated during the drilling of the 7-MGP-98D-BA oil well, located in the state of Bahia, Brazil. The treatments consisted of: Control -without Ba application, comprising only its natural levels in the soil; Corrected control -with fertilization and without wastes; and the Ba doses of 300, …
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