Phytoextraction of Cadmium Using Solanum nigrum and Bidens pilosa: Comparative Evaluation and Effect of Planting Distance in Theobroma cacao L. Producing Areas in Northeastern Peru
Cacao (Theobroma cacao L.) is a crop of great economic importance in Peru; however, the presence of cadmium (Cd) in cacao-growing soils limits its production and international trade. The objective of this study was to evaluate the effect of Solanum nigrum (black nightshade) and Bidens pilosa (cobbler’s pegs) on Cd remo...