Canavalia ensiformis enhances the phytoremediation of remineralized and sulfentrazone-contaminated tropical soils.

The objective of the study was to assess the phytoremediation potential in two remineralized soils contaminated with sulfentrazone. Two soil types were evaluated: Oxisol (clayey) and Inceptisol (sandy loam), in pots, with and without the incorporation of the rock powder, at rates of 0, 4, and 8 t ha. Following this, sulfentrazone was applied at rates of 200, 400, 600, and 800 g a.

Adequacy of glyphosate doses in the (Lam.) Hallier f. control as a function of light intensity in the growth environments.

Shading interferes with the weed's biology, which can change their sensitivity to post-emergence herbicides. The objective was to evaluate the control of with glyphosate in full sunlight and shade conditions in two plant growth stages (30 and 73 days after sowing (DAS)). At 30 and 73 DAS, treatments were established in a 2 × 5 and 2 × 6 factorial scheme, respectively.