作者: Daniel Adriano Sontag , Rodrigo Fernando Dourado , Guilherme Cardoso Pavan , Neumárcio Vilanova Costa , João Ricardo Pompermaier Ramella
DOI:
关键词: Control level 、 Starch 、 Mathematics 、 Metolachlor 、 Horticulture 、 Weed control 、 Sowing 、 Cutting 、 Agronomy
摘要: This study has aimed to evaluate selectivity and efficiency in weed control of flumioxazin S-metolachlor 'Baianinha' cassava crops. The experimental design was randomized blocks with four replications. Treatments consisted doses 50, 75, 100 125 g ha -1 a.i. 960, 1920, 2880 3840 a.i., besides weeded unweeded controls. application carried on 10/11/2013, 13 days after planting (DAP) cuttings presented underground sprouts measuring 3.0 4.5 cm. Flumioxazin at the highest dose provided 61.5% reduction weeds biomass while reduced 63.7% biomass. Both herbicides have not promoted phytointoxication altered roots yield starch content plants. In conclusion, were selective for efficient control. However, level increased increments assessed.