Revista Brasileira De Herbicidas 2015; 14(2): 155-163
Carryover of herbicides applied in the pre-emergence of cotton on the corn grown in succession
Herbicides that present long persistence in the soil can cause problems in crops sown in succession due to the soil’s residual effect. That way, the objective of this paper was to evaluate the effects of herbicides applied in the pre-emergence of the cotton to the productivity of corn grown in succession. The experiment was installed in the municipality of Santa Helena de Goiás – GO. The application of herbicides treatments were carried out in a pre-emergence state of the cotton by using isolated clomazone or in mixtures of fomesafen, fomesafen + trifluralin, fomesafen + s-metolachlor, fomesafen + diuron and fomesafen + prometryn. In the condition in which the experiment was carried out, the results observed allowed us to see that the application of herbicides in the pre-emergence state of cotton crops did not have any significant effects in the insertion height of the cob, insertion height of the tassel, stem diameter and corn productivity, resulting in the absence of carryover on the hybrid corn RR® AG 7098 PRO 2, considering safe the sowing of corn 264 days after the application of herbicides.
Keywords: atividade residual; fitointoxicação; persistência
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