Banca de DEFESA: JESSICA RAFAELLY ALMEIDA LOPES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : JESSICA RAFAELLY ALMEIDA LOPES
DATE: 26/01/2022
TIME: 09:00
LOCAL: meet.google.com/syz-bmwc-goi
TITLE:

Transport and interaction of Imazapic in a Yellow Ultisol amended with biochar.

KEY WORDS:

Herbicide; Mobility; Environmental degradation.

PAGES: 60
BIG AREA: Engenharias
AREA: Engenharia Sanitária
SUMMARY:

The expansion of the sugarcane agro-industrial sector has intensified the use of pesticides in order to inhibit the action of pests, diseases and weeds in agricultural species. In view of this scenario, the use of the herbicide Imazapic in the cultivation of sugarcane for the control of purple nutsedge (Cyperus rotundus L.) has caused environmental impacts due to its solubility in water and high half-life, thus enhancing its leaching. As an effect of the interaction and mobility of the contaminants, there is the contamination of the soil, surface and underground water, in addition to the harm attributed to human health. The present work aimed to evaluate the transport and interaction of Imazapic in a dystrophic Yellow Argisol under the addition of biochar at the ideal depth of action of the molecule, which for this study will be the 0-20 cm layer. Tests of the interaction and mobility of the Imazapic molecule were carried out in soil columns with the addition of biochar from sugarcane bagasse, obtained at a temperature of 500ºC (BC500). Then, the use of mathematical models of Convection-Dispersion (CDE) and Convection-Dispersion at two sorption sites (CDE-2S) using the CXTFIT 2.0 program. Thus, it was possible to verify that the addition of biochar to the soil was able to reduce the transport of Imazapic to the deeper layers of the soil.

BANKING MEMBERS:
Presidente - 330.042.184-53 - ANDRÉ MACIEL NETTO - UFPE
Externo à Instituição - FERNANDO XAVIER DE ASSIS
Interno - 6384946 - MARCUS METRI CORREA