HYDRUS 2D simulation of atrazine movement in tropical and temperate soils under maize cultivation

• Grant number: 17/07443-6
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: September 01, 2017
• End date: March 31, 2019
• Field of knowledge: Agronomical Sciences - Agricultural Engineering - Soil and Water Engineering
• Principal Investigator: Jarbas Honorio de Miranda
• Grantee: Luciano Alves de Oliveira
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated scholarship(s): 18/01915-6 - Hydrus 2D simulation of atrazine movement in tropical and temperate soils under corn cultivation, BE.EP.DR

Abstract

Nowadays, to increase productivity of crops it is necessary to increase the use of agricultural inputs, for example herbicides, which when applied in an unreasonable way will lead to some kind of contamination, through leaching and reach groundwater. It can be said that atrazine is an example of the most used herbicide in Brazil and in the world and is often detected as the main organic pollutant, revealing itself as a potential contaminant of groundwater. In this respect, it is necessary to know with more details the elements' dynamic through the soil, aiming a better control of risks of a possible environmental "pollution". Therefore, the main objective of this research is to simulate the atrazine dynamics using HYDRUS 2D model in tropical and temperate soils cultivated with maize. The research will be divided into two stages (Brazil and USA) that will be carried out the following: 1) obtaining the transport parameters of atrazine in soil by numerical adjustment with STANMOD model; 2) collection of physical-hidrolic soil, water and atrazine properties; 3) numerical simulation of solution distribution (water and atrazine) using HYDRUS 2D model during the development of maize. With the results, it is expected to collaborate with the atrazine application management improvement and to assist the development of agricultural sustainability. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DE OLIVEIRA, LUCIANO ALVES; HONORIO, DE MIRANDA JARBAS; GRECCO, KATARINA L.; TORNISIELO, VALDEMAR LUIZ; WOODBURY, BRYAN L.. Atrazine movement in corn cultivated soil using HYDRUS-2D: A comparison between real and simulated data. Journal of Environmental Management, v. 248, OCT 15 2019. (17/07443-6, 18/01915-6, 18/10164-4)

DE OLIVEIRA, LUCIANO ALVES; WOODBURY, BRYAN L.; DE MIRANDA, JARBAS HONORIO; STROMER, BOBBI S.. Using electromagnetic induction technology to identify atrazine leaching potential at field scale. Geoderma, v. 375, OCT 1 2020. (17/07443-6, 18/01915-6, 18/10164-4)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

OLIVEIRA, Luciano Alves de. HYDRUS 2D simulation of atrazine movement in tropical and temperate soil region under corn cultivation. 2019. Doctoral Thesis - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC) Piracicaba.