Harvesting systems (with and without residue burning) on the sorption and desorption of herbicides in sugar cane

• Grant number: 12/15843-0
• Support Opportunities: Regular Research Grants
• Start date: December 01, 2012
• End date: May 31, 2015
• Field of knowledge: Agronomical Sciences - Agronomy - Plant Health
• Principal Investigator: Jussara Borges Regitano
• Grantee: Jussara Borges Regitano
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated researchers: Valdemar Luiz Tornisielo

Abstract

The agricultural potential of Brazil is pointed out as a stimulating factor for the development of manufacturing agrochemicals, especially herbicides. Sugarcane is an important crop in the country occupying more than 8 millions of hectares. Recently, its harvest system is changing in order to not burn the crop straw, which generates 80-20 Mg ha-1 of surface residues. The maintenance of the straw results in increased levels of soil organic carbon. This may affect the dynamic of herbicides behavior in soils once the sorption potential of these molecules usually tends to increase with soil organic carbon. However, studies evaluating the influence of organic matter addition by burning or not sugarcane are scarce, making difficult to predict humans and environment risks and to recommend safer field rates. Therefore, the objective of this work is to evaluate the effect of different crop management systems of sugarcane harvesting (with and without burning) in the sorption and desorption processes of pre-emergent herbicides diuron, hexazinone and tebuthiuron. (AU)

Scientific publications

(4)

(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)

GIORI, FABRICIO GARCIA; TORNISIELO, VALDEMAR LUIZ; PELLEGRINO CERRI, CARLOS EDUARDO; REGITANO, JUSSARA BORGES. Sugarcane straw management and soil attributes on alachlor and diuron sorption in highly weathered tropical soils. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMIN, v. 49, n. 5, p. 352-360, MAY 4 2014. (12/15843-0)

GIORI, FABRICIO GARCIA; TORNISIELO, VALDEMAR LUIZ; REGITANO, JUSSARA BORGES. The Role of Sugarcane Residues in the Sorption and Leaching of Herbicides in Two Tropical Soils. WATER AIR AND SOIL POLLUTION, v. 225, n. 4, APR 2014. (12/15843-0)

PINHEIRO TONIETO, THIAGO ANTONIO; DE PIERRI, LETICIA; TORNISIELO, VALDEMAR LUIZ; REGITANO, JUSSARA BORGES. Fate of Tebuthiuron and Hexazinone in Green-Cane Harvesting System. Journal of Agricultural and Food Chemistry, v. 64, n. 20, p. 3960-3966, MAY 25 2016. (12/15843-0)

PEREIRA-JUNIOR, ERNANI V.; GIORI, FABRICIO G.; NASCIMENTO, ALTINA L.; TORNISIELO, VALDEMAR L.; REGITANO, JUSSARA B.. Effects of soil attributes and straw accumulation on the sorption of hexazinone and tebuthiuron in tropical soils cultivated with sugarcane. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMIN, v. 50, n. 4, p. 238-246, APR 3 2015. (12/15843-0)