MAGNETIC SUSCEPTIBILITY AND REFLECTANCE SPECTROSCOPY DIFFUSE IN IDENTIFICATION OF AREAS OF MANAGEMENT FOR SPECIFIC SUGAR CANE

• Grant number: 11/06053-3
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: June 01, 2011
• End date: July 31, 2013
• Field of knowledge: Agronomical Sciences - Agronomy - Soil Science
• Principal Investigator: José Marques Júnior
• Grantee: Diego Silva Siqueira
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil

Abstract

The current agricultural practices require the knowledge of soil properties variability in the detailed and ultra-detailed scale. Among other factors, the accuracy of this mapping is related to the number of samples, so the costs Involved, a great deal of time and work and the need for human resources with high technical potential makes the characterization of the variability of soil properties and crop in more practically unenforceable detailed scales. In this context, the goal is to investigate the potential of magnetic susceptibility and the diffuse reflectance spatial variability of physical and chemical properties of soil in a detailed. These results may help in the areas of management mapping specific to cane sugar, which would be equivalent to future series of soils SiBCS. An area of approximately 911 hectares will be chosen. A regular grid with a density of 1 sample point per 2 acres will be made. They will be collected soil samples at depths of 0.0-0.2m and 0.2-0.4m to assess the physical, chemical, magnetic susceptibility and diffuse reflectance spectroscopy. Samples from sugar cane production will also be collected to characterize the attributes of stems, pol% and lint percentage. The data will be analyzed using descriptive statistics, geostatistics and multivariate data. The results will be interpreted considering concepts of soil-landscape.

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)

SIQUEIRA, D. S.; MARQUES, JR., J.; PEREIRA, G. T.; TEIXEIRA, D. B.; VASCONCELOS, V.; CARVALHO JUNIOR, O. A.; MARTINS, E. S.. Detailed mapping unit design based on soil-landscape relation and spatial variability of magnetic susceptibility and soil color. CATENA, v. 135, p. 149-162, DEC 2015. (11/06053-3)

SIQUEIRA, D. S.; MARQUES, JR., J.; PEREIRA, G. T.; BARBOSA, R. S.; TEIXEIRA, D. B.; PELUCO, R. G.. Sampling density and proportion for the characterization of the variability of Oxisol attributes on different materials. Geoderma, v. 232, p. 172-182, NOV 2014. (11/06053-3)

BARRIOS, MARIANA DOS REIS; MARQUES JUNIOR, JOSE; PANOSSO, ALAN RODRIGO; SIQUEIRA, DIEGO SILVA; LA SCALA JUNIOR, NEWTON. MAGNETIC SUSCEPTIBILITY TO IDENTIFY LANDSCAPE SEGMENTS ON A DETAILED SCALE IN THE REGION OF JABOTICABAL, SAO PAULO, BRAZIL. Revista Brasileira de Ciência do Solo, v. 36, n. 4, p. 1073-1082, JUL-AUG 2012. (10/20364-9, 11/06053-3)

Academic Publications

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

SIQUEIRA, Diego Silva. Mapeamento de atributos e planejamento amostral para latossolos utilizando suscetibilidade magnética, cor e relação solo-paisagem. 2013. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agrárias e Veterinárias. Jaboticabal Jaboticabal.