Magnetic susceptibility in predicting soil and plant attributes for specific management areas identification in citrus

• Grant number: 07/04688-6
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Effective date (Start): September 01, 2007
• Effective date (End): August 31, 2010
• Field of knowledge: Agronomical Sciences - Agronomy - Soil Science
• Principal Investigator: José Marques Júnior
• Grantee: Lucas Aguilar Cortez
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil

Abstract

The physical attributes of the soil are related to the mineralogy of the clay fraction of oxisol. This work has as objective evaluate the influence of the kaolinite and gibbsite in the stability of aggregates of oxisol with small variation in the forms of the relief, being used geoestatistc techniques. The soil will be showed in the points of crossing of a mesh, with 10 M regular intervals , in the depth of 0,00-0,20 m for the physical and mineralogycal attributes, totalizing 121 points. The samples will be submitted to the laboratory analyzes for iron oxides extration, and the samples will be submitted to the DRX. Later the data will be submitted to the descriptive statistics. The analysis of the space dependence will be made by means of the geoestatic. Values interpolated through Krigagem will be used, together with the measured values, for construction of maps of the studied attributes.