Atributos de qualidade de solos sob dois diferentes tipos de manejo no município de Ibiúna/SP, Brazil


Autoria(s): Manfre, Luiz Augusto; Silva, Alexandre Marco da; Urban, Rodrigo Custodio
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/10/2011

Resumo

Agricultural activity has direct consequences on the soil and water quality. Thus, assessing environmental impacts of this vital economic activity, through soil attribute analysis, is essential to the proposal of alternatives. The aim of this study was to analyze soil quality under different land management practices, conventional and organic. The study was carried out in a watershed of the Ibiuna municipality, SP, Brazil, an important supplier of agricultural products for the São Paulo metropolitan area. A hundred samples were collected, 20 in each type of land use: reforested areas, native vegetation, pasture, conventional cultivation and organic cultivation. The soil resistance to penetration, its pH (in water and KO), electrical conductivity, bulk density, particle density, porosity, soil color, soil texture and the percentages of carbon and nitrogen were analyzed. The data were statistically analyzed, searching for significant differences. The results of soil analysis showed great similarity between the organic and conventional culture, with no statistical differences. However, organic cultivation showed greater similarity to the soil of native vegetation in the percentage of carbon and nitrogen in soils compared to conventional culture. Thus, the discussion begins on a topic very little explored so far, and the results obtained should be further studied.

Formato

757-763

Identificador

http://www.interciencia.org/v36_10/indexp.html

Interciencia. Caracas: Interciencia, v. 36, n. 10, p. 757-763, 2011.

0378-1844

http://hdl.handle.net/11449/153

WOS:000297090600009

Idioma(s)

por

Publicador

Interciencia

Relação

Interciencia

Direitos

openAccess

Tipo

info:eu-repo/semantics/article