Chemical properties of yellow latosol of the cerrado in the Piauí state under different management systems

The cerrado region of the Piaui State is considered the last brazilian agricultural frontier. Its sustainability depends, among others factors, of the adopted management systems. The objective of this work was to evaluate the changes in the chemical attributes of a dystrophic Yellow Latosol, under d...

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Bibliographic Details
Published in:Ciência agronômica 2009-07, Vol.40 (3), p.356
Main Authors: Matias, M. da C.B, Salviano, A.A.C, Leite, L.F.C, Galvão, S.R. da S
Format: Article
Language:Portuguese
Subjects:
CERO-LABRANZA
FERTILIDAD DEL SUELO
FERTILIDADE DO SOLO
FERTILITE DU SOL
http://www.fao.org/aos/agrovoc#c_5849
http://www.fao.org/aos/agrovoc#c_7170
http://www.fao.org/aos/agrovoc#c_7182
http://www.fao.org/aos/agrovoc#c_8511
NON-TRAVAIL DU SOL
PIAUI
PIAUÍ
PLANTIO DIRETO
PROPIEDADES FISICO - QUIMICAS SUELO
PROPRIEDADE FÍSICO-QUÍMICA
PROPRIETE PHYSICOCHIMIQUE DU SOL
SOIL CHEMICOPHYSICAL PROPERTIES
SOIL FERTILITY
ZERO TILLAGE
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Summary:The cerrado region of the Piaui State is considered the last brazilian agricultural frontier. Its sustainability depends, among others factors, of the adopted management systems. The objective of this work was to evaluate the changes in the chemical attributes of a dystrophic Yellow Latosol, under different management systems: no-tillage (NT), conventional tillage (CT) and just-deforested area (JDA), compared to native cerrado vegetation (NC). The soil samples were collected in the Progresso Farm, in Uruçuí, PI, in the 0-5; 5-10; 10-20 and 20-40cm depths. pH in water (1:2.5), Al3+, H + Al, Ca2+, Mg2+, K+, available P and organic matter (OM) were evaluated. The soil cation exchange capacity at pH 7.0 (T), sum of basis (SB), basis saturation (V) and the saturation for aluminum (m) were determined. In all the soil depths, the Al3 + was lower in the NT and CT systems. NT and CT also presented the highest (p
ISSN:0045-6888
1806-6690