SOIL DENSITY AND OPTIMUM MOISTURE FOR SOIL COMPACTION IN FIVE SOIL CLASSES IN WESTERN BAHIA STATE

Autores

DOI:

https://doi.org/10.13083/reveng.v28i.8005

Palavras-chave:

Soil attributes; Soil management; Soil porosity; Proctor-compaction test

Resumo

The transformation of natural ecosystems into agricultural environments modifies the soil structure and it may result in its compaction. Therefore, the objective of this work was to determine the optimum moisture for soil compaction (wot) and maximum soil compaction density (Dsmax) in different soil classes in western Bahia State. The samples were collected in five sites covering different soil classes: Orthic Quartzarenic Neosol (RQ), Orthic Ebanic Vertisol (VEo), Haplic Cambisol (CX) and two Red-Yellow Latosol, one already cropped (LVA) and another with native forest (LVA1).  Wot and Dsmax were determined according to ABNT NBR 7182 (1986) standards. Data were submitted to a regression analysis and also to the analysis of the principal components (PCA).  Wot presented a decreasing order: VEo> LVA> LVA1> CX> RQo, ranging between 8.20 and 15.00% and Dsmax showed the following order RQo> LVA> LVA1> CX> VE, ranging between 1.34 and 1,92 Mg.m-3. The wot was directly proportional to the clay content and the organic carbon and inversely proportional to the soil sand content. For Dsmax, the influence of the clay was inversely proportional whereas in wot, this variable promoted the growth.

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Biografia do Autor

Gustavo Tenório Araújo, Instituto Federal Baiano (IFBaiano)

Engenheiro Agrônomo, Assistente de Laboratório do Instituto Federal Baiano (IF-Baiano), Bom Jesus da Lapa, BA.

Joaquim Pedro Soares Neto, Universidade do Estado da Bahia (UNEB)

Engenheiro Agrícola, Doutor em Geotenia, professor Pleno da Universidade do Estado da Bahia (UNEB), Barreiras, BA.

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Publicado

2020-08-31

Como Citar

Araújo, G. T., Soares Neto, J. P., & Nunes, H. B. . (2020). SOIL DENSITY AND OPTIMUM MOISTURE FOR SOIL COMPACTION IN FIVE SOIL CLASSES IN WESTERN BAHIA STATE. REVISTA ENGENHARIA NA AGRICULTURA - REVENG, 28, 211-222. https://doi.org/10.13083/reveng.v28i.8005

Edição

Seção

Mecanização Agrícola