Soil chemical quality in agricultural land uses in the semiarid of Bahia

Authors

  • Alessandra Monteiro Salviano Embrapa Semiárido
  • Nelci Olszevski Universidade Federal do Vale do São Francisco
  • Sálvio Napoleão Soares Arcoverde Universidade Federal da Grande Dourados
  • Stefeson Bezerra de Melo Universidade Federal Rural do Semiárido
  • Vanderlise Giongo Embrapa Semiárido
  • Tony Jarbas Ferreira Cunha Embrapa Semiárido
  • Janielle Souza Pereira Universidade Federal do Vale do São Francisco

DOI:

https://doi.org/10.30612/agrarian.v11i42.7443

Keywords:

análise multivariada, atributos químicos, manejo do solo

Abstract

The aim of this work is to define indices of soil chemical quality in intense agricultural activity area surrounding Sobradinho Lake, State of Bahia, Brazil, by means of multivariate statistical techniques. Based on the factor scores, it was determined soil chemical quality index for depths of 0-0.10, 0.10-0.20 and 0.20-0.40 m, respectively, classifying soils as good, fair and poor, according to the performance of its attributes. Then realized the Discriminative Analysis in order to validate the results obtained and, knowing the chemical soil attributes that influence and are associated with soil quality in agriculture of the region. In this way, among the main results could be observed that the attributes exchangeable sodium percentage (ESP) and organic matter (OM) stood out as indicators of soil quality. The ESP was the more important attribute in discrimination models in the depths of 0.00-0.10 and 0.10-0.20 m and OM in the 0.20-0.40 m layer. These variables are the main responsible for discrimination and classification of soil groups. In general, the chemical quality of soils is not considered ideal mainly due to the low contents OM and the extremely sandy texture, denoting environmental fragility.

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Published

2018-11-07

How to Cite

Salviano, A. M., Olszevski, N., Arcoverde, S. N. S., de Melo, S. B., Giongo, V., Cunha, T. J. F., & Pereira, J. S. (2018). Soil chemical quality in agricultural land uses in the semiarid of Bahia. Agrarian Journal, 11(42), 328–336. https://doi.org/10.30612/agrarian.v11i42.7443

Issue

Vol. 11 No. 42 (2018)

Section

Article - Soil Science

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