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Correlações entre o pH e o grau de saturação em bases nos solos com horizonte B textural e horizonte B latossólico Relationship between pH and base saturation of soils

By Bernardo van Raij, Maria Thereza Dovichi Sacchetto and Toshio Igue

Abstract

Estudando amostras superficiais e amostras do B2 de perfis com B textural e B latossólico, verificou-se em cada caso a existência de correlação altamente significativa entre o pH e o grau de saturação em bases. A uma mesma saturação em bases, o pH mostrou-se mais elevado para as amostras do horizonte B2 de solos com horizonte B latossólico, mais baixo para o B2 de solos com horizonte B textural e intermediário para as amostras superficiais dos dois grupos de solos.<br>Upon studying the surface samples and samples for B2 horizon of soils with an argillic or latosolic B horizon, it was stated that in either case the relationship between pH and the base saturation degree was highly significant. However, the calculated regression equations were different and showed that, at the same base saturation degree, pH is higher for the B2 horizon of the latosols and lower for the B2 horizon of the soils with an argillic B horizon; for surface samples, the pH values were intermediate

Topics: Agriculture (General), S1-972, Agriculture, S, DOAJ:Agriculture (General), DOAJ:Agriculture and Food Sciences, Geology, QE1-996.5, Science, Q, DOAJ:Earth Sciences, DOAJ:Earth and Environmental Sciences
Publisher: Instituto Agronômico de Campinas
Year: 1968
DOI identifier: 10.1590/S0006-87051968000100017
OAI identifier: oai:doaj.org/article:8323bf0f5c4e4194b0db76b341aa13f3
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