Chemical attributes of traditional agriculture and Caatinga managed at different depths in an Inceptisol

Revista Brasileira de Engenharia Agricola e Ambiental

Lira, Raniere B. de¹  Sousa Neto, Osvaldo N. de²  Silva, Eulene F. da³  Dias, Nildo da S.³  Freitas, Jair J. R. de³  Ferreira, Ana L. L.⁴ 

[1] Coopervida Cooperativa de Assessoria de Serviços, Mossoró, Brazil;Universidade Federal Rural do Semi-Árido, Angicos, Brazil;Universidade Federal Rural do Semi-Árido, Mossoró, Brazil;Universidade de São Paulo, Piracicaba, Brazil

关键词: soil quality;    pH;    exchangeable bases;    semi-arid region.;   

DOI  :  10.1590/1807-1929/agriambi.v21n1p50-55

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

The objective of this work was to evaluate changes in the chemical attributes of an Inceptisol in two areas of sustainable management of the Caatinga Biome and a conventional tillage, compared with the native forest. The areas were managed in the following way: in areas under sustainable management, the Caatinga was thinned in a savanna system (1), and in the other area, the Caatinga was thinned in strips (2); the area under conventional tillage was burned, plowed and harrowed (3), and the native forest (4). The following chemical attributes were analyzed: pH, electrical conductivity, Ca2+, Mg2+, H + Al, P, Na+, K+ and soil organic matter (SOM), calculating CEC and base saturation. The treatments were evaluated using multivariate analysis, at different depths up to 0.52 m. In the Caatinga areas thinned in a savanna system and in strips, the greater availability of exchangeable bases and SOM occurs close to the depth of 0.20 m and, in the area with traditional agriculture, it is limited to 0.10 m. In the area thinned in a savanna system, sodium showed a negative correlation with the other elements.

【 授权许可】

CC BY