Physical indicators of soil quality of alfisol under conventional system of physic nut

Authors

  • Claudia Liane Rodrigues de Lima Universidade Federal de Pelotas
  • Clenio Nailto Pillon CPACT
  • Sérgio Delmar dos Anjos Silva
  • Roberta Jeske Kunde UFPel

Keywords:

Jatropha curcas. Porosity. Aeration. Aggregation.

Abstract

The implantation and development of alternative crops to production of biofuel are dependents of soil structural quality. The physic nut has been considered as one of the promising sources of biofuel. The objective of this study was to quantify the influence of use systems on some indicators of soil physical quality and to identify critical values of bulk density and air-filled porosity to crop development of an Alfisol under conventional system of physic nut. For the evaluation of physical indicators of soil quality, samples were collected with disturbed and indisturbed structure in different sampling positions (crop row and interrow). The samples were taken of the layers 0.00 - 0.05; 0.05 - 0.10 and 0.10 - 0.20 m depth. In the conditions of this study, concluded that: i) except to 0.10 to 0.20 m depth, the sampling positions influenced all soil physical parameters; ii) the crop row position presented higher macroporosity and total porosity in 0.00 to 0.10 m depth; iii) the critical air-filled porosity and bulk density values for plant growth were 0.74 and 1.49 Mg m-3 and iv) considering the bulk density and air-filled porosity only the crop row position no indicate restrictive values to plants development.

Downloads

Download data is not yet available.

Author Biographies

Claudia Liane Rodrigues de Lima, Universidade Federal de Pelotas

Engenheira Agricola, Doutora em Solos e Nutrição de Plantas e Professora de Física do Solo do Departamento de Solos da Faculdade de Agronomia Eliseu Maciel da Universidade Federal de Pelotas, RS

Clenio Nailto Pillon, CPACT

Doutor em agronomia, pesquisador da embrapa clima temperado.

Roberta Jeske Kunde, UFPel

mestranda em agronomia (solos)

Published

2012-02-09

How to Cite

RODRIGUES DE LIMA, C.L., PILLON, C.N., SILVA, S.D. dos A. and KUNDE, R.J., 2012. Physical indicators of soil quality of alfisol under conventional system of physic nut . Bioscience Journal [online], vol. 28, no. 1. [Accessed26 May 2022]. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/13231.

Issue

Section

Supplement 1 - XXXIII Congresso Brasileiro de Ciência do Solo