Data/hora: 12/06/2024 09:49:38

Provedor de dados: | 90
País: | Brazil
Título: | Changes in the Structure of a Nigerian Soil under Different Land Management Practices
Autores: | Ogunwole,Joshua Olalekan; Pires,Luiz Fernando; Shehu,Bello Muhammed.
Data: | 2015-06-01
Ano: | 2015
Palavras-chave: | Arable cropping; Bush fallow; Soil water retention; Soil physical quality index.
Resumo: | Quantification of soil physical quality (SPQ) and pore size distribution (PSD) can assist understanding of how changes in land management practices influence dynamics of soil structure, and this understanding could greatly improve the predictability of soil physical behavior and crop yield. The objectives of this study were to measure the SPQ index under two different land management practices (the continuous arable cropping system and natural bush fallow system), and contrast the effects of these practices on the structure of PSD using soil water retention data. Soil water retention curves obtained from a pressure chamber were fitted to van Genuchten’s equation, setting m (= 1-1/n). Although values for soil bulk density were high, soils under the continuous arable cropping system had good SPQ, and maintained the capacity to support root development. However, soils under the natural bush fallow system had a worse structure than the continuous arable system, with restrictions in available water capacity. These two management systems had different PSDs. Results showed the inferiority of the natural bush fallow system with no traffic restriction (which is the common practice) in relation to the continuous arable cropping system in regard to physical quality and structure.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000300830
Editor: | Sociedade Brasileira de Ciência do Solo
Relação: | 10.1590/01000683rbcs20140017
Formato: | text/html
Fonte: | Revista Brasileira de Ciência do Solo  v.39 n.3 2015
Fonte: | info:eu-repo/semantics/openAccess