PHYSICAL QUALITY OF AN OXISOL UNDER NO-TILLAGE AND CONVENTIONAL TILLAGE

Autor: Almeida, Cinara Xavier de, Jorge, Ricardo Falqueto, Centurion, Jose Frederico [UNESP], Borges, Elias Nascentes, Rossetti, Karina de Vares [UNESP], Pereira, Fabiana de Souza
Přispěvatelé: Univ Fed Uberlandia UFU, Universidade Estadual Paulista (Unesp), ICIAG UFU, Inst Fed Sao Paulo ISSP
Jazyk: portugalština
Rok vydání: 2014
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Zdroj: Web of Science
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Popis: Made available in DSpace on 2015-03-18T15:56:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-09-01Bitstream added on 2015-03-18T16:27:54Z : No. of bitstreams: 1 WOS000341526100013.pdf: 446808 bytes, checksum: 8952de7e6a2ce0aed51d5d8d7e7d608b (MD5) The understanding and quantification of the impact of tillage systems in their physical quality are fundamental in the development of sustainable agricultural systems. This study aimed to evaluate the quality of an Oxisol under conventional tillage (CT) and no-tillage system (NT), through different physical indicators. The management systems were: CT and NT for seven or eight consecutive years (medium textured soil) and CT and NT by nine and ten consecutive years (clay soil). Were determined, at the layers 0-0.10, 0.10-0.20; 0.20-0.30 m, soil resistance to penetration, total soil porosity, macroporosity and microporosity, soil water retention, S index, soil bulk density, maximum density and relative bulk density. Was observed great variation of soil resistance to penetration throughout the soybean and corn cycles, with its highest values were found in the surface layers. The NT showed greater resistance to penetration. Among the management systems, the results against indicators of soil physical quality were similar. Univ Fed Uberlandia UFU, Inst Ciencias Agr ICIAG, Monte Carmelo, MG, Brazil Univ Estadual Paulista UNESP, Dept Solos & Adubos, Fac Ciencias Agr & Vet FCAV, Jaboticabal, SP, Brazil ICIAG UFU, Uberlandia, MG, Brazil Dept Solos & Adubos FCAV UNESP, Jaboticabal, SP, Brazil Inst Fed Sao Paulo ISSP, Matao, SP, Brazil Univ Estadual Paulista UNESP, Dept Solos & Adubos, Fac Ciencias Agr & Vet FCAV, Jaboticabal, SP, Brazil Dept Solos & Adubos FCAV UNESP, Jaboticabal, SP, Brazil
Databáze: OpenAIRE
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