Data/hora: 10/06/2024 00:50:26

Provedor de dados: | 90
País: | Brazil
Título: | Soil aggregation in a crop-livestock integration system under no-tillage
Autores: | Souza,Edicarlos Damacena de; Costa,Sérgio Ely Valadão Gigante de Andrade; Anghinoni,Ibanor; Carvalho,Paulo César de Faccio; Oliveira,Eric Victor Ferreira de; Martins,Amanda Posselt; Cao,Eduardo; Andrighetti,Marcelo.
Data: | 2010-08-01
Ano: | 2010
Palavras-chave: | Black oat; Italian ryegrass; Mean weighted diameter; Soil structure.
Resumo: | Grazing intensities can influence soil aggregation, which can be temporarily and permanently affected. The objective of this study was to evaluate the aggregate stability in water at the end of a soybean cycle and during pasture development in a crop-livestock integration system under no-tillage and grazing intensities. The experiment was initiated in 2001, in a dystrophic Red Latosol, after soybean harvest. Treatments consisted of pasture (black oat + Italian ryegrass) at heights of 10, 20 and 40 cm, grazed by young cattle, and a control (no grazing), followed by soybean cultivation, in a randomized block design. Soil samples were collected at the end of the soybean cycle (May/2007), during animal grazing (September/2007) and at the end of the grazing cycle (November/2007). The grazing period influences aggregate distribution, since in the September sampling (0-5 cm layer), there was a higher proportion of aggregates &gt; 4.76 mm at all grazing intensities. Soil aggregation is higher in no-tillage crop-livestock integration systems in grazed than in ungrazed areas.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000400033
Editor: | Sociedade Brasileira de Ciência do Solo
Relação: | 10.1590/S0100-06832010000400033
Formato: | text/html
Fonte: | Revista Brasileira de Ciência do Solo  v.34 n.4 2010
Fonte: | info:eu-repo/semantics/openAccess