| Registro completo |
| Provedor de dados: |
Rev. Bras. Ciênc. Solo
|
| 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 > 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
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
