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| DENICH, M.; VIELHAUER, K.; KATO, M. do S. A.; BLOCK, A.; KATO, O. R.; SÁ, T. D. de A.; LÜCKE, W.; VLEK, P. L. G.. |
| The slash-and-burn practice of land preparation that farmers use traditionally in forest-based fallow systems in the humid tropics causes land degradation and human health hazards. As an alternative to slash-and-burn, a mechanized, fire-free method of land preparation was evaluated on smallholdings in the eastern Amazon region. The use of machinery for harvesting fallow vegetation and chopping it for mulch eliminates the need for hard labor and fire for land clearing and increases labor productivity. Four different tractor-propelled choppers with power demand of 50 kW to 122 kW were tested. Their chopping capacity varied between 4.5 Mg and 20 Mg of fresh biomass per hour. The mechanized chop-and-mulch technology can be used in fallow vegetation that is up... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Vegetação secundária; Cultivo migratório; Biomassa; Equilíbrio nutritivo; Produtividade da terra; Produtividade do trabalho; Amazônia; Tipitamba. |
| Ano: 2004 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/408530 |
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