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Registro Completo |
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Biblioteca(s): |
Embrapa Soja; Embrapa Trigo. |
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Data corrente: |
19/06/1996 |
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Data da última atualização: |
05/12/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BUSSCHER, W. J.; REEVES, D. W.; KOCHHANN, R. A.; BAUER, P. J.; MULLINS, G. L.; CLAPHAM, W. M.; KEMPER, W. D.; GALERANI, P. R. |
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Afiliação: |
1 Coastal Plain Soil, Water, and Plant Research Center; 2, 4, 6-7 USDA-ARS; 3 EMBRAPA-CNPT; 5 Auburn University; 8 EMBRAPA-CNPSo. |
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Título: |
Conservation farming in southern Brazil: using cover crops to decrease erosion and increase infiltration. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
Journal of Soil and Water Conservation, v. 51, n. 3, p. 188-192, May-June 1996. |
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ISSN: |
0022-4561 |
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Idioma: |
Inglês |
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Conteúdo: |
Six US scientists visited agricultural research sites and farms in southern Brazil. In Rio Grande do Sul and southern Parana, researchers and farmers believed in terracing, minimum tillage, and winter cover. They credited these conservation techniques with stabilization of soils in hilly to mountainous terrain. They claimed a better quality of life based on reclaimed land, increased yields, clean water, and stable roads. With 1600 mm of rain uniformly spaced throughout the year, winter fallow fields eroded. Erosion was reduced with winter cover crops. Minimum tillage management increased cover crop effectiveness. Terracing, often a berm every 10 to 30 m along the contour, helped by reducing slope length and increasing infiltration. Terraces interfere with normal farming operations since equipment cannot easily traverse them. Farmers either plant them in permanent cover or eliminate them after a few years and rely on cover crops to control erosion. Infiltration rates were 136 mm/hr for forests, 0.2 mm/hr for cropped fields, and 31.3 mm/hr for fields seven years in minimum till. Success in Rio Grande do Sul and southern Parana led farmers in northern Parana to try them. They had similar problems and plentiful rainfall, 1500 mm/year. These conservation techniques did not work because of different crops (more sugar cane and coffee, fewer corn and soybeans) and different soil types. Flocculate dispersion might be a problem in northern Parana but more study is needed. |
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Palavras-Chave: |
Brasil; Parana; Semeadura direta; Soybean. |
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Thesagro: |
Conservação do Solo; Controle da Erosão; Soja. |
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Thesaurus Nal: |
Brazil; erosion control; no-tillage; soil conservation. |
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Categoria do assunto: |
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X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02474naa a2200349 a 4500
001 1822203
005 2012-12-05
008 1996 bl uuuu u00u1 u #d
022 $a0022-4561
100 1 $aBUSSCHER, W. J.
245 $aConservation farming in southern Brazil$busing cover crops to decrease erosion and increase infiltration.$h[electronic resource]
260 $c1996
520 $aSix US scientists visited agricultural research sites and farms in southern Brazil. In Rio Grande do Sul and southern Parana, researchers and farmers believed in terracing, minimum tillage, and winter cover. They credited these conservation techniques with stabilization of soils in hilly to mountainous terrain. They claimed a better quality of life based on reclaimed land, increased yields, clean water, and stable roads. With 1600 mm of rain uniformly spaced throughout the year, winter fallow fields eroded. Erosion was reduced with winter cover crops. Minimum tillage management increased cover crop effectiveness. Terracing, often a berm every 10 to 30 m along the contour, helped by reducing slope length and increasing infiltration. Terraces interfere with normal farming operations since equipment cannot easily traverse them. Farmers either plant them in permanent cover or eliminate them after a few years and rely on cover crops to control erosion. Infiltration rates were 136 mm/hr for forests, 0.2 mm/hr for cropped fields, and 31.3 mm/hr for fields seven years in minimum till. Success in Rio Grande do Sul and southern Parana led farmers in northern Parana to try them. They had similar problems and plentiful rainfall, 1500 mm/year. These conservation techniques did not work because of different crops (more sugar cane and coffee, fewer corn and soybeans) and different soil types. Flocculate dispersion might be a problem in northern Parana but more study is needed.
650 $aBrazil
650 $aerosion control
650 $ano-tillage
650 $asoil conservation
650 $aConservação do Solo
650 $aControle da Erosão
650 $aSoja
653 $aBrasil
653 $aParana
653 $aSemeadura direta
653 $aSoybean
700 1 $aREEVES, D. W.
700 1 $aKOCHHANN, R. A.
700 1 $aBAUER, P. J.
700 1 $aMULLINS, G. L.
700 1 $aCLAPHAM, W. M.
700 1 $aKEMPER, W. D.
700 1 $aGALERANI, P. R.
773 $tJournal of Soil and Water Conservation$gv. 51, n. 3, p. 188-192, May-June 1996.
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Registro original: |
Embrapa Trigo (CNPT) |
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