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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
06/01/1993 |
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Data da última atualização: |
31/08/2017 |
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Autoria: |
DICK, R. P. |
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Afiliação: |
202 Strand Agricultural Hall, Department of Crop and Soil Science, Oregon State University, Corvallis, OR 97331, USA. |
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Título: |
A review: long-term effect of agricultural systems on soil biochemical and microbial parameters. |
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Ano de publicação: |
1992 |
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Fonte/Imprenta: |
Agriculture, Ecosystems & Environment, v.40, p.25-36, 1992. |
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Idioma: |
Inglês |
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Conteúdo: |
This paper provides a review of recent developments on assessing the effect of agricultural systems on long-term productivity of soils. Cultivation of soils, besides affecting soil chemistry and structure, reduces biological activity due to the reduction of macoraggregates which provides and important microhabitat for microbial activity. Indirect evidence suggests that soil amendments such as animal and green manures, and plant diversity than consevation tillage in monocultural systems. The is increasing evidence that crop rotation promotes crop productivity by suppressing deleterious microorganisms that flourish under monoculture. Additions of inorganic fertilizers can increase soil biological activity because of an increased plant biomass production which upon incorporation stimulates soil biological activity. Conversely, limited evidence suggests that repeated applications of inorganic fertilizer nutritents can suppress production of certain soil enzymes that are are involved in cycling of a given nutrient. The observed transitory decrease in crop productivity during conversion from chemical intensive input to alternative systems (greater reliance on biological resources) may be due to the initial diminished biological potentials of conventionally managed soils to efficiently cycle and mineralize organic nutrient sources. This review reaffirms the continuing need for the maintenance of existing long-term experimental sites and establishment of new studies in major agrocecosystems throughout the world. MenosThis paper provides a review of recent developments on assessing the effect of agricultural systems on long-term productivity of soils. Cultivation of soils, besides affecting soil chemistry and structure, reduces biological activity due to the reduction of macoraggregates which provides and important microhabitat for microbial activity. Indirect evidence suggests that soil amendments such as animal and green manures, and plant diversity than consevation tillage in monocultural systems. The is increasing evidence that crop rotation promotes crop productivity by suppressing deleterious microorganisms that flourish under monoculture. Additions of inorganic fertilizers can increase soil biological activity because of an increased plant biomass production which upon incorporation stimulates soil biological activity. Conversely, limited evidence suggests that repeated applications of inorganic fertilizer nutritents can suppress production of certain soil enzymes that are are involved in cycling of a given nutrient. The observed transitory decrease in crop productivity during conversion from chemical intensive input to alternative systems (greater reliance on biological resources) may be due to the initial diminished biological potentials of conventionally managed soils to efficiently cycle and mineralize organic nutrient sources. This review reaffirms the continuing need for the maintenance of existing long-term experimental sites and establishment of new studies in major agrocec... Mostrar Tudo |
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Palavras-Chave: |
Cultura; Long-term productivity; Longo prazo; Rotacao; Soil tillage. |
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Thesagro: |
Bioquímica; Manejo; Microbiologia; Produtividade; Solo. |
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Thesaurus Nal: |
crop rotation; microbiology; soil biochemistry. |
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Categoria do assunto: |
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Marc: |
LEADER 02275naa a2200277 a 4500
001 1457563
005 2017-08-31
008 1992 bl --- 0-- u #d
100 1 $aDICK, R. P.
245 $aA review$blong-term effect of agricultural systems on soil biochemical and microbial parameters.
260 $c1992
520 $aThis paper provides a review of recent developments on assessing the effect of agricultural systems on long-term productivity of soils. Cultivation of soils, besides affecting soil chemistry and structure, reduces biological activity due to the reduction of macoraggregates which provides and important microhabitat for microbial activity. Indirect evidence suggests that soil amendments such as animal and green manures, and plant diversity than consevation tillage in monocultural systems. The is increasing evidence that crop rotation promotes crop productivity by suppressing deleterious microorganisms that flourish under monoculture. Additions of inorganic fertilizers can increase soil biological activity because of an increased plant biomass production which upon incorporation stimulates soil biological activity. Conversely, limited evidence suggests that repeated applications of inorganic fertilizer nutritents can suppress production of certain soil enzymes that are are involved in cycling of a given nutrient. The observed transitory decrease in crop productivity during conversion from chemical intensive input to alternative systems (greater reliance on biological resources) may be due to the initial diminished biological potentials of conventionally managed soils to efficiently cycle and mineralize organic nutrient sources. This review reaffirms the continuing need for the maintenance of existing long-term experimental sites and establishment of new studies in major agrocecosystems throughout the world.
650 $acrop rotation
650 $amicrobiology
650 $asoil biochemistry
650 $aBioquímica
650 $aManejo
650 $aMicrobiologia
650 $aProdutividade
650 $aSolo
653 $aCultura
653 $aLong-term productivity
653 $aLongo prazo
653 $aRotacao
653 $aSoil tillage
773 $tAgriculture, Ecosystems & Environment$gv.40, p.25-36, 1992.
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Embrapa Soja (CNPSO) |
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| Registros recuperados : 6 | |
| 6. |  | BALOTA, E. L.; YADA, I. F. U.; AMARAL, H. F.; NAKATANI, A. S.; HUNGRIA, M.; DICK, R. P.; COYNE, M. S. Soil quality in relation to forest conversion to perennial or annual cropping in southern Brasil. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 39, n. 4, p. 1003-1014, Jul./Aug. 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 6 | |
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