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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Soja. |
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Data corrente: |
25/10/2011 |
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Data da última atualização: |
19/07/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MOREIRA, A.; FAGERIA, N. K. |
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Afiliação: |
ADONIS MOREIRA, CNPSO; NAND KUMAR FAGERIA, CNPAF. |
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Título: |
Changes in soil properties under two different management systems in the Western Amazon. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, Philadelphia, v. 42, n. 21, p. 2666-2681, 2011. |
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DOI: |
10.1080/00103624.2011.614041 |
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Idioma: |
Inglês |
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Conteúdo: |
Upland soils in the Amazon basin are often highly weathered and therefore possess low plant-available nutrient contents. Soil fertility is principally maintained by geochemical, biochemical, and biogeochemical processes. Within these processes, the soil microbial biomass is responsible for many of the cycles and transformations of nutrients in soils. The aim of this work was to evaluate the changes in soil fertility, in the form of nitrogen (N) and microbial activity, as indicators of the dynamic of carbon (C) with two extractants [irradiation extraction (IE) and IRGA methods], N, and phosphorus (P) in an upland soil area containing a dystrophic Yellow Latosol (Xanthic Ferralsol) in the western Amazon (Brazil) with succession of two plant covers (citrus or pasture) and management. The study was carried out in two chronosequences: primary forest followed by citrus plantations and primary forest followed by pasture. The results showed that pasture has greater capacity to accumulate organic C and total N than either primary forest or citrus plantation. Removing forest to introduce pasture or citrus plantations influences the soil fertility and microbial biomass of C, N, and P in the soil. Under the edaphoclimatic conditions, the irradiation extraction and IRGA methods all proved efficient in determining the soil microbial C activity. In addition, regardless of the depth of soil, the predominant N form is ammonium (NH4+). |
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Thesagro: |
Análise do Solo; Estrutura do Solo; Fertilidade do solo; Floresta tropical; Fósforo; Manejo do solo; Nitrogênio. |
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Thesaurus Nal: |
Soil management. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal
P Recursos Naturais, Ciências Ambientais e da Terra
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02183naa a2200241 a 4500
001 1905047
005 2024-07-19
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1080/00103624.2011.614041$2DOI
100 1 $aMOREIRA, A.
245 $aChanges in soil properties under two different management systems in the Western Amazon.
260 $c2011
520 $aUpland soils in the Amazon basin are often highly weathered and therefore possess low plant-available nutrient contents. Soil fertility is principally maintained by geochemical, biochemical, and biogeochemical processes. Within these processes, the soil microbial biomass is responsible for many of the cycles and transformations of nutrients in soils. The aim of this work was to evaluate the changes in soil fertility, in the form of nitrogen (N) and microbial activity, as indicators of the dynamic of carbon (C) with two extractants [irradiation extraction (IE) and IRGA methods], N, and phosphorus (P) in an upland soil area containing a dystrophic Yellow Latosol (Xanthic Ferralsol) in the western Amazon (Brazil) with succession of two plant covers (citrus or pasture) and management. The study was carried out in two chronosequences: primary forest followed by citrus plantations and primary forest followed by pasture. The results showed that pasture has greater capacity to accumulate organic C and total N than either primary forest or citrus plantation. Removing forest to introduce pasture or citrus plantations influences the soil fertility and microbial biomass of C, N, and P in the soil. Under the edaphoclimatic conditions, the irradiation extraction and IRGA methods all proved efficient in determining the soil microbial C activity. In addition, regardless of the depth of soil, the predominant N form is ammonium (NH4+).
650 $aSoil management
650 $aAnálise do Solo
650 $aEstrutura do Solo
650 $aFertilidade do solo
650 $aFloresta tropical
650 $aFósforo
650 $aManejo do solo
650 $aNitrogênio
700 1 $aFAGERIA, N. K.
773 $tCommunications in Soil Science and Plant Analysis, Philadelphia$gv. 42, n. 21, p. 2666-2681, 2011.
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| 1. |  | RASEIRA, M. do C. B.; PEREIRA, J. F. M.; SIMONETO, P.; SCARANARI, C.; NAKASU, B. H.; FRANZON, R. C. Cultivar de pessegueiro brs regalo. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 22., 2012, Bento Gonçalves. Anais... Bento Gonçalves: SBF, 2012.| Tipo: Artigo em Anais de Congresso |
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