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| Registros recuperados : 61 | |
| 24. |  | FAGERIA, N. K.; MOREIRA, A.; MORAES, L. A. C.; MORAES, M. F. Root growth, nutrient uptake, and nutrient-use efficiency by roots of tropical legume cover crops as influenced by phosphorus fertilization. Communications in Soil Science and Plant Analysis, New York, v. 45, n. 5, p. 555-569, 2014.| Biblioteca(s): Embrapa Arroz e Feijão; Embrapa Soja. |
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| 27. | | MORAES, M. F.; NUTTI, M. R.; WATANABE, E.; CARVALHO, J. L. V. de. Práticas agronômicas para aumentar o fornecimento de nutrientes e vitaminas nos produtos agrícolas alimentares. In: SIMPÓSIO BRASILEIRO DE AGROPECUÁRIA SUSTENTÁVEL, 1., 2009, Viçosa, MG. Agricultura, pecuária e cooperativismo: anais. Viçosa, MG: Universidade Federal de Viçosa, 2009. p. 298-312.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 30. | | BRINGEL, L. M.; MORAES, M. F.; KRONKA, A. Z.; MORAES, F. H.; LIMA, E. M.; PONTES, N. C. Efeito da solarização do solo para controle da murcha bacteriana no tomateiro. Fitopatologia Brasileira, Brasília, DF, v. 30, p. S61, ago. 2006. Suplemento. Resumo 034. Trabalho apresentado no 38. Congresso Brasileiro de Fitopatologia, 2005, Brasília, DF.| Biblioteca(s): Embrapa Hortaliças. |
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| 31. | | MORAES, M. F.; REIS, A. R.; MORAES, L. A. C.; LAVRES-JUNIOR, J.; VIVIAN, R.; CABRAL, C. P.; MALAVOLTA, E. Effects of molybdenum, nickel, and nitrogen sources on the mineral nutrition and growth of rice plants. Communications in Soil Science and Plant Analysis, v. 40, p. 3238-3251, 2009.| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 34. | | MORAES, M. F.; KLIEMANN, H. J.; FAGERIA, N. K.; SEVERIANO, E. C.; MIRANDA, G. J.; LIMA, D. V. Doses de fósforo e de zinco na cultura do arroz de terras altas em uma areia quartzosa distrófica de cerrado. In: CONGRESSO DA CADEIA PRODUTIVA DE ARROZ, 1.; REUNIÃO NACIONAL DE PESQUISA DE ARROZ - RENAPA, 7., 2002, Florianópolis. Anais... Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2002. p. 547-548. (Embrapa Arroz e Feijão. Documentos, 134).| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 35. | | ALVES, S. J. F.; PASCOALINO, J. A. L.; MORAES, M. F.; ROCHA, M. de M.; ORSO, G.; VILLETTI, H. L. Biofortificação agronômica com zinco em feijão-caupi. In: REUNIÃO DE BIOFORTIFICAÇÃO NO BRASIL, 5., 2015, São Paulo. [Anais...]. Brasília, DF: Embrapa, 2015. T103. p. 24-27.| Biblioteca(s): Embrapa Meio-Norte. |
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| 36. | | RODAK, B. W.; MORAES, M. F. de; PASCOALINO, J. A. L.; OLIVEIRA JUNIOR, A. de; CASTRO, C. de; PAULETTI, V. Methods to quantify nickel in soils and plant tissues. Revista Brasileira de Ciência do Solo, v. 39, n. 3, p. 788-793, May/Jun. 2015.| Biblioteca(s): Embrapa Soja. |
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| 39. | | LIMA, D. V.; KLIEMANN, H. J.; FAGERIA, N. K.; MORAES, M. F. de; LEANDRO, W. M.; SEVERIANO, E. da C. Saturação por alumínio e relação Al/Ca para a cultura da soja em solos de cerrado. Revista Agricultura Tropical, v. 7, n. 1, p. 106-118, dez. 2003.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| Registros recuperados : 61 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
30/05/2023 |
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Data da última atualização: |
20/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 3 |
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Autoria: |
VOLF, M. R.; BENITES, V. de M.; AZEVEDO, A. C.; MORAES, M. F.; TIRITAN, C. S.; ROSOLEM, C. A. |
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Afiliação: |
MARCELO R. VOLF, UNIVERSIDADE DO OESTE PAULISTA; VINICIUS DE MELO BENITES, CNPS; ANTÔNIO C. AZEVEDO, UNIVERSIDADE DE SÃO PAULO; MILTON F. MORAES, UNIVERSIDADE FEDERAL DE MATO GROSSO; CARLOS S. TIRITAN, UNIVERSIDADE DO OESTE PAULISTA; CIRO A. ROSOLEM, UNIVERSIDADE DO ESTADO DE SÃO PAULO. |
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Título: |
Soil mineralogy and K reserves in soils from the Araguaia River valley, Brazil. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Geoderma Regional, e00654, Jun. 2023. |
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DOI: |
https://doi.org/10.1016/j.geodrs.2023.e00654 |
|
Idioma: |
Inglês |
|
Conteúdo: |
In humid tropical regions, intense weathering extensively depletes soil nutrients. However, soils in the Araguaia River Valley, Brazil, are not responsive to potassium (K) fertilization. To explore the reasons for this lack of responsiveness, an extensive exploratory soil sampling campaign was performed in areas of the valley with different land uses and soil management practices. Soil was sampled at depths of 0-20 cm and 20-40 cm, and exchangeable K (Ke) and non-exchangeable K (Kne) were assessed. The average soil Ke content in the region was 66.3 mg kg-1, above the minimum required value for crop growth. The soil Kne content ranged from one to five times the soil Ke content and was greater in the 20- to 40-cm layer than in the 0- to 20-cm layer. The linear correlation between Ke and Kne was significant only in the silt fraction. Mineralogical analysis of the clay and silt fractions of selected samples showed that the dominant minerals in the clay fraction were kaolinite, vermiculite with or without interlayer hydroxy-Al (HIV), illite, goethite, and gibbsite. Mica and feldspar were found in the silt fraction of several samples. In the silt and clay fractions, the main source of Kne was 2:1 phyllosilicates, which may be interstratifications of illite/vermiculite-hydroxy and illite/vermiculite. The results indicated that Urochloa spp. functions as a K scavenger in deep layers and promotes K biocycling in the system. An equation for predicting Kne extracted with nitric acid on the basis of soil Ke and silt contents was developed. MenosIn humid tropical regions, intense weathering extensively depletes soil nutrients. However, soils in the Araguaia River Valley, Brazil, are not responsive to potassium (K) fertilization. To explore the reasons for this lack of responsiveness, an extensive exploratory soil sampling campaign was performed in areas of the valley with different land uses and soil management practices. Soil was sampled at depths of 0-20 cm and 20-40 cm, and exchangeable K (Ke) and non-exchangeable K (Kne) were assessed. The average soil Ke content in the region was 66.3 mg kg-1, above the minimum required value for crop growth. The soil Kne content ranged from one to five times the soil Ke content and was greater in the 20- to 40-cm layer than in the 0- to 20-cm layer. The linear correlation between Ke and Kne was significant only in the silt fraction. Mineralogical analysis of the clay and silt fractions of selected samples showed that the dominant minerals in the clay fraction were kaolinite, vermiculite with or without interlayer hydroxy-Al (HIV), illite, goethite, and gibbsite. Mica and feldspar were found in the silt fraction of several samples. In the silt and clay fractions, the main source of Kne was 2:1 phyllosilicates, which may be interstratifications of illite/vermiculite-hydroxy and illite/vermiculite. The results indicated that Urochloa spp. functions as a K scavenger in deep layers and promotes K biocycling in the system. An equation for predicting Kne extracted with nitric acid on... Mostrar Tudo |
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Palavras-Chave: |
Intemperismo; Non-exchangeable potassium; Potássio não-trocável; Weathering soil. |
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Thesagro: |
Latossolo; Manejo do Solo. |
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Thesaurus NAL: |
Oxisols; Silt; Soil management. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02416naa a2200301 a 4500
001 2154084
005 2023-12-20
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.geodrs.2023.e00654$2DOI
100 1 $aVOLF, M. R.
245 $aSoil mineralogy and K reserves in soils from the Araguaia River valley, Brazil.$h[electronic resource]
260 $c2023
520 $aIn humid tropical regions, intense weathering extensively depletes soil nutrients. However, soils in the Araguaia River Valley, Brazil, are not responsive to potassium (K) fertilization. To explore the reasons for this lack of responsiveness, an extensive exploratory soil sampling campaign was performed in areas of the valley with different land uses and soil management practices. Soil was sampled at depths of 0-20 cm and 20-40 cm, and exchangeable K (Ke) and non-exchangeable K (Kne) were assessed. The average soil Ke content in the region was 66.3 mg kg-1, above the minimum required value for crop growth. The soil Kne content ranged from one to five times the soil Ke content and was greater in the 20- to 40-cm layer than in the 0- to 20-cm layer. The linear correlation between Ke and Kne was significant only in the silt fraction. Mineralogical analysis of the clay and silt fractions of selected samples showed that the dominant minerals in the clay fraction were kaolinite, vermiculite with or without interlayer hydroxy-Al (HIV), illite, goethite, and gibbsite. Mica and feldspar were found in the silt fraction of several samples. In the silt and clay fractions, the main source of Kne was 2:1 phyllosilicates, which may be interstratifications of illite/vermiculite-hydroxy and illite/vermiculite. The results indicated that Urochloa spp. functions as a K scavenger in deep layers and promotes K biocycling in the system. An equation for predicting Kne extracted with nitric acid on the basis of soil Ke and silt contents was developed.
650 $aOxisols
650 $aSilt
650 $aSoil management
650 $aLatossolo
650 $aManejo do Solo
653 $aIntemperismo
653 $aNon-exchangeable potassium
653 $aPotássio não-trocável
653 $aWeathering soil
700 1 $aBENITES, V. de M.
700 1 $aAZEVEDO, A. C.
700 1 $aMORAES, M. F.
700 1 $aTIRITAN, C. S.
700 1 $aROSOLEM, C. A.
773 $tGeoderma Regional, e00654, Jun. 2023.
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