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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
02/01/2019 |
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Data da última atualização: |
25/02/2019 |
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Autoria: |
CORASSA, G. M.; SANTI, A. L.; SILVA, V. R. da; BARON, F. A.; REIMCHE, G. B.; FIORESI, D.; DELLA FLORA, D. P. |
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Afiliação: |
Geomar Mateus Corassa, Universidade Federal de Santa Maria - UFSM Centro de Ciências Rurais/Departamento de Solos; Antônio Luís Santi, Universidade Federal de Santa Maria - UFSM/Departamento de Ciências Agronômicas e Ambientais; Vanderlei Rodrigues da Silva, Universidade Federal de Santa Maria - UFSM/Departamento de Ciências Agronômicas e Ambientais; Felipe Arthur Baron, Universidade Federal de Santa Maria - UFSM Centro de Ciências Rurais/Departamento de Solos; Geovane Boschmann Reimche, Universidade Federal de Santa Maria - UFSM Centro de Ciências Rurais/Departamento de Solos; Dejales Fioresi, Universidade Federal de Santa Maria - UFSM Centro de Ciências Rurais/Departamento de Solos; Diandra Pinto Della Flora, Universidade Federal de Santa Maria - UFSM/Departamento de Ciências Agronômicas e Ambientais. |
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Título: |
Soil chemical attributes restricting grain yield in Oxisols under no-tillage system. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 11, p. 1203-1212, Nov. 2018. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Atributos químicos do solo restritivos à produtividade de grãos em Latossolo sob sistema plantio direto. |
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Conteúdo: |
The objective of this work was to identify soil chemical attributes restricting grain yield in Oxisols under the no-tillage system, using directed soil sampling. High, medium, and low yield zones were defined in two agricultural fields using historical yield data of several crops. The yield zones were defined based on the harvest maps of the following crops: corn in 2008/2009, white oat in 2009, and corn in 2012/2013 in field I, with 117.70 ha; and corn in 2009/2010, soybean in 2010/2011, and wheat in 2012 in field II, with 107.30 ha. Soil sampling points were georeferenced in each yield zone, where samples were collected at eight soil depths, spaced 0.05 m apart, totaling 80 variables. Low yields were associated with low cation exchange capacity, low phosphorus and organic matter contents, and high clay content. In both studied fields, the highest organic matter content in the subsurface layers was the main indicator of high yield. Soil sampling considering yield zones is an efficient strategy to identify chemical attributes restricting grain yield and also allows guiding more precise site-specific interventions. |
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Palavras-Chave: |
Site-specific management; Yield zones. |
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Thesaurus Nal: |
Organic matter; Precision agriculture; Soil sampling. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/189561/1/Soil-chemical-attributes-restricting.pdf
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Marc: |
LEADER 02050naa a2200265 a 4500
001 2102738
005 2019-02-25
008 2018 bl uuuu u00u1 u #d
100 1 $aCORASSA, G. M.
245 $aSoil chemical attributes restricting grain yield in Oxisols under no-tillage system.$h[electronic resource]
260 $c2018
500 $aTítulo em português: Atributos químicos do solo restritivos à produtividade de grãos em Latossolo sob sistema plantio direto.
520 $aThe objective of this work was to identify soil chemical attributes restricting grain yield in Oxisols under the no-tillage system, using directed soil sampling. High, medium, and low yield zones were defined in two agricultural fields using historical yield data of several crops. The yield zones were defined based on the harvest maps of the following crops: corn in 2008/2009, white oat in 2009, and corn in 2012/2013 in field I, with 117.70 ha; and corn in 2009/2010, soybean in 2010/2011, and wheat in 2012 in field II, with 107.30 ha. Soil sampling points were georeferenced in each yield zone, where samples were collected at eight soil depths, spaced 0.05 m apart, totaling 80 variables. Low yields were associated with low cation exchange capacity, low phosphorus and organic matter contents, and high clay content. In both studied fields, the highest organic matter content in the subsurface layers was the main indicator of high yield. Soil sampling considering yield zones is an efficient strategy to identify chemical attributes restricting grain yield and also allows guiding more precise site-specific interventions.
650 $aOrganic matter
650 $aPrecision agriculture
650 $aSoil sampling
653 $aSite-specific management
653 $aYield zones
700 1 $aSANTI, A. L.
700 1 $aSILVA, V. R. da
700 1 $aBARON, F. A.
700 1 $aREIMCHE, G. B.
700 1 $aFIORESI, D.
700 1 $aDELLA FLORA, D. P.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 53, n. 11, p. 1203-1212, Nov. 2018.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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