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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Milho e Sorgo; Embrapa Semiárido. |
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Data corrente: |
29/06/1994 |
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Data da última atualização: |
26/08/2015 |
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Autoria: |
CRUZ, J. C. |
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Afiliação: |
JOSE CARLOS CRUZ, CNPMS. |
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Título: |
Effect of crop rotation and tillage systems on some soil properties, root distribution and crop production. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
1982. |
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Páginas: |
220 p. |
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Idioma: |
Inglês |
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Notas: |
Tese (Doutorado) - Purdue University, West Lafayette, 1982. |
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Conteúdo: |
Tillage methods in the Corn Belt have changed rapidly in recent years. Tillage methods that eliminate moldboard plowing have become popular in localized areas. Also crop production has changed. Crop rotations that included grass-legume sod have changed to continuous corn and, more recently, the corn-soybean rotation has become a common agricultural practice in the region. A study of crop rotation and tillage systems has been conducted at the Purdue Agronomy Farm, on a Chalmers silty clay loam soil, since 1975. The objective of this research was to collect data on those plots to study how the tillage systems and crop rotations are affecting some soil physical properties of the soil such as bulk density, soil moisture content and soil temperature, residue cover, fertilizer incorporation, plant nutrition and root distribution and how such changes affect crop growth and yield. Bulk densities were lowest in the chiseled plots and highest in the no-tilled plots. Soil temperatures were highest in the conventional and ridge system and lowest in the no-till. Soil temperatures were higher when the previous crop was soybeans rather than corn. Conventional tillage had lower soil moisture content than the other tillage systems especially in plots with corn residue. Lowest pH values were measured at 7.5-15 cm depth as a result of nitrogen incorparation at that depth. Moldboard plowing had phosphorus and potassium well distributed in the plowed layer. Chisel, ridge and no-till had these elements concentrated in the upper few cms. Some chemical elements in corn and soybean leaves were affected by the treatments. Corn rooting density was greater on the upper 7.5 cm soil depth and lower in 7.5-15 cm soil depth in no-till than in chisel, ridge or the conventional systems. Soybean root density was higher in the upper layer and decreased with depth in all tillage systems. Even though the treatments affected several soil conditions and plant characteristics, soil temperature as a result of residue cover was the variable that most affect the differences in corn yield among the treatments. No significant correlation was found between soybean yield and any variable studied. MenosTillage methods in the Corn Belt have changed rapidly in recent years. Tillage methods that eliminate moldboard plowing have become popular in localized areas. Also crop production has changed. Crop rotations that included grass-legume sod have changed to continuous corn and, more recently, the corn-soybean rotation has become a common agricultural practice in the region. A study of crop rotation and tillage systems has been conducted at the Purdue Agronomy Farm, on a Chalmers silty clay loam soil, since 1975. The objective of this research was to collect data on those plots to study how the tillage systems and crop rotations are affecting some soil physical properties of the soil such as bulk density, soil moisture content and soil temperature, residue cover, fertilizer incorporation, plant nutrition and root distribution and how such changes affect crop growth and yield. Bulk densities were lowest in the chiseled plots and highest in the no-tilled plots. Soil temperatures were highest in the conventional and ridge system and lowest in the no-till. Soil temperatures were higher when the previous crop was soybeans rather than corn. Conventional tillage had lower soil moisture content than the other tillage systems especially in plots with corn residue. Lowest pH values were measured at 7.5-15 cm depth as a result of nitrogen incorparation at that depth. Moldboard plowing had phosphorus and potassium well distributed in the plowed layer. Chisel, ridge and no-till had these el... Mostrar Tudo |
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Palavras-Chave: |
Conservatio tillage; Crop; Cultivo; Cultural pratice; Distribuicao; Distribution; Maize; Plant; Praticas culturais; Production; Properties; Propriedade; Rotacao; Rotation; Rotational; Rotational cropping; Soil chemicophysical properties; System. |
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Thesagro: |
Conservação do Solo; Cultivo do Solo; Manejo do Solo; Milho; Planta; Propriedade Físico-Química; Raiz; Rotação de Cultura; Solo; Zea Mays. |
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Thesaurus Nal: |
crop production; roots; soil; soil management; tillage. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03547nam a2200529 a 4500
001 1473383
005 2015-08-26
008 1982 bl uuuu m 00u1 u #d
100 1 $aCRUZ, J. C.
245 $aEffect of crop rotation and tillage systems on some soil properties, root distribution and crop production.
260 $a1982.$c1982
300 $a220 p.
500 $aTese (Doutorado) - Purdue University, West Lafayette, 1982.
520 $aTillage methods in the Corn Belt have changed rapidly in recent years. Tillage methods that eliminate moldboard plowing have become popular in localized areas. Also crop production has changed. Crop rotations that included grass-legume sod have changed to continuous corn and, more recently, the corn-soybean rotation has become a common agricultural practice in the region. A study of crop rotation and tillage systems has been conducted at the Purdue Agronomy Farm, on a Chalmers silty clay loam soil, since 1975. The objective of this research was to collect data on those plots to study how the tillage systems and crop rotations are affecting some soil physical properties of the soil such as bulk density, soil moisture content and soil temperature, residue cover, fertilizer incorporation, plant nutrition and root distribution and how such changes affect crop growth and yield. Bulk densities were lowest in the chiseled plots and highest in the no-tilled plots. Soil temperatures were highest in the conventional and ridge system and lowest in the no-till. Soil temperatures were higher when the previous crop was soybeans rather than corn. Conventional tillage had lower soil moisture content than the other tillage systems especially in plots with corn residue. Lowest pH values were measured at 7.5-15 cm depth as a result of nitrogen incorparation at that depth. Moldboard plowing had phosphorus and potassium well distributed in the plowed layer. Chisel, ridge and no-till had these elements concentrated in the upper few cms. Some chemical elements in corn and soybean leaves were affected by the treatments. Corn rooting density was greater on the upper 7.5 cm soil depth and lower in 7.5-15 cm soil depth in no-till than in chisel, ridge or the conventional systems. Soybean root density was higher in the upper layer and decreased with depth in all tillage systems. Even though the treatments affected several soil conditions and plant characteristics, soil temperature as a result of residue cover was the variable that most affect the differences in corn yield among the treatments. No significant correlation was found between soybean yield and any variable studied.
650 $acrop production
650 $aroots
650 $asoil
650 $asoil management
650 $atillage
650 $aConservação do Solo
650 $aCultivo do Solo
650 $aManejo do Solo
650 $aMilho
650 $aPlanta
650 $aPropriedade Físico-Química
650 $aRaiz
650 $aRotação de Cultura
650 $aSolo
650 $aZea Mays
653 $aConservatio tillage
653 $aCrop
653 $aCultivo
653 $aCultural pratice
653 $aDistribuicao
653 $aDistribution
653 $aMaize
653 $aPlant
653 $aPraticas culturais
653 $aProduction
653 $aProperties
653 $aPropriedade
653 $aRotacao
653 $aRotation
653 $aRotational
653 $aRotational cropping
653 $aSoil chemicophysical properties
653 $aSystem
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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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: |
25/10/2020 |
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Data da última atualização: |
25/10/2020 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
VAZ, G. J.; SILVA NETO, L. de F. da; LIMA, R. N.; OLIVEIRA, S. R. de M. |
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Afiliação: |
GLAUBER JOSE VAZ, CNPTIA; LUIS DE FRANCA DA SILVA NETO, CNPS; RENATO NUNES LIMA, Unisal; STANLEY ROBSON DE MEDEIROS OLIVEIRA, CNPTIA. |
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Título: |
Uma API para a classificação de solos do Brasil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE AGROINFORMÁTICA, 12., 2019, Indaiatuba. Anais... Ponta Grossa: SBIAGRO, 2019. p. 63-72. |
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Idioma: |
Português |
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Conteúdo: |
O objetivo deste trabalho é disponibilizar por meio de uma API um sistema para a classificação de solos do Brasil, a fim de auxiliar no avanço da qualidade dos dados de solos e apoiar iniciativas de melhoria na gestão deste recurso. A API de classificação de solos facilita a curadoria de dados de solos e pode orientar um registro mais adequado destes dados. Com auxílio desta ferramenta, uma análise detalhada sobre a classificação de solos foi realizada em uma das mais importantes bases de dados de solos no país. Os resultados mostram que há uma necessidade muito grande de curadoria desses dados por parte dos especialistas do domínio e que a ferramenta considerada é poderosa aliada na melhoria da qualidade de dados de solos do Brasil. |
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Palavras-Chave: |
Curadoria de dados; Dados de solos; Data curation; SiBCS; Sistema Brasileiro de Classificação de Solos; Sistema especialista; Soil data; Solos brasileiros. |
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Thesagro: |
Classificação do Solo. |
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Thesaurus NAL: |
Expert systems; Soil classification. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01644nam a2200277 a 4500
001 2125827
005 2020-10-25
008 2019 bl uuuu u01u1 u #d
100 1 $aVAZ, G. J.
245 $aUma API para a classificação de solos do Brasil.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE AGROINFORMÁTICA, 12., 2019, Indaiatuba. Anais... Ponta Grossa: SBIAGRO, 2019. p. 63-72.$c2019
520 $aO objetivo deste trabalho é disponibilizar por meio de uma API um sistema para a classificação de solos do Brasil, a fim de auxiliar no avanço da qualidade dos dados de solos e apoiar iniciativas de melhoria na gestão deste recurso. A API de classificação de solos facilita a curadoria de dados de solos e pode orientar um registro mais adequado destes dados. Com auxílio desta ferramenta, uma análise detalhada sobre a classificação de solos foi realizada em uma das mais importantes bases de dados de solos no país. Os resultados mostram que há uma necessidade muito grande de curadoria desses dados por parte dos especialistas do domínio e que a ferramenta considerada é poderosa aliada na melhoria da qualidade de dados de solos do Brasil.
650 $aExpert systems
650 $aSoil classification
650 $aClassificação do Solo
653 $aCuradoria de dados
653 $aDados de solos
653 $aData curation
653 $aSiBCS
653 $aSistema Brasileiro de Classificação de Solos
653 $aSistema especialista
653 $aSoil data
653 $aSolos brasileiros
700 1 $aSILVA NETO, L. de F. da
700 1 $aLIMA, R. N.
700 1 $aOLIVEIRA, S. R. de M.
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