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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte; Embrapa Milho e Sorgo. |
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Data corrente: |
21/06/2021 |
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Data da última atualização: |
17/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, I. C. M.; ANDRADE, C. de L. T. de; BORGES JÚNIOR, J. C. F.; SIMEÃO, R. M.; SILVA, A. P. C. M. |
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Afiliação: |
ISABELA CRISTINA MARTINS OLIVEIRA, Universidade Federal de São João del-Rei; CAMILO DE LELIS TEIXEIRA DE ANDRADE, CNPMS; JOÃO CARLOS FERREIRA BORGES JÚNIOR, Universidade Federal de São João del-Rei; ROSANGELA MARIA SIMEAO, CNPGC; ANA PAULA COELHO MADEIRA SILVA, Universidade Federal de São João del-Rei. |
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Título: |
Technical feasibility of using suboptimal irrigation in maize cropping. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Crop & Pasture Science, v. 72, p. 348-360, 2021. |
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Idioma: |
Inglês |
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Conteúdo: |
Maize (Zea mays L.) is one of the main cereal crops grown around the world and is widely used as food, feed and raw material in various industries. However, the crop is sensitive to weather conditions, and this causes large variations in yield between crop seasons. Suboptimal irrigation can be used to secure reasonable yields with increased water productivity. For maize grown offseason in the Cerrado biome of Brazil, there is little knowledge about the benefits of suboptimal irrigation. This study was designed to evaluate the effect of different irrigation amounts and two Brachiaria cultivars intercropped with maize on maize grain yield, biomass production for silage and water productivity in the second crop season. The study was conducted at Embrapa Milho e Sorgo Experimental Station, Sete Lagoas, MG, Brazil, in 2018 and 2019. Six irrigation levels were obtained by using a line-source sprinkler irrigation system. The irrigation levels used ranged from 94% to 11% of the cumulative reference evapotranspiration (ET0) in 2018, and from 90% to 34% of ET0 in 2019. Suboptimal irrigation above a certain level did not cause a significant decrease in silage biomass (59% and 71% of the ET0, in 2018 and 2019, respectively) and grain productivity (48% and 60% of the ET0, in 2018 and 2019, respectively). Additionally, there was an increase in crop water productivity and irrigation water productivity, for biomass of both silage and grains. The results demonstrate the potential of suboptimal irrigation as a strategy to reduce water resource usage while maintaining acceptable productivity levels. MenosMaize (Zea mays L.) is one of the main cereal crops grown around the world and is widely used as food, feed and raw material in various industries. However, the crop is sensitive to weather conditions, and this causes large variations in yield between crop seasons. Suboptimal irrigation can be used to secure reasonable yields with increased water productivity. For maize grown offseason in the Cerrado biome of Brazil, there is little knowledge about the benefits of suboptimal irrigation. This study was designed to evaluate the effect of different irrigation amounts and two Brachiaria cultivars intercropped with maize on maize grain yield, biomass production for silage and water productivity in the second crop season. The study was conducted at Embrapa Milho e Sorgo Experimental Station, Sete Lagoas, MG, Brazil, in 2018 and 2019. Six irrigation levels were obtained by using a line-source sprinkler irrigation system. The irrigation levels used ranged from 94% to 11% of the cumulative reference evapotranspiration (ET0) in 2018, and from 90% to 34% of ET0 in 2019. Suboptimal irrigation above a certain level did not cause a significant decrease in silage biomass (59% and 71% of the ET0, in 2018 and 2019, respectively) and grain productivity (48% and 60% of the ET0, in 2018 and 2019, respectively). Additionally, there was an increase in crop water productivity and irrigation water productivity, for biomass of both silage and grains. The results demonstrate the potential of suboptim... Mostrar Tudo |
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Palavras-Chave: |
Escassez de água; Sustentabilidade. |
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Thesagro: |
Água; Brachiaria; Consorciação de Cultura; Irrigação; Manejo; Milho; Produtividade; Zea Mays. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02411naa a2200289 a 4500
001 2132421
005 2022-11-17
008 2021 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, I. C. M.
245 $aTechnical feasibility of using suboptimal irrigation in maize cropping.$h[electronic resource]
260 $c2021
520 $aMaize (Zea mays L.) is one of the main cereal crops grown around the world and is widely used as food, feed and raw material in various industries. However, the crop is sensitive to weather conditions, and this causes large variations in yield between crop seasons. Suboptimal irrigation can be used to secure reasonable yields with increased water productivity. For maize grown offseason in the Cerrado biome of Brazil, there is little knowledge about the benefits of suboptimal irrigation. This study was designed to evaluate the effect of different irrigation amounts and two Brachiaria cultivars intercropped with maize on maize grain yield, biomass production for silage and water productivity in the second crop season. The study was conducted at Embrapa Milho e Sorgo Experimental Station, Sete Lagoas, MG, Brazil, in 2018 and 2019. Six irrigation levels were obtained by using a line-source sprinkler irrigation system. The irrigation levels used ranged from 94% to 11% of the cumulative reference evapotranspiration (ET0) in 2018, and from 90% to 34% of ET0 in 2019. Suboptimal irrigation above a certain level did not cause a significant decrease in silage biomass (59% and 71% of the ET0, in 2018 and 2019, respectively) and grain productivity (48% and 60% of the ET0, in 2018 and 2019, respectively). Additionally, there was an increase in crop water productivity and irrigation water productivity, for biomass of both silage and grains. The results demonstrate the potential of suboptimal irrigation as a strategy to reduce water resource usage while maintaining acceptable productivity levels.
650 $aÁgua
650 $aBrachiaria
650 $aConsorciação de Cultura
650 $aIrrigação
650 $aManejo
650 $aMilho
650 $aProdutividade
650 $aZea Mays
653 $aEscassez de água
653 $aSustentabilidade
700 1 $aANDRADE, C. de L. T. de
700 1 $aBORGES JÚNIOR, J. C. F.
700 1 $aSIMEÃO, R. M.
700 1 $aSILVA, A. P. C. M.
773 $tCrop & Pasture Science$gv. 72, p. 348-360, 2021.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
22/12/1999 |
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Data da última atualização: |
03/03/2010 |
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Autoria: |
CRUVINEL, P. E.; MINATEL, E. R. |
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Afiliação: |
EMBRAPA-CNPDIA. |
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Título: |
Use of proton induced X-ray analysis and image processing for determination of trace-elements distribution in agricultural fields. |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON SYSTEMS INTEGRATION, 3., Aug. 1994, Sao Paulo, SP. Los Alamitos: IEEE Computer Society, 1994. |
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Páginas: |
p.371-376. |
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Idioma: |
Inglês |
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Notas: |
Reprinted from ICSI'94 proceedings of the third International Conference on Systems Integration, Sao Paulo, SP, Brazil, Aug. 15-19, 1994. |
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Conteúdo: |
A method to study the spatial distribution of trace-elements in soil by using proton induced X-ray analysis (PIXE) and image technique is presented. A large number of trace-elements are present in soils, at concentration values in the range of parts per billion and tenths of parts of million. As for biological samples many elements are of great importance for the nutrition of the plants, while others are toxic, and others have an unknown role. Taking into account the spatial variability on the sampled field the samples were evaluated by PIXE and the concentration of several trace-elements were determined. In addition by using image processing it was possible to interpolate in between sampled points and a grid of trace-elements was establised. In particular the distribution of Ca over the sampled field is presented. |
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Palavras-Chave: |
Ca; Determination; Distribution; Elementos-traco; Image processing; Imagem; PIXE; Proton induced X-ray analysis; Trace-elements; X-ray. |
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Thesagro: |
Processamento; Raio X; Solo. |
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Thesaurus NAL: |
soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01900naa a2200325 a 4500
001 1026795
005 2010-03-03
008 1994 bl --- 0-- u #d
100 1 $aCRUVINEL, P. E.
245 $aUse of proton induced X-ray analysis and image processing for determination of trace-elements distribution in agricultural fields.
260 $c1994
300 $ap.371-376.
500 $aReprinted from ICSI'94 proceedings of the third International Conference on Systems Integration, Sao Paulo, SP, Brazil, Aug. 15-19, 1994.
520 $aA method to study the spatial distribution of trace-elements in soil by using proton induced X-ray analysis (PIXE) and image technique is presented. A large number of trace-elements are present in soils, at concentration values in the range of parts per billion and tenths of parts of million. As for biological samples many elements are of great importance for the nutrition of the plants, while others are toxic, and others have an unknown role. Taking into account the spatial variability on the sampled field the samples were evaluated by PIXE and the concentration of several trace-elements were determined. In addition by using image processing it was possible to interpolate in between sampled points and a grid of trace-elements was establised. In particular the distribution of Ca over the sampled field is presented.
650 $asoil
650 $aProcessamento
650 $aRaio X
650 $aSolo
653 $aCa
653 $aDetermination
653 $aDistribution
653 $aElementos-traco
653 $aImage processing
653 $aImagem
653 $aPIXE
653 $aProton induced X-ray analysis
653 $aTrace-elements
653 $aX-ray
700 1 $aMINATEL, E. R.
773 $tIn: INTERNATIONAL CONFERENCE ON SYSTEMS INTEGRATION, 3., Aug. 1994, Sao Paulo, SP. Los Alamitos: IEEE Computer Society, 1994.
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Embrapa Instrumentação (CNPDIA) |
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