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Registro Completo |
Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Agroindústria Tropical; Embrapa Amapá; Embrapa Meio-Norte; Embrapa Tabuleiros Costeiros; Embrapa Unidades Centrais. |
Data corrente: |
06/03/1997 |
Data da última atualização: |
04/11/2016 |
Autoria: |
CARVALHO, H. W. L. de; GUIMARAES, P. E. de O.; SANTOS, M. X. dos; CARVALHO, P. C. L. de. |
Afiliação: |
HELIO WILSON LEMOS DE CARVALHO, CPATC. |
Título: |
Potencial genético da população de milho (Zea mays L.) CMS 453 para fins de melhoramento nos tabuleiros costeiros do Nordeste brasileiro. |
Ano de publicação: |
1996 |
Fonte/Imprenta: |
Aracaju: Embrapa-CPATC, 1996. |
Páginas: |
8 p. |
Série: |
(EMBRAPA-CPATC. Pesquisa em Andamento, 7). |
Idioma: |
Português |
Conteúdo: |
O trabalho objetiva obter uma variedade de milho de alta qualidade protéica, produtiva e adaptada às condições edafoclimáticas dos Tabuleiros costeiros do Nordeste, desde que a baixa fertilidade dos solos seja corrigida. |
Palavras-Chave: |
Advance; Brasil; Brasil - Nordeste; Maize; Melhoramento genetico; Milho - Melhoramento genético; Nordeste; Northeast; tabuleiro costeiro; Zea mays L. |
Thesagro: |
Melhoramento; Milho; População; Produção; Variedade; Zea Mays. |
Thesaurus Nal: |
Brazil. |
Categoria do assunto: |
-- F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 01276nam a2200373 a 4500 001 1359515 005 2016-11-04 008 1996 bl uuuu u0uu1 u #d 100 1 $aCARVALHO, H. W. L. de 245 $aPotencial genético da população de milho (Zea mays L.) CMS 453 para fins de melhoramento nos tabuleiros costeiros do Nordeste brasileiro. 260 $aAracaju: Embrapa-CPATC$c1996 300 $a8 p. 490 $a(EMBRAPA-CPATC. Pesquisa em Andamento, 7). 520 $aO trabalho objetiva obter uma variedade de milho de alta qualidade protéica, produtiva e adaptada às condições edafoclimáticas dos Tabuleiros costeiros do Nordeste, desde que a baixa fertilidade dos solos seja corrigida. 650 $aBrazil 650 $aMelhoramento 650 $aMilho 650 $aPopulação 650 $aProdução 650 $aVariedade 650 $aZea Mays 653 $aAdvance 653 $aBrasil 653 $aBrasil - Nordeste 653 $aMaize 653 $aMelhoramento genetico 653 $aMilho - Melhoramento genético 653 $aNordeste 653 $aNortheast 653 $atabuleiro costeiro 653 $aZea mays L 700 1 $aGUIMARAES, P. E. de O. 700 1 $aSANTOS, M. X. dos 700 1 $aCARVALHO, P. C. L. de
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Embrapa Tabuleiros Costeiros (CPATC) |
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Biblioteca(s): |
Embrapa Agricultura Digital. |
Data corrente: |
17/03/2022 |
Data da última atualização: |
17/03/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
SILVA, Y. F.; VALADARES, R. V.; DIAS, H. B.; CUADRA, S. V.; CAMPBELL, E. E.; LAMPARELLI, R. A. C.; MORO, E.; BATTISTI, R.; ALVES, M. R.; MAGALHÃES, P. S. G.; FIGUEIREDO, G. K. D. A. |
Afiliação: |
YANE FREITAS SILVA, FEAGRI/UNICAMP; RAFAEL VASCONCELOS VALADARES, NIPE/UNICAMP; HENRIQUE BORIOLO DIAS, NIPE/UNICAMP; SANTIAGO VIANNA CUADRA, CNPTIA; ELEANOR E. CAMPBELL, UNIVERSITY OF NEW HAMPSHIRE; RUBENS AUGUSTO CAMARGO LAMPARELLI, NIPE/UNICAMP; EDEMAR MORO, UNOESTE; RAFAEL BATTISTI, UFG; MARCELO R. ALVES, UNOESTE; PAULO S. G. MAGALHÃES, NIPE/UNICAMP; GLEYCE KELLY DANTAS ARAÚJO FIGUEIREDO, FEAGRI/UNICAMP. |
Título: |
Intense pasture management in Brazil in an integrated crop-livestock system simulated by the DayCent model. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Sustainability, v. 14, n. 6, p. 1-24, Mar. 2022. |
DOI: |
https://doi.org/10.3390/su14063517 |
Idioma: |
Inglês |
Notas: |
Article 3517. |
Conteúdo: |
Abstract. Process-based models (PBM) are important tools for understanding the benefits of Integrated Crop-Livestock Systems (ICLS), such as increasing land productivity and improving environmental conditions. PBM can provide insights into the contribution of agricultural production to climate change and help identify potential greenhouse gas (GHG) mitigation and carbon sequestration options. Rehabilitation of degraded lands is a key strategy for achieving food security goals and can reduce the need for new agricultural land. This study focused on the calibration and validation of the DayCent PBM for a typical ICLS adopted in Brazil from 2018 to 2020. We also present the DayCent parametrization for two forage species (ruzigrass and millet) grown simultaneously, bringing some innovation in the modeling challenges. We used aboveground biomass to calibrate the model, randomly selecting data from 70% of the paddocks in the study area. The calibration obtained a coefficient of determination (R2) of 0.69 and a relative RMSE of 37.0%. During the validation, we used other variables (CO2 flux, grain biomass, and soil water content) measured in the ICLS and performed a double validation for plant growth to evaluate the robustness of the model in terms of generalization. R2 validations ranged from 0.61 to 0.73, and relative RMSE from 11.3 to 48.3%. Despite the complexity and diversity of ICLS results show that DayCent can be used to model ICLS, which is an important step for future regional analyses and large-scale evaluations of the impacts of ICLS. MenosAbstract. Process-based models (PBM) are important tools for understanding the benefits of Integrated Crop-Livestock Systems (ICLS), such as increasing land productivity and improving environmental conditions. PBM can provide insights into the contribution of agricultural production to climate change and help identify potential greenhouse gas (GHG) mitigation and carbon sequestration options. Rehabilitation of degraded lands is a key strategy for achieving food security goals and can reduce the need for new agricultural land. This study focused on the calibration and validation of the DayCent PBM for a typical ICLS adopted in Brazil from 2018 to 2020. We also present the DayCent parametrization for two forage species (ruzigrass and millet) grown simultaneously, bringing some innovation in the modeling challenges. We used aboveground biomass to calibrate the model, randomly selecting data from 70% of the paddocks in the study area. The calibration obtained a coefficient of determination (R2) of 0.69 and a relative RMSE of 37.0%. During the validation, we used other variables (CO2 flux, grain biomass, and soil water content) measured in the ICLS and performed a double validation for plant growth to evaluate the robustness of the model in terms of generalization. R2 validations ranged from 0.61 to 0.73, and relative RMSE from 11.3 to 48.3%. Despite the complexity and diversity of ICLS results show that DayCent can be used to model ICLS, which is an important step for future reg... Mostrar Tudo |
Palavras-Chave: |
Biogeochemical model; Integrated Crop-Livestock Systems; Manejo de pastagens; Mixed pasture; Modelo biogeoquímico; Pastagem tropical; Sistemas Integrados Lavoura-Pecuária; Tropical pasture. |
Thesagro: |
Pastagem Mista; Soja; Solo Arenoso. |
Thesaurus NAL: |
Sandy soils; Soybeans. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/232632/1/AP-Intense-Pasture-2022.pdf
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Marc: |
LEADER 02818naa a2200421 a 4500 001 2141004 005 2022-03-17 008 2022 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.3390/su14063517$2DOI 100 1 $aSILVA, Y. F. 245 $aIntense pasture management in Brazil in an integrated crop-livestock system simulated by the DayCent model.$h[electronic resource] 260 $c2022 500 $aArticle 3517. 520 $aAbstract. Process-based models (PBM) are important tools for understanding the benefits of Integrated Crop-Livestock Systems (ICLS), such as increasing land productivity and improving environmental conditions. PBM can provide insights into the contribution of agricultural production to climate change and help identify potential greenhouse gas (GHG) mitigation and carbon sequestration options. Rehabilitation of degraded lands is a key strategy for achieving food security goals and can reduce the need for new agricultural land. This study focused on the calibration and validation of the DayCent PBM for a typical ICLS adopted in Brazil from 2018 to 2020. We also present the DayCent parametrization for two forage species (ruzigrass and millet) grown simultaneously, bringing some innovation in the modeling challenges. We used aboveground biomass to calibrate the model, randomly selecting data from 70% of the paddocks in the study area. The calibration obtained a coefficient of determination (R2) of 0.69 and a relative RMSE of 37.0%. During the validation, we used other variables (CO2 flux, grain biomass, and soil water content) measured in the ICLS and performed a double validation for plant growth to evaluate the robustness of the model in terms of generalization. R2 validations ranged from 0.61 to 0.73, and relative RMSE from 11.3 to 48.3%. Despite the complexity and diversity of ICLS results show that DayCent can be used to model ICLS, which is an important step for future regional analyses and large-scale evaluations of the impacts of ICLS. 650 $aSandy soils 650 $aSoybeans 650 $aPastagem Mista 650 $aSoja 650 $aSolo Arenoso 653 $aBiogeochemical model 653 $aIntegrated Crop-Livestock Systems 653 $aManejo de pastagens 653 $aMixed pasture 653 $aModelo biogeoquímico 653 $aPastagem tropical 653 $aSistemas Integrados Lavoura-Pecuária 653 $aTropical pasture 700 1 $aVALADARES, R. V. 700 1 $aDIAS, H. B. 700 1 $aCUADRA, S. V. 700 1 $aCAMPBELL, E. E. 700 1 $aLAMPARELLI, R. A. C. 700 1 $aMORO, E. 700 1 $aBATTISTI, R. 700 1 $aALVES, M. R. 700 1 $aMAGALHÃES, P. S. G. 700 1 $aFIGUEIREDO, G. K. D. A. 773 $tSustainability$gv. 14, n. 6, p. 1-24, Mar. 2022.
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