Spatio-temporal variability of sugarcane yield efficiency in the state of São Paulo, Brazil.
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/922450 |
Resumo: | The objective of this work was to assess the spatial and temporal variability of sugarcane yield efficiency and yield gap in the state of São Paulo, Brazil, throughout 16 growing seasons, considering climate and soil as main effects, and socioeconomic factors as complementary. An empirical model was used to assess potential and attainable yields, using climate data series from 37 weather stations. Soil effects were analyzed using the concept of production environments associated with a soil aptitude map for sugarcane. Crop yield efficiency increased from 0.42 to 0.58 in the analyzed period (1990/1991 to 2005/2006 crop seasons), and yield gap consequently decreased from 58 to 42%. Climatic factors explained 43% of the variability of sugarcane yield efficiency, in the following order of importance: solar radiation, water deficit, maximum air temperature, precipitation, and minimum air temperature. Soil explained 15% of the variability, considering the average of all seasons. There was a change in the correlation pattern of climate and soil with yield efficiency after the 2001/2002 season, probably due to the crop expansion to the west of the state during the subsequent period. Socioeconomic, biotic and crop management factors together explain 42% of sugarcane yield efficiency in the state of São Paulo. |
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Spatio-temporal variability of sugarcane yield efficiency in the state of São Paulo, Brazil.Produção de cana-de-açúcarSocioeconomiaDeficit de produtividadeProductivityBiocombustívelSugarcaneBiofuelsThe objective of this work was to assess the spatial and temporal variability of sugarcane yield efficiency and yield gap in the state of São Paulo, Brazil, throughout 16 growing seasons, considering climate and soil as main effects, and socioeconomic factors as complementary. An empirical model was used to assess potential and attainable yields, using climate data series from 37 weather stations. Soil effects were analyzed using the concept of production environments associated with a soil aptitude map for sugarcane. Crop yield efficiency increased from 0.42 to 0.58 in the analyzed period (1990/1991 to 2005/2006 crop seasons), and yield gap consequently decreased from 58 to 42%. Climatic factors explained 43% of the variability of sugarcane yield efficiency, in the following order of importance: solar radiation, water deficit, maximum air temperature, precipitation, and minimum air temperature. Soil explained 15% of the variability, considering the average of all seasons. There was a change in the correlation pattern of climate and soil with yield efficiency after the 2001/2002 season, probably due to the crop expansion to the west of the state during the subsequent period. Socioeconomic, biotic and crop management factors together explain 42% of sugarcane yield efficiency in the state of São Paulo.FABIO RICARDO MARIN, CNPTIA; GUSTAVO LUÍS DE CARVALHO, ESALQ/USP.MARIN, F. R.CARVALHO, G. L. de2012-04-17T11:11:11Z2012-04-17T11:11:11Z2012-04-17T11:11:11Z2012-04-17T11:11:11Z2012-04-1720122012-05-28T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePesquisa Agropecuária Brasileira, Brasília, DF, v. 47, n. 2, p. 149-156, fev. 2012.http://www.alice.cnptia.embrapa.br/alice/handle/doc/922450enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T00:30:16Zoai:www.alice.cnptia.embrapa.br:doc/922450Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T00:30:16falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T00:30:16Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Spatio-temporal variability of sugarcane yield efficiency in the state of São Paulo, Brazil. |
title |
Spatio-temporal variability of sugarcane yield efficiency in the state of São Paulo, Brazil. |
spellingShingle |
Spatio-temporal variability of sugarcane yield efficiency in the state of São Paulo, Brazil. MARIN, F. R. Produção de cana-de-açúcar Socioeconomia Deficit de produtividade Productivity Biocombustível Sugarcane Biofuels |
title_short |
Spatio-temporal variability of sugarcane yield efficiency in the state of São Paulo, Brazil. |
title_full |
Spatio-temporal variability of sugarcane yield efficiency in the state of São Paulo, Brazil. |
title_fullStr |
Spatio-temporal variability of sugarcane yield efficiency in the state of São Paulo, Brazil. |
title_full_unstemmed |
Spatio-temporal variability of sugarcane yield efficiency in the state of São Paulo, Brazil. |
title_sort |
Spatio-temporal variability of sugarcane yield efficiency in the state of São Paulo, Brazil. |
author |
MARIN, F. R. |
author_facet |
MARIN, F. R. CARVALHO, G. L. de |
author_role |
author |
author2 |
CARVALHO, G. L. de |
author2_role |
author |
dc.contributor.none.fl_str_mv |
FABIO RICARDO MARIN, CNPTIA; GUSTAVO LUÍS DE CARVALHO, ESALQ/USP. |
dc.contributor.author.fl_str_mv |
MARIN, F. R. CARVALHO, G. L. de |
dc.subject.por.fl_str_mv |
Produção de cana-de-açúcar Socioeconomia Deficit de produtividade Productivity Biocombustível Sugarcane Biofuels |
topic |
Produção de cana-de-açúcar Socioeconomia Deficit de produtividade Productivity Biocombustível Sugarcane Biofuels |
description |
The objective of this work was to assess the spatial and temporal variability of sugarcane yield efficiency and yield gap in the state of São Paulo, Brazil, throughout 16 growing seasons, considering climate and soil as main effects, and socioeconomic factors as complementary. An empirical model was used to assess potential and attainable yields, using climate data series from 37 weather stations. Soil effects were analyzed using the concept of production environments associated with a soil aptitude map for sugarcane. Crop yield efficiency increased from 0.42 to 0.58 in the analyzed period (1990/1991 to 2005/2006 crop seasons), and yield gap consequently decreased from 58 to 42%. Climatic factors explained 43% of the variability of sugarcane yield efficiency, in the following order of importance: solar radiation, water deficit, maximum air temperature, precipitation, and minimum air temperature. Soil explained 15% of the variability, considering the average of all seasons. There was a change in the correlation pattern of climate and soil with yield efficiency after the 2001/2002 season, probably due to the crop expansion to the west of the state during the subsequent period. Socioeconomic, biotic and crop management factors together explain 42% of sugarcane yield efficiency in the state of São Paulo. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-04-17T11:11:11Z 2012-04-17T11:11:11Z 2012-04-17T11:11:11Z 2012-04-17T11:11:11Z 2012-04-17 2012 2012-05-28T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 47, n. 2, p. 149-156, fev. 2012. http://www.alice.cnptia.embrapa.br/alice/handle/doc/922450 |
identifier_str_mv |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 47, n. 2, p. 149-156, fev. 2012. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/922450 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503362942599168 |