Socioeconomic and environmental impacts of ratooning rice production in the microregion of Rio Formoso, Tocantins State

Detalhes bibliográficos
Autor(a) principal: Lanna, Anna Cristina
Data de Publicação: 2008
Outros Autores: da Silva, Osmira Fátima, Wander, Alcido Elenor, Barrigossi, José Alexandre Freitas, dos Santos, Alberto Baêta
Tipo de documento: Artigo
Idioma: por
Título da fonte: Redes (Santa Cruz do Sul. Online)
Texto Completo: https://online.unisc.br/seer/index.php/redes/article/view/639
Resumo: The rice (Oryza sativa L.) plants are able to generate fertile tillers after harvest. This sprouting, called ratoons, allows a second harvest, which may become a feasible alternative to increase yields in different ecosystems, mainly in low lands, due to its adaptability. As soil tillage and seeding are not required, the ratoon cultivation demands 60% less water and 50% less labor than the main crop. Additionally, it increases the rice production per cultivation area and time as the season is shorter than of the main crop. The success of the ratoon crop is determined by management practices adopted for the main crop, such as seeding date, height of cutting the plants, fertilizer management, seeding and harvesting procedures as well as practices that promote a fast and uniform sprouting, like nitrogen fertilizers, irrigation water management and crop protection. Ratoons represent an alternative to increase production without additional land area and with lower production costs, reducing seasonality of machinery use, increasing yields of tropical low lands with environmental and product quality, improving farmers livelihoods. The regional impacts of ratooning in the lowlands of Rio Formoso microregion of Tocantins State were evaluated in the economic, social and environmental dimensions, considering a period of five years. The economic assessment was based on the economic surplus method, using official production data from 2003 to 2007 and the production costs for irrigated rice in Tocantins State. Ratooning was estimated to be adopted in 20% of cultivated area, generating an economic surplus varying from 2 million reais in season 2002/2003 to 0.3 million reais in season 2006/2007, representing an additional production of 13 thousand tons of paddy in 2003 and 1.2 thousand tons in 2007. The social and environmental assessments were based on the Ambitec-Social and Ambitec-Agro, developed by Embrapa Environment. Rice ratooning in the study area obtained social impact index of 0.43 and an environmental impact index of 0.03.
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spelling Socioeconomic and environmental impacts of ratooning rice production in the microregion of Rio Formoso, Tocantins StateImpacto socioeconômico e ambiental da soca de arroz produzida na microrregião do Rio Formoso, Estado do Tocantinsincremento de produtividadeexcedente econômicosustentabilidadeAmbitec-AgroAmbitec-SocialThe rice (Oryza sativa L.) plants are able to generate fertile tillers after harvest. This sprouting, called ratoons, allows a second harvest, which may become a feasible alternative to increase yields in different ecosystems, mainly in low lands, due to its adaptability. As soil tillage and seeding are not required, the ratoon cultivation demands 60% less water and 50% less labor than the main crop. Additionally, it increases the rice production per cultivation area and time as the season is shorter than of the main crop. The success of the ratoon crop is determined by management practices adopted for the main crop, such as seeding date, height of cutting the plants, fertilizer management, seeding and harvesting procedures as well as practices that promote a fast and uniform sprouting, like nitrogen fertilizers, irrigation water management and crop protection. Ratoons represent an alternative to increase production without additional land area and with lower production costs, reducing seasonality of machinery use, increasing yields of tropical low lands with environmental and product quality, improving farmers livelihoods. The regional impacts of ratooning in the lowlands of Rio Formoso microregion of Tocantins State were evaluated in the economic, social and environmental dimensions, considering a period of five years. The economic assessment was based on the economic surplus method, using official production data from 2003 to 2007 and the production costs for irrigated rice in Tocantins State. Ratooning was estimated to be adopted in 20% of cultivated area, generating an economic surplus varying from 2 million reais in season 2002/2003 to 0.3 million reais in season 2006/2007, representing an additional production of 13 thousand tons of paddy in 2003 and 1.2 thousand tons in 2007. The social and environmental assessments were based on the Ambitec-Social and Ambitec-Agro, developed by Embrapa Environment. Rice ratooning in the study area obtained social impact index of 0.43 and an environmental impact index of 0.03.As plantas de arroz (Oryza sativa L.) possuem a capacidade de gerar perfilhos férteis após o corte dos colmos na colheita. Esta brotação, denominada soca, possibilita o segundo cultivo de arroz, o qual pode constituir-se numa alternativa prática para aumentar a produtividade de grãos em muitos agroecossistemas, principalmente em várzeas, visto que esta é a espécie mais adaptada. Sem a necessidade de preparo do solo nem de semeadura, o seu cultivo usa 60% menos água e 50% menos mão-de-obra que a cultura principal. Além disso, é uma prática que aumenta a produção de arroz por unidade de área e de tempo por apresentar menor duração de crescimento que um novo cultivo. O sucesso do aproveitamento da soca é determinado pelas práticas empregadas na cultura principal, tais como: época de plantio, altura do corte das plantas, manejo de fertilizantes, sistema de plantio e colheita, bem como pelas práticas que promovem uma rápida e uniforme brotação como fertilização nitrogenada, manejo de água e tratos fitossanitários. Ênfase deve ser dada na sua importância como uma alternativa para aumentar a produção sem acrescer a área de cultivo e com menor custo de produção, possibilitando reduzir a sazonalidade do uso de máquinas e implementos, aumentar a produtividade das várzeas tropicais com qualidade ambiental e de produção, além de incrementar a renda líquida dos produtores. Os impactos regionais da adoção dessa tecnologia, implantada em várzeas tropicais da microrregião do Rio Formoso, no Estado do Tocantins, foram avaliados nas dimensões econômica, social e ambiental, no período de cinco anos. Para avaliação econômica foi utilizada a metodologia do excedente econômico, utilizando-se dados conjunturais oficiais do período de 2003 a 2007 e do custo de produção do arroz irrigado no Estado do Tocantins. Para o período analisado, a soca foi adotada em 20% da área total cultivada com arroz irrigado e foi estimado um benefício econômico que variou de dois milhões de reais, na safra 2002/2003, para trezentos mil reais, na safra 2006/2007, correspondentes a um adicional de aproximadamente 13 mil toneladas de arroz em casca, em 2003, e 1,2 mil toneladas de arroz em casca, em 2007. Para avaliação social e ambiental utilizou-se o Sistema Ambitec Social e Ambiental, respectivamente, desenvolvido pela Embrapa Meio Ambiente, com obtenção do índice de impacto de 0,43 para a dimensão social e de 0,03 para a dimensão ambientalEdunisc - Universidade de Santa Cruz do Sul2008-12-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://online.unisc.br/seer/index.php/redes/article/view/63910.17058/redes.v13i1.639Redes ; Vol. 13 No. 1 (2008); 28-48Redes; Vol. 13 Núm. 1 (2008); 28-48Redes; Vol. 13 No. 1 (2008); 28-48Redes; v. 13 n. 1 (2008); 28-481982-6745reponame:Redes (Santa Cruz do Sul. Online)instname:Universidade de Santa Cruz do Sul (UNISC)instacron:UNISCporhttps://online.unisc.br/seer/index.php/redes/article/view/639/1478Lanna, Anna Cristinada Silva, Osmira FátimaWander, Alcido ElenorBarrigossi, José Alexandre Freitasdos Santos, Alberto Baêtainfo:eu-repo/semantics/openAccess2019-10-03T17:52:14Zoai:ojs.online.unisc.br:article/639Revistahttp://online.unisc.br/seer/index.php/redeshttp://online.unisc.br/seer/index.php/redes/oairedes_unisc_maff@terra.com.br||etges@unisc.br1982-67451414-7106opendoar:2019-10-03T17:52:14Redes (Santa Cruz do Sul. Online) - Universidade de Santa Cruz do Sul (UNISC)false
dc.title.none.fl_str_mv Socioeconomic and environmental impacts of ratooning rice production in the microregion of Rio Formoso, Tocantins State
Impacto socioeconômico e ambiental da soca de arroz produzida na microrregião do Rio Formoso, Estado do Tocantins
title Socioeconomic and environmental impacts of ratooning rice production in the microregion of Rio Formoso, Tocantins State
spellingShingle Socioeconomic and environmental impacts of ratooning rice production in the microregion of Rio Formoso, Tocantins State
Lanna, Anna Cristina
incremento de produtividade
excedente econômico
sustentabilidade
Ambitec-Agro
Ambitec-Social
title_short Socioeconomic and environmental impacts of ratooning rice production in the microregion of Rio Formoso, Tocantins State
title_full Socioeconomic and environmental impacts of ratooning rice production in the microregion of Rio Formoso, Tocantins State
title_fullStr Socioeconomic and environmental impacts of ratooning rice production in the microregion of Rio Formoso, Tocantins State
title_full_unstemmed Socioeconomic and environmental impacts of ratooning rice production in the microregion of Rio Formoso, Tocantins State
title_sort Socioeconomic and environmental impacts of ratooning rice production in the microregion of Rio Formoso, Tocantins State
author Lanna, Anna Cristina
author_facet Lanna, Anna Cristina
da Silva, Osmira Fátima
Wander, Alcido Elenor
Barrigossi, José Alexandre Freitas
dos Santos, Alberto Baêta
author_role author
author2 da Silva, Osmira Fátima
Wander, Alcido Elenor
Barrigossi, José Alexandre Freitas
dos Santos, Alberto Baêta
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Lanna, Anna Cristina
da Silva, Osmira Fátima
Wander, Alcido Elenor
Barrigossi, José Alexandre Freitas
dos Santos, Alberto Baêta
dc.subject.por.fl_str_mv incremento de produtividade
excedente econômico
sustentabilidade
Ambitec-Agro
Ambitec-Social
topic incremento de produtividade
excedente econômico
sustentabilidade
Ambitec-Agro
Ambitec-Social
description The rice (Oryza sativa L.) plants are able to generate fertile tillers after harvest. This sprouting, called ratoons, allows a second harvest, which may become a feasible alternative to increase yields in different ecosystems, mainly in low lands, due to its adaptability. As soil tillage and seeding are not required, the ratoon cultivation demands 60% less water and 50% less labor than the main crop. Additionally, it increases the rice production per cultivation area and time as the season is shorter than of the main crop. The success of the ratoon crop is determined by management practices adopted for the main crop, such as seeding date, height of cutting the plants, fertilizer management, seeding and harvesting procedures as well as practices that promote a fast and uniform sprouting, like nitrogen fertilizers, irrigation water management and crop protection. Ratoons represent an alternative to increase production without additional land area and with lower production costs, reducing seasonality of machinery use, increasing yields of tropical low lands with environmental and product quality, improving farmers livelihoods. The regional impacts of ratooning in the lowlands of Rio Formoso microregion of Tocantins State were evaluated in the economic, social and environmental dimensions, considering a period of five years. The economic assessment was based on the economic surplus method, using official production data from 2003 to 2007 and the production costs for irrigated rice in Tocantins State. Ratooning was estimated to be adopted in 20% of cultivated area, generating an economic surplus varying from 2 million reais in season 2002/2003 to 0.3 million reais in season 2006/2007, representing an additional production of 13 thousand tons of paddy in 2003 and 1.2 thousand tons in 2007. The social and environmental assessments were based on the Ambitec-Social and Ambitec-Agro, developed by Embrapa Environment. Rice ratooning in the study area obtained social impact index of 0.43 and an environmental impact index of 0.03.
publishDate 2008
dc.date.none.fl_str_mv 2008-12-11
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://online.unisc.br/seer/index.php/redes/article/view/639
10.17058/redes.v13i1.639
url https://online.unisc.br/seer/index.php/redes/article/view/639
identifier_str_mv 10.17058/redes.v13i1.639
dc.language.iso.fl_str_mv por
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dc.relation.none.fl_str_mv https://online.unisc.br/seer/index.php/redes/article/view/639/1478
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Edunisc - Universidade de Santa Cruz do Sul
publisher.none.fl_str_mv Edunisc - Universidade de Santa Cruz do Sul
dc.source.none.fl_str_mv Redes ; Vol. 13 No. 1 (2008); 28-48
Redes; Vol. 13 Núm. 1 (2008); 28-48
Redes; Vol. 13 No. 1 (2008); 28-48
Redes; v. 13 n. 1 (2008); 28-48
1982-6745
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