Risk analysis of crop rotation systems with triticale, under no-tillage
Autor(a) principal: | |
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Data de Publicação: | 1998 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/4858 |
Resumo: | During five years (1987 to 1991), in Passo Fundo, RS, Brazil, the effects of crop rotation systems with triticale were assessed. Five systems for triticale were studied: system I (triticale/soybean), system II (triticale/soybean and black oats/soybean), system III (triticale/soybean and common vetch/corn), system IV (triticale/soybean, common vetch/corn, and black oats/soybean), and V (triticale/soybean, triticale/soybean, common vetch/corn, and black oats/soybean). In 1990, black oats was replaced by white oats in systems II, IV, and system V. A randomized complete block design with three replications was used. Risk analysis over that period is presented in this paper. Two types of analysis were aplied on the net return of the systems: mean-variance analysis and risk analysis (safety-first and stochastic dominance). Identification of the best system studied through mean-variance analysis was not feasible. Through the stochastic dominance method, the system III, during the first period (1987 to 1989), and the system II, over the second period (1990 to 1991), were the best production alternatives to be offered to the farmers from both profit and lower risk standpoints. |
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Risk analysis of crop rotation systems with triticale, under no-tillageAnálise de risco de sistemas de rotação de culturas com triticale, sob sistema plantio diretocost; net return; mean-variance; stochastic dominancecusto; receita líquida; média variância; dominância estocásticaDuring five years (1987 to 1991), in Passo Fundo, RS, Brazil, the effects of crop rotation systems with triticale were assessed. Five systems for triticale were studied: system I (triticale/soybean), system II (triticale/soybean and black oats/soybean), system III (triticale/soybean and common vetch/corn), system IV (triticale/soybean, common vetch/corn, and black oats/soybean), and V (triticale/soybean, triticale/soybean, common vetch/corn, and black oats/soybean). In 1990, black oats was replaced by white oats in systems II, IV, and system V. A randomized complete block design with three replications was used. Risk analysis over that period is presented in this paper. Two types of analysis were aplied on the net return of the systems: mean-variance analysis and risk analysis (safety-first and stochastic dominance). Identification of the best system studied through mean-variance analysis was not feasible. Through the stochastic dominance method, the system III, during the first period (1987 to 1989), and the system II, over the second period (1990 to 1991), were the best production alternatives to be offered to the farmers from both profit and lower risk standpoints.Num período de cinco anos (1987 a 1991), foram avaliados, em Passo Fundo, RS, os efeitos de cinco sistemas de rotação de culturas com triticale: sistema I (triticale/soja), sistema II (triticale/soja e aveia-preta/soja), sistema III (triticale/soja e ervilhaca/milho), sistema IV (triticale/soja, ervilhaca/milho e aveia-preta/soja) e sistema V (triticale/soja, triticale/soja, ervilhaca/milho e aveia-preta/soja). Em 1990, nos sistemas II, IV e V, a aveia-preta foi substituída por aveia-branca. Utilizou-se o delineamento de blocos ao acaso, com três repetições. No presente trabalho, apresenta-se a análise de risco naquele período. Foram aplicados dois tipos de análise na receita líquida dos sistemas: análise da média variância e análise de risco (distribuição de probabilidade acumulada e dominância estocástica). Pela análise da média variância, não foi possível identificar o melhor sistema estudado. Pelo método da dominância estocástica, o sistema III, no período de 1987 a 1989, e o sistema II, no período de 1990 a 1991, mostraram ser as melhores alternativas de produção a serem oferecidas aos agricultores, dos pontos de vista de rentabilidade e de menor risco.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraPereira dos Santos, HenriqueAmbrosi, IvoCesar Barreneche Lhamby, JulioCarlos Baier, Augusto1998-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/4858Pesquisa Agropecuaria Brasileira; v.33, n.4, abr. 1998; 375-383Pesquisa Agropecuária Brasileira; v.33, n.4, abr. 1998; 375-3831678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/4858/6987info:eu-repo/semantics/openAccess2014-11-20T18:35:43Zoai:ojs.seer.sct.embrapa.br:article/4858Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-11-20T18:35:43Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Risk analysis of crop rotation systems with triticale, under no-tillage Análise de risco de sistemas de rotação de culturas com triticale, sob sistema plantio direto |
title |
Risk analysis of crop rotation systems with triticale, under no-tillage |
spellingShingle |
Risk analysis of crop rotation systems with triticale, under no-tillage Pereira dos Santos, Henrique cost; net return; mean-variance; stochastic dominance custo; receita líquida; média variância; dominância estocástica |
title_short |
Risk analysis of crop rotation systems with triticale, under no-tillage |
title_full |
Risk analysis of crop rotation systems with triticale, under no-tillage |
title_fullStr |
Risk analysis of crop rotation systems with triticale, under no-tillage |
title_full_unstemmed |
Risk analysis of crop rotation systems with triticale, under no-tillage |
title_sort |
Risk analysis of crop rotation systems with triticale, under no-tillage |
author |
Pereira dos Santos, Henrique |
author_facet |
Pereira dos Santos, Henrique Ambrosi, Ivo Cesar Barreneche Lhamby, Julio Carlos Baier, Augusto |
author_role |
author |
author2 |
Ambrosi, Ivo Cesar Barreneche Lhamby, Julio Carlos Baier, Augusto |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Pereira dos Santos, Henrique Ambrosi, Ivo Cesar Barreneche Lhamby, Julio Carlos Baier, Augusto |
dc.subject.por.fl_str_mv |
cost; net return; mean-variance; stochastic dominance custo; receita líquida; média variância; dominância estocástica |
topic |
cost; net return; mean-variance; stochastic dominance custo; receita líquida; média variância; dominância estocástica |
description |
During five years (1987 to 1991), in Passo Fundo, RS, Brazil, the effects of crop rotation systems with triticale were assessed. Five systems for triticale were studied: system I (triticale/soybean), system II (triticale/soybean and black oats/soybean), system III (triticale/soybean and common vetch/corn), system IV (triticale/soybean, common vetch/corn, and black oats/soybean), and V (triticale/soybean, triticale/soybean, common vetch/corn, and black oats/soybean). In 1990, black oats was replaced by white oats in systems II, IV, and system V. A randomized complete block design with three replications was used. Risk analysis over that period is presented in this paper. Two types of analysis were aplied on the net return of the systems: mean-variance analysis and risk analysis (safety-first and stochastic dominance). Identification of the best system studied through mean-variance analysis was not feasible. Through the stochastic dominance method, the system III, during the first period (1987 to 1989), and the system II, over the second period (1990 to 1991), were the best production alternatives to be offered to the farmers from both profit and lower risk standpoints. |
publishDate |
1998 |
dc.date.none.fl_str_mv |
1998-04-01 |
dc.type.none.fl_str_mv |
|
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://seer.sct.embrapa.br/index.php/pab/article/view/4858 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/4858 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/4858/6987 |
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 |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.33, n.4, abr. 1998; 375-383 Pesquisa Agropecuária Brasileira; v.33, n.4, abr. 1998; 375-383 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416658366234624 |