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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
16/08/1993 |
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Data da última atualização: |
16/02/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SPADOTTO, C. A.; LUIZ, A. J. B. |
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Afiliação: |
CLAUDIO APARECIDO SPADOTTO, CNPDA; ALFREDO JOSE BARRETO LUIZ, CPAC. |
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Título: |
Broken-stick model to determine the final period of possible companioship between weeds and soybean. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
In: INTERNATIONAL PLANT PROTECTION CONGRESS, 12., 1991, Rio de Janeiro. Oral and poster sessions - program and abstracts. Rio de Janeiro: [s.n.], 1991. |
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Páginas: |
n.p |
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Idioma: |
Inglês |
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Conteúdo: |
Productivity data got in two experiments were used with the objetive of evaluating statistical methods to determine the final period of possible companionship between weeds and soybean. The field experiments were delineated using the randomized block design. The crop was kept weed-free for increasing initial periods. Throught Duncan's Test and Tukey's Test (p=0,05), the final period began in 20 days, to both experiments. However, in quantitative series of treatment, the utilization of regression is very much useful and statistically indicated. Using the broken-stick regression model, the final period began in 21 days in exp. 01[Y-1962.04:1901 (X-21|X-21|); R2=0.70***], and 41 days in exp.02 \{Y=2397.45+11.84 (X-41|X-41|); R2=0.72***\}. Therefore, broken-stickmodel is able to supply important informations to weed management. |
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Palavras-Chave: |
Association; Model; Soya; Soybean. |
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Thesaurus Nal: |
statistics; weeds. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/10805/1/1991PC-Spadotto-Broken-Stick-1448.PDF
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Marc: |
LEADER 01508nam a2200205 a 4500
001 1010805
005 2023-02-16
008 1991 bl uuuu u00u1 u #d
100 1 $aSPADOTTO, C. A.
245 $aBroken-stick model to determine the final period of possible companioship between weeds and soybean.$h[electronic resource]
260 $aIn: INTERNATIONAL PLANT PROTECTION CONGRESS, 12., 1991, Rio de Janeiro. Oral and poster sessions - program and abstracts. Rio de Janeiro: [s.n.]$c1991
300 $an.p
520 $aProductivity data got in two experiments were used with the objetive of evaluating statistical methods to determine the final period of possible companionship between weeds and soybean. The field experiments were delineated using the randomized block design. The crop was kept weed-free for increasing initial periods. Throught Duncan's Test and Tukey's Test (p=0,05), the final period began in 20 days, to both experiments. However, in quantitative series of treatment, the utilization of regression is very much useful and statistically indicated. Using the broken-stick regression model, the final period began in 21 days in exp. 01[Y-1962.04:1901 (X-21|X-21|); R2=0.70***], and 41 days in exp.02 \{Y=2397.45+11.84 (X-41|X-41|); R2=0.72***\}. Therefore, broken-stickmodel is able to supply important informations to weed management.
650 $astatistics
650 $aweeds
653 $aAssociation
653 $aModel
653 $aSoya
653 $aSoybean
700 1 $aLUIZ, A. J. B.
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Embrapa Meio Ambiente (CNPMA) |
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