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| 126. |  | MELO, F. de B.; CARDOSO, M. J.; ANDRADE JUNIOR, A. S. de; RIBEIRO, V. Q. Comportamento produtivo de genótipos de mamoneira em baixa altitude em monocultivo e consorciados com feijão-caupi. In: CONGRESSO BRASILEIRO DE MAMONA, 4.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 1., 2010, João Pessoa. Inclusão social e energia: anais. Campina Grande: Embrapa Algodão, 2010. p. 1660-1665 1 CD-ROM. Trabalho publicado também no Livro de resumos do CONGRESSO BRASILEIRO DE MAMONA, 4.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 1., 2010, João Pessoa.| Biblioteca(s): Embrapa Meio-Norte. |
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| 132. | | MELO, F. de B.; CARDOSO, M. J.; ITALIANO, E. C.; RIBEIRO, V. Q. Comportamento produtivo de leguminosas para adubacao verde em sistema intercalar na cultura do milho. In: SEMINÁRIO DE PESQUISA AGROPECUÁRIA DO PIAUÍ, 8.; SIMPÓSIO AGROPECUÁRIO E FLORESTAL DO MEIO-NORTE, 1., 1994, Teresina. Pesquisa e desenvolvimento para o Meio-Norte: anais. Teresina: EMBRAPA Meio-Norte; São Luís: EMAPA, 1997. p. 51-55. (EMBRAPA-CPAMN. Documentos, 16)| Biblioteca(s): Embrapa Meio-Norte. |
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| 139. | | CARDOSO, M. J.; RIBEIRO, V. Q.; MELO, F. de B.; ANDRADE, M. J. B. de. Densidade de plantas no consórcio feijão-caupi com sorgo. In: CONGRESSO NACIONAL DE FEIJÃO-CAUPI, 2., 2009, Belém, PA. Da agricultura de subsistência ao agronegócio: anais. Belém, PA: Embrapa Amazônia Oriental, 2009. p. 408-411 1 CD-ROM.| Biblioteca(s): Embrapa Meio-Norte. |
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| 140. | | CARDOSO, M. J.; MELO, F. de B.; FREIRE FILHO, F. R.; FROTA, A. B. Densidades de plantas de caupi de porte enramador e moita em regime de sequeiro. In: SEMINÁRIO DE PESQUISA AGROPECUÁRIA DO PIAUÍ, 8.; SIMPÓSIO AGROPECUÁRIO E FLORESTAL DO MEIO-NORTE, 1., 1994, Teresina. Pesquisa e desenvolvimento para o Meio-Norte: anais. Teresina: EMBRAPA Meio-Norte; São Luís: EMAPA, 1997. p. 156-162. (EMBRAPA-CPAMN. Documentos, 16).| Biblioteca(s): Embrapa Meio-Norte. |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
25/09/2020 |
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Data da última atualização: |
22/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
MELO, F. de B.; SOUZA, H. A. de; BASTOS, E. A.; CARDOSO, M. J. |
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Afiliação: |
FRANCISCO DE BRITO MELO, CPAMN; HENRIQUE ANTUNES DE SOUZA, CPAMN; EDSON ALVES BASTOS, CPAMN; MILTON JOSE CARDOSO, CPAMN. |
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Título: |
Critical levels and sufficiency ranges for leaf nutrient diagnosis in cowpea grown in the Northeast region of Brazil. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Revista Ciência Agronômica, v. 51, n. 4, e20196954, 2020. |
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ISSN: |
1806-6690 |
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DOI: |
10.5935/1806-6690.20200071 |
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Idioma: |
Inglês |
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Conteúdo: |
Proposing sufficiency ranges and critical levels is an important technique for correct evaluation of leaf nutrient diagnosis. In this study, the objective was to propose critical levels and sufficiency ranges of macro- and micronutrients for the diagnostic leaf of cowpea, collected at flowering, with the results of macro- and micronutrients and productivity in the Northeast of Brazil. The critical level was calculated by the reduced normal distribution and by the boundary line method, which was also used to generate sufficiency ranges. For the critical level by reduced normal distribution, the relationship of the nutrients with 90% of maximum productivity was adopted. For the boundary line, the relationship of the nutrients that are in the upper line of a dispersion diagram was considered. The critical levels by reduced normal distribution for nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), copper (Cu), iron (Fe), manganese (Mn) and zinc (Zn) are: 35.3 g kg-1, 1.8 g kg-1, 20.5 g kg-1, 11.1 g kg-1, 2.6 g kg-1, 3.2 mg kg-1, 105 mg kg-1, 89 mg kg-1and 22 mg kg-1, respectively. However, the critical levels generated by the boundary line for N, P, K, Ca, Mg, Cu, Fe, Mn and Zn are 39.5 g kg-1, 2.3 g kg-1, 21.2 g kg-1, 11.3 g kg-1, 2.9 g kg-1, 4.2mg kg-1, 142 mg kg-1, 143mg kg-1 and 24 mg kg-1, respectively. The sufficiency ranges by the boundary line method, to achieve 95% of maximum productivity, are equivalent to 34.4-44.7g kg-1, 1.7-2.9 g kg-1,18.6-23.6 g kg-1,8.8-13.7 g kg-1,2.3-3.5 g kg-1,3.1-5.4 mg kg-1,73-210 mg kg-1,104-181 mg kg-1 and 22-27 mg kg-1 for N, P, K, Ca, Mg, Cu, Fe, Mn and Zn, respectively. MenosProposing sufficiency ranges and critical levels is an important technique for correct evaluation of leaf nutrient diagnosis. In this study, the objective was to propose critical levels and sufficiency ranges of macro- and micronutrients for the diagnostic leaf of cowpea, collected at flowering, with the results of macro- and micronutrients and productivity in the Northeast of Brazil. The critical level was calculated by the reduced normal distribution and by the boundary line method, which was also used to generate sufficiency ranges. For the critical level by reduced normal distribution, the relationship of the nutrients with 90% of maximum productivity was adopted. For the boundary line, the relationship of the nutrients that are in the upper line of a dispersion diagram was considered. The critical levels by reduced normal distribution for nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), copper (Cu), iron (Fe), manganese (Mn) and zinc (Zn) are: 35.3 g kg-1, 1.8 g kg-1, 20.5 g kg-1, 11.1 g kg-1, 2.6 g kg-1, 3.2 mg kg-1, 105 mg kg-1, 89 mg kg-1and 22 mg kg-1, respectively. However, the critical levels generated by the boundary line for N, P, K, Ca, Mg, Cu, Fe, Mn and Zn are 39.5 g kg-1, 2.3 g kg-1, 21.2 g kg-1, 11.3 g kg-1, 2.9 g kg-1, 4.2mg kg-1, 142 mg kg-1, 143mg kg-1 and 24 mg kg-1, respectively. The sufficiency ranges by the boundary line method, to achieve 95% of maximum productivity, are equivalent to 34.4-44.7g kg-1, 1.7-2.9 g kg-1,18.6-23... Mostrar Tudo |
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Thesagro: |
Feijão de Corda; Folha; Nutrição Vegetal; Nutriente Mineral; Vigna Unguiculata. |
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Thesaurus NAL: |
Cowpeas; Plant micronutrients; Plant nutrition; Vigna. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/216214/1/CriticalSufficiencyNutrientCowpeaRCA2020.pdf
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Marc: |
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024 7 $a10.5935/1806-6690.20200071$2DOI
100 1 $aMELO, F. de B.
245 $aCritical levels and sufficiency ranges for leaf nutrient diagnosis in cowpea grown in the Northeast region of Brazil.$h[electronic resource]
260 $c2020
520 $aProposing sufficiency ranges and critical levels is an important technique for correct evaluation of leaf nutrient diagnosis. In this study, the objective was to propose critical levels and sufficiency ranges of macro- and micronutrients for the diagnostic leaf of cowpea, collected at flowering, with the results of macro- and micronutrients and productivity in the Northeast of Brazil. The critical level was calculated by the reduced normal distribution and by the boundary line method, which was also used to generate sufficiency ranges. For the critical level by reduced normal distribution, the relationship of the nutrients with 90% of maximum productivity was adopted. For the boundary line, the relationship of the nutrients that are in the upper line of a dispersion diagram was considered. The critical levels by reduced normal distribution for nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), copper (Cu), iron (Fe), manganese (Mn) and zinc (Zn) are: 35.3 g kg-1, 1.8 g kg-1, 20.5 g kg-1, 11.1 g kg-1, 2.6 g kg-1, 3.2 mg kg-1, 105 mg kg-1, 89 mg kg-1and 22 mg kg-1, respectively. However, the critical levels generated by the boundary line for N, P, K, Ca, Mg, Cu, Fe, Mn and Zn are 39.5 g kg-1, 2.3 g kg-1, 21.2 g kg-1, 11.3 g kg-1, 2.9 g kg-1, 4.2mg kg-1, 142 mg kg-1, 143mg kg-1 and 24 mg kg-1, respectively. The sufficiency ranges by the boundary line method, to achieve 95% of maximum productivity, are equivalent to 34.4-44.7g kg-1, 1.7-2.9 g kg-1,18.6-23.6 g kg-1,8.8-13.7 g kg-1,2.3-3.5 g kg-1,3.1-5.4 mg kg-1,73-210 mg kg-1,104-181 mg kg-1 and 22-27 mg kg-1 for N, P, K, Ca, Mg, Cu, Fe, Mn and Zn, respectively.
650 $aCowpeas
650 $aPlant micronutrients
650 $aPlant nutrition
650 $aVigna
650 $aFeijão de Corda
650 $aFolha
650 $aNutrição Vegetal
650 $aNutriente Mineral
650 $aVigna Unguiculata
700 1 $aSOUZA, H. A. de
700 1 $aBASTOS, E. A.
700 1 $aCARDOSO, M. J.
773 $tRevista Ciência Agronômica$gv. 51, n. 4, e20196954, 2020.
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