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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
16/08/2007 |
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Data da última atualização: |
25/05/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
COELHO, A. M.; DORAM, J. W.; SCHEPERS, J. S. |
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Afiliação: |
ANTONIO MARCOS COELHO, CNPMS; J. W. Doran, University of Nebraska; J. S. Schepers, University of Nebraska. |
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Título: |
Exploring cause and effect relationships of soil fertility on corn yield variability. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 31., 2007, Gramado. Conquistas e desafios da ciência do solo brasileira: [resumos expandidos]. Porto Alegre: UFRGS: SBCS, 2007. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Inglês |
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Conteúdo: |
In an experimenl conducted 10 asses lhe potencial causes of corn yield variabilily, the variation of phosphorus (P) and manganese (Mn), accounted for 79% of the variability in grain yield. Based on yield map the experimental field was divided in two general areas of management. One area (a) with grain yield below the average (11.30 Mg ha-1) and another one (b) with grain yield above average. Three treatments were applied 10 the corn: (1) 92 kg of P2O5 ha.-1 banded at 10 cm beside of planls and incorporated inlo lhe soil; (2) Mn applied on the com foliage at rate of 1.1 kg ha.-1 at the four and eight- leaf growth stages and, (3) combination of trealment 1 plus 2. Also, with lhe use of CERES-Maize model we eslimated the corn grain yield in area (a) by simulating two situations: (1) appliction of manure at 25 Mg ha-1 (dry matter basis), plus 100 kg ha-1 de ammonium phosphale al sowing time and 50 kg of N ha-1 applied side-dress as ammonium nitrate; (2) no manure, 100 kg ha-1 de ammonium phosphate at sowing time and 100 kg of N ha-1 applied side-dress as ammonium nitrate. The application of P and Mn fertilizers did not improve significantly the corn grain yield. Compared to the control, extra fertilizer application increase the grain yield by 1.25,0,86, and 1.27 Mg ha-1 due to applicalion of Mn, P, and combination of both fertilizers, respectively. These findings indicate that either yield was limited by constraints other than P and Mn, or application of P or Mn fertilizers did not adequately alleviate the deficiency of these nutrients in eroded soils. Corn grain yields measured in area (a) in 1997, ranged from 8.5 to 11.0 Mg ha-1 and averaged 10.5 Mg ha-1. The grain yield of 10.9 Mg ha-1simulated by CERES-Maize model withoul use of manure, was similar 10 the yield (10.5 Mg ha-1) measured for area (a). With the use of manure, the CERES-Maize model simulated a grain yield of 14.1 Mg ha-1, similar to the high grain yield (13.8 Mg ha-1) measured on the besl area of the field (area b). MenosIn an experimenl conducted 10 asses lhe potencial causes of corn yield variabilily, the variation of phosphorus (P) and manganese (Mn), accounted for 79% of the variability in grain yield. Based on yield map the experimental field was divided in two general areas of management. One area (a) with grain yield below the average (11.30 Mg ha-1) and another one (b) with grain yield above average. Three treatments were applied 10 the corn: (1) 92 kg of P2O5 ha.-1 banded at 10 cm beside of planls and incorporated inlo lhe soil; (2) Mn applied on the com foliage at rate of 1.1 kg ha.-1 at the four and eight- leaf growth stages and, (3) combination of trealment 1 plus 2. Also, with lhe use of CERES-Maize model we eslimated the corn grain yield in area (a) by simulating two situations: (1) appliction of manure at 25 Mg ha-1 (dry matter basis), plus 100 kg ha-1 de ammonium phosphale al sowing time and 50 kg of N ha-1 applied side-dress as ammonium nitrate; (2) no manure, 100 kg ha-1 de ammonium phosphate at sowing time and 100 kg of N ha-1 applied side-dress as ammonium nitrate. The application of P and Mn fertilizers did not improve significantly the corn grain yield. Compared to the control, extra fertilizer application increase the grain yield by 1.25,0,86, and 1.27 Mg ha-1 due to applicalion of Mn, P, and combination of both fertilizers, respectively. These findings indicate that either yield was limited by constraints other than P and Mn, or application of P or Mn fertilizers did ... Mostrar Tudo |
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Palavras-Chave: |
Spatial variability. |
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Thesaurus Nal: |
precision agriculture. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/36879/1/Exploring-cause.pdf
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Marc: |
LEADER 02657nam a2200169 a 4500
001 1490766
005 2018-05-25
008 2007 bl uuuu u00u1 u #d
100 1 $aCOELHO, A. M.
245 $aExploring cause and effect relationships of soil fertility on corn yield variability.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 31., 2007, Gramado. Conquistas e desafios da ciência do solo brasileira: [resumos expandidos]. Porto Alegre: UFRGS: SBCS$c2007
300 $c1 CD-ROM.
520 $aIn an experimenl conducted 10 asses lhe potencial causes of corn yield variabilily, the variation of phosphorus (P) and manganese (Mn), accounted for 79% of the variability in grain yield. Based on yield map the experimental field was divided in two general areas of management. One area (a) with grain yield below the average (11.30 Mg ha-1) and another one (b) with grain yield above average. Three treatments were applied 10 the corn: (1) 92 kg of P2O5 ha.-1 banded at 10 cm beside of planls and incorporated inlo lhe soil; (2) Mn applied on the com foliage at rate of 1.1 kg ha.-1 at the four and eight- leaf growth stages and, (3) combination of trealment 1 plus 2. Also, with lhe use of CERES-Maize model we eslimated the corn grain yield in area (a) by simulating two situations: (1) appliction of manure at 25 Mg ha-1 (dry matter basis), plus 100 kg ha-1 de ammonium phosphale al sowing time and 50 kg of N ha-1 applied side-dress as ammonium nitrate; (2) no manure, 100 kg ha-1 de ammonium phosphate at sowing time and 100 kg of N ha-1 applied side-dress as ammonium nitrate. The application of P and Mn fertilizers did not improve significantly the corn grain yield. Compared to the control, extra fertilizer application increase the grain yield by 1.25,0,86, and 1.27 Mg ha-1 due to applicalion of Mn, P, and combination of both fertilizers, respectively. These findings indicate that either yield was limited by constraints other than P and Mn, or application of P or Mn fertilizers did not adequately alleviate the deficiency of these nutrients in eroded soils. Corn grain yields measured in area (a) in 1997, ranged from 8.5 to 11.0 Mg ha-1 and averaged 10.5 Mg ha-1. The grain yield of 10.9 Mg ha-1simulated by CERES-Maize model withoul use of manure, was similar 10 the yield (10.5 Mg ha-1) measured for area (a). With the use of manure, the CERES-Maize model simulated a grain yield of 14.1 Mg ha-1, similar to the high grain yield (13.8 Mg ha-1) measured on the besl area of the field (area b).
650 $aprecision agriculture
653 $aSpatial variability
700 1 $aDORAM, J. W.
700 1 $aSCHEPERS, J. S.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
01/07/2021 |
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Data da última atualização: |
28/03/2022 |
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Autoria: |
BARCELLOS, D.; DAMBROS, V. G.; KONDO, Y. R.; FLÔRES, A. V.; STINGHEN, J. C.; BOTELHO, G. R. |
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Título: |
Influence of fluorescent Pseudomonas on the growth of Mimosa scabrella seedlings. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Pesquisa Florestal Brasileira, Colombo, v. 41, e201902078, 2021. 6 p. |
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ISSN: |
1983-2605 |
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DOI: |
https://doi.org/10.4336/2021.pfb.41e201902078 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT. Bracantiga (Mimosa scabrella Benth) is a native leguminous specie from the south of Brazil, with great potential for commercial use. It can be used to recover degraded areas due to their fast growth, high adaptability and root nodule formation capacity. One alternative to reduce fertilization costs of seedlings production, are the plant growth promoting rhizobacteria. The fluorescent group of Pseudomonas is common at several plant rhizosphere. The objective of this work was to assess the growth stimulus of fluorescent Pseudomonas isolates at bracatinga seedlings. The seeds were inoculated with three bacterial isolates (CBSAL14, CBSAL18 and CBSAL05), genetically identified as Pseudomonas sp. They were previously grown in 50 mL of Luria Bertani medium for 48 h and then the seeds were submerged for 30 min in the suspensions. Subsequently, they were sown in tubes containing sterilized commercial substrate and kept in greenhouse for five months. From 61 days after sowing, seedling height and stem diameter were measured monthly. The CBSAL14 and CBSAL18 isolates promoted promoted increase in growth of seedlings height of inoculated individuals compared to control, suggesting their potential use as plant growth promoters. TÍTULO. Influência de Pseudomonas fluorescentes no desenvolvimento de mudas de Mimosa scabrella. RESUMO. A bracantiga (Mimosa scabrella Benth) é uma leguminosa nativa do sul do Brasil, com grande potencial para uso comercial. Pode ser usada para a recuperação de áreas degradadas, devido ao seu rápido crescimento, alta adaptabilidade e capacidade de formar nódulos. Uma alternativa para reduzir custos de fertilização na produção de mudas, é o uso de rizobactérias promotoras de crescimento de plantas. O grupo fluorescente de Pseudomonas é comum nas rizosferas de diversas espécies de plantas. Neste trabalho, o objetivo foi avaliar o estímulo de isolados de Pseudomonas fluorescentes nas plântulas de bracatinga. As sementes foram inoculadas com três isolados bacterianos (CBSAL14, CBSAL18 e CBSAL05), geneticamente identificados como Pseudomonas sp. Foram, previamente, cultivados em 50 mL de meio Luria Bertani por 48 h, submergindo as sementes, na sequência, por 30 min nas suspensões. Posteriormente, foram semeadas em tubetes contendo substrato comercial esterilizado e mantidas em casa-de-vegetação por cinco meses. A partir dos 61 dias após a semeadura, a altura da muda e o diâmetro do coleto foram mensurados mensalmente. Os isolados CBSAL14 e CBSAL18 promoveram aumento do incremento em altura das plântulas de indivíduos inoculados em relação ao controle, sugerindo seu potencial de uso como promotores do crescimento das plantas. MenosABSTRACT. Bracantiga (Mimosa scabrella Benth) is a native leguminous specie from the south of Brazil, with great potential for commercial use. It can be used to recover degraded areas due to their fast growth, high adaptability and root nodule formation capacity. One alternative to reduce fertilization costs of seedlings production, are the plant growth promoting rhizobacteria. The fluorescent group of Pseudomonas is common at several plant rhizosphere. The objective of this work was to assess the growth stimulus of fluorescent Pseudomonas isolates at bracatinga seedlings. The seeds were inoculated with three bacterial isolates (CBSAL14, CBSAL18 and CBSAL05), genetically identified as Pseudomonas sp. They were previously grown in 50 mL of Luria Bertani medium for 48 h and then the seeds were submerged for 30 min in the suspensions. Subsequently, they were sown in tubes containing sterilized commercial substrate and kept in greenhouse for five months. From 61 days after sowing, seedling height and stem diameter were measured monthly. The CBSAL14 and CBSAL18 isolates promoted promoted increase in growth of seedlings height of inoculated individuals compared to control, suggesting their potential use as plant growth promoters. TÍTULO. Influência de Pseudomonas fluorescentes no desenvolvimento de mudas de Mimosa scabrella. RESUMO. A bracantiga (Mimosa scabrella Benth) é uma leguminosa nativa do sul do Brasil, com grande potencial para uso comercial. Pode ser usada para a recuper... Mostrar Tudo |
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Palavras-Chave: |
Growth; Leguminosas; Rhizobacteria; Rizobactéria. |
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Thesagro: |
Bracatinga; Crescimento; Mimosa Scabrella; Muda. |
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Thesaurus NAL: |
Legumes. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/224224/1/Influence-2078-Texto-do-artigo-21575-1-10-20210520.pdf
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Marc: |
LEADER 03605naa a2200313 a 4500
001 2132715
005 2022-03-28
008 2021 bl uuuu u00u1 u #d
022 $a1983-2605
024 7 $ahttps://doi.org/10.4336/2021.pfb.41e201902078$2DOI
100 1 $aBARCELLOS, D.
245 $aInfluence of fluorescent Pseudomonas on the growth of Mimosa scabrella seedlings.$h[electronic resource]
260 $c2021
520 $aABSTRACT. Bracantiga (Mimosa scabrella Benth) is a native leguminous specie from the south of Brazil, with great potential for commercial use. It can be used to recover degraded areas due to their fast growth, high adaptability and root nodule formation capacity. One alternative to reduce fertilization costs of seedlings production, are the plant growth promoting rhizobacteria. The fluorescent group of Pseudomonas is common at several plant rhizosphere. The objective of this work was to assess the growth stimulus of fluorescent Pseudomonas isolates at bracatinga seedlings. The seeds were inoculated with three bacterial isolates (CBSAL14, CBSAL18 and CBSAL05), genetically identified as Pseudomonas sp. They were previously grown in 50 mL of Luria Bertani medium for 48 h and then the seeds were submerged for 30 min in the suspensions. Subsequently, they were sown in tubes containing sterilized commercial substrate and kept in greenhouse for five months. From 61 days after sowing, seedling height and stem diameter were measured monthly. The CBSAL14 and CBSAL18 isolates promoted promoted increase in growth of seedlings height of inoculated individuals compared to control, suggesting their potential use as plant growth promoters. TÍTULO. Influência de Pseudomonas fluorescentes no desenvolvimento de mudas de Mimosa scabrella. RESUMO. A bracantiga (Mimosa scabrella Benth) é uma leguminosa nativa do sul do Brasil, com grande potencial para uso comercial. Pode ser usada para a recuperação de áreas degradadas, devido ao seu rápido crescimento, alta adaptabilidade e capacidade de formar nódulos. Uma alternativa para reduzir custos de fertilização na produção de mudas, é o uso de rizobactérias promotoras de crescimento de plantas. O grupo fluorescente de Pseudomonas é comum nas rizosferas de diversas espécies de plantas. Neste trabalho, o objetivo foi avaliar o estímulo de isolados de Pseudomonas fluorescentes nas plântulas de bracatinga. As sementes foram inoculadas com três isolados bacterianos (CBSAL14, CBSAL18 e CBSAL05), geneticamente identificados como Pseudomonas sp. Foram, previamente, cultivados em 50 mL de meio Luria Bertani por 48 h, submergindo as sementes, na sequência, por 30 min nas suspensões. Posteriormente, foram semeadas em tubetes contendo substrato comercial esterilizado e mantidas em casa-de-vegetação por cinco meses. A partir dos 61 dias após a semeadura, a altura da muda e o diâmetro do coleto foram mensurados mensalmente. Os isolados CBSAL14 e CBSAL18 promoveram aumento do incremento em altura das plântulas de indivíduos inoculados em relação ao controle, sugerindo seu potencial de uso como promotores do crescimento das plantas.
650 $aLegumes
650 $aBracatinga
650 $aCrescimento
650 $aMimosa Scabrella
650 $aMuda
653 $aGrowth
653 $aLeguminosas
653 $aRhizobacteria
653 $aRizobactéria
700 1 $aDAMBROS, V. G.
700 1 $aKONDO, Y. R.
700 1 $aFLÔRES, A. V.
700 1 $aSTINGHEN, J. C.
700 1 $aBOTELHO, G. R.
773 $tPesquisa Florestal Brasileira, Colombo$gv. 41, e201902078, 2021. 6 p.
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Embrapa Florestas (CNPF) |
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