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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
21/02/2009 |
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Data da última atualização: |
05/05/2010 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CAMPO, R. J.; ARAUJO, R. S.; HUNGRIA, M. |
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Afiliação: |
RUBENS JOSÉ CAMPO, CNPSo; RICARDO SILVA ARAUJO, CNPq-MCT; MARIANGELA HUNGRIA DA CUNHA, CNPSo. |
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Título: |
Molybdenum-enriched soybean seeds enhance N accumulation, seed yield,and seed protein content in Brazil. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Field Crops Research, v. 110, n. 3, p. 219-224, Feb. 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
High soybean yields require large amounts of nitrogen (N), which can be obtainedmainly from symbiotic N2 fixation. However, the efficiency of this biological process can be limited by micronutrient deficiencies, especially of molybdenum (Mo). In Brazil, soybean generally responds positively to fertilization with Mo in soils of low fertility and in fertile soils depleted ofMo due to long-term cropping. The micronutrient can be supplied by seed treatment, however toxicity of Mo sources to Bradyrhizobium strains applied to seed as inoculant has been observed, resulting in bacterial death and reductions in nodulation, N2 fixation and grain yield. Therefore, use of seeds enriched in Mo could be a viable alternative to exterior seed treatment, allowing elite inoculant strains of Bradyrhizobium to sustain high rates of biological N2 fixation. We demonstrated the feasibility of producing Mo-rich seeds of several soybean cultivars, by means of two foliar sprays of 400 g Mo ha_1 each, between the R3 and R5 stages, with aminimum interval of 10 days between sprays. As a result of this method, considerable increases in seed-Mo content were obtained, of as much as 3000%, in comparison to seeds obtained from plants which received no Mo. In field experiments performed in soils with low N content and without any N-fertilizer supply, inoculation of Mo-rich seeds produced plants with increased N and Mo contents in the grain and higher yields of total N and of grain. In most cases, Mo-rich soybean seeds did not require any further application of Mo-fertilizer. MenosHigh soybean yields require large amounts of nitrogen (N), which can be obtainedmainly from symbiotic N2 fixation. However, the efficiency of this biological process can be limited by micronutrient deficiencies, especially of molybdenum (Mo). In Brazil, soybean generally responds positively to fertilization with Mo in soils of low fertility and in fertile soils depleted ofMo due to long-term cropping. The micronutrient can be supplied by seed treatment, however toxicity of Mo sources to Bradyrhizobium strains applied to seed as inoculant has been observed, resulting in bacterial death and reductions in nodulation, N2 fixation and grain yield. Therefore, use of seeds enriched in Mo could be a viable alternative to exterior seed treatment, allowing elite inoculant strains of Bradyrhizobium to sustain high rates of biological N2 fixation. We demonstrated the feasibility of producing Mo-rich seeds of several soybean cultivars, by means of two foliar sprays of 400 g Mo ha_1 each, between the R3 and R5 stages, with aminimum interval of 10 days between sprays. As a result of this method, considerable increases in seed-Mo content were obtained, of as much as 3000%, in comparison to seeds obtained from plants which received no Mo. In field experiments performed in soils with low N content and without any N-fertilizer supply, inoculation of Mo-rich seeds produced plants with increased N and Mo contents in the grain and higher yields of total N and of grain. In most cases, Mo-rich soyb... Mostrar Tudo |
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Palavras-Chave: |
Soybean. |
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Thesagro: |
Soja. |
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Categoria do assunto: |
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URL: |
https://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6T6M-4TSC3Y4-1-1&_cdi=5034&_user=4353287&_orig=browse&_coverDate=02%2F28%2F2009&_sk=998899996&view=c&wchp=dGLbVtz-zSkzk&md5=20760c0eb4b362336386991c2b35988c&ie=/sdarticle.pdf
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Marc: |
LEADER 02054naa a2200169 a 4500
001 1471220
005 2010-05-05
008 2009 bl --- 0-- u #d
100 1 $aCAMPO, R. J.
245 $aMolybdenum-enriched soybean seeds enhance N accumulation, seed yield,and seed protein content in Brazil.
260 $c2009
520 $aHigh soybean yields require large amounts of nitrogen (N), which can be obtainedmainly from symbiotic N2 fixation. However, the efficiency of this biological process can be limited by micronutrient deficiencies, especially of molybdenum (Mo). In Brazil, soybean generally responds positively to fertilization with Mo in soils of low fertility and in fertile soils depleted ofMo due to long-term cropping. The micronutrient can be supplied by seed treatment, however toxicity of Mo sources to Bradyrhizobium strains applied to seed as inoculant has been observed, resulting in bacterial death and reductions in nodulation, N2 fixation and grain yield. Therefore, use of seeds enriched in Mo could be a viable alternative to exterior seed treatment, allowing elite inoculant strains of Bradyrhizobium to sustain high rates of biological N2 fixation. We demonstrated the feasibility of producing Mo-rich seeds of several soybean cultivars, by means of two foliar sprays of 400 g Mo ha_1 each, between the R3 and R5 stages, with aminimum interval of 10 days between sprays. As a result of this method, considerable increases in seed-Mo content were obtained, of as much as 3000%, in comparison to seeds obtained from plants which received no Mo. In field experiments performed in soils with low N content and without any N-fertilizer supply, inoculation of Mo-rich seeds produced plants with increased N and Mo contents in the grain and higher yields of total N and of grain. In most cases, Mo-rich soybean seeds did not require any further application of Mo-fertilizer.
650 $aSoja
653 $aSoybean
700 1 $aARAUJO, R. S.
700 1 $aHUNGRIA, M.
773 $tField Crops Research$gv. 110, n. 3, p. 219-224, Feb. 2009.
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Registro original: |
Embrapa Soja (CNPSO) |
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| Registros recuperados : 418 | |
| 82. |  | HUNGRIA, M.; ARAUJO, R. S.; CAMPO, R. J. Biological nitrogen fixation as a key component of n nutrition for the soybean crop in Brazil. In: WORLD SOYBEAN RESEARCH CONFERENCE, 8., 2009, Beijing. Developing a global soy blueprint for a safe secure and sustainable supply: proceedings. Beijing: Chinese Academy of Agricultural Sciences: Institute of Crop Science, 2009. Oral Presentations. WSRC 2009. 1 CD-ROM. Editado por Lijuan Qiu, Rongxia Guan, Jian Jin, Qijan Song, Shuntang Guo, Wenbin Li, Yuanchao Wang, Tianfu Han, Xiaobing Liu, Deyue Yu, Lianzhou Jiang, Deliang Peng.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| 83. | | HUNGRIA, M.; ARAUJO, R. S.; CAMPO, R. J. Biological nitrogen fixation as a key component of nutrition for the soybean crop in Brazil. In: WORLD SOYBEAN RESEARCH CONFERENCE, 8., 2009, Beijing. Developing a global soy blueprint for a safe secure and sustainable supply: abstracts. Beijing: Chinese Academy of Agricultural Sciences: Institute of Crop Science, 2009. p. 188, ref. O313. WSRC 2009. Editado por Lijuan Qiu, Rongxia Guan, Jian Jin, Qijan Song, Shuntang Guo, Wenbin Li, Yuanchao Wang, Tianfu Han, Xiaobing Liu, Deyue Yu, Lianzhou Jiang, Deliang Peng.| Biblioteca(s): Embrapa Soja. |
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| 92. | | BONDEZAN, A.; CAMPO, R. J.; MIURA, L. M.; HUNGRIA, M. Formulação e avaliação da qualidade de inoculantes líquido composto de corantes e bioprotetor. In: CONGRESSO BRASILEIRO DE SOJA, 5.; MERCOSOJA 2009, Goiânia. Resumos... Londrina: Embrapa Soja, 2009. p. 197, trab. 356. Editado por Adilson de Oliveira Júnior, Odilon Ferreira Saraiva, Clara Beatriz Hoffmann Campo, César de Castro| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 418 | |
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