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| Registros recuperados: 83 | |
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| OLIVEIRA-PAIVA, C. A.; BINI, D.; MARRIEL, I. E.; GOMES, E. A.; SANTOS, F. C. dos; COTA, L. V.; SOUSA, S. M. de; ALVES, V. M. C.; LANA, U. G. de P.; SOUZA, F. F. de. |
| bitstream/item/227071/1/COT-252-BiomaPhos-duvidas-frequentes-e-boas-praticas.pdf |
| Tipo: Comunicado Técnico (INFOTECA-E) |
Palavras-chave: Inoculante; Produtividade; Bactéria; Crescimento; Fixação de Nitrogênio; Soil inoculation; Nitrogen fixation. |
| Ano: 2021 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1135409 |
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| MANZATTO, C. V.; ARAUJO, L. S. de; ASSAD, E. D.; SAMPAIO, F. G.; SOTTA, E. D.; VICENTE, L. E.; PEREIRA, S. E. M.; LOEBMANN, D. G. dos S. W.; VICENTE, A. K.. |
| A publicação apresenta um primeiro estudo efetuado sobre as tecnologias preconizadas pela Plataforma ABC (TECabc) e que teve como objetivos discutir e analisar a lógica produtiva de tais tecnologias e realizar uma estimativa inicial da contribuição do Plano ABC para a mitigação das emissões dos gases de efeito estufa, ressaltando-se as variações e incertezas dos dados disponíveis sobre a adoção das TECabc, a diversidade de sistemas de produção e manejo do solo e a ausência de coeficientes de emissõ es regionalizados. |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Recuperação de pastagem; Fixação biológica de nitrogênio; Gases de efeito estufa; Mitigação; Agricultura Sustentável; Efeito Estufa; Mudança Climática; Agrossilvicultura; Fixação Simbiótica de Nitrogênio; Florestamento; Política Ambiental; Plantio Direto; Greenhouse gas emissions; Sustainable agricultural intensification; Integrated agricultural systems; Nitrogen fixation; Waste treatment; Animal wastes; Environmental policy. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123612 |
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| Lima,Ana Lúcia da Silva; Zanella,Fábio; Schiavianto,Marlene Aparecida; Haddad,Claudia Regina Baptista. |
| Prior to abscission, nutrients are redeployed from leaves and redistributed to other parts of the plant. Data comparing nutrient resorption to soil fertility and leaf life span remains controversial in the literature. We compared nitrogen (N) conservation mechanisms among four legume trees with different leaf life spans (Hymenaea courbaril L. var. stilbocarpa (Hayne) Lee et Lang., Lonchocarpus guilleminianus (Tul.) Malme, Enterolobium contortisiliquum (Vell.) Morong and Peltophorum dubium (Spreng.) Taub.), from a semideciduous tropical forest, remnant of the Atlantic Forest. We hypothesized that these mechanisms differ among the four species and are affected by their leaf life span and by the availability of N, both as a mineral in the soil and, in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leaf life span; Nitrogen fixation; Nitrogen resorption efficiency; Nitrogen resorption proficiency; Nitrogen-use efficiency. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062006000300012 |
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| Li, Chen; Jian, Zhimin; Jia, Guodong; Dang, Haowen; Wang, Jianxin. |
| Marine nitrogen fixation contributes to the budget of biologically available N, thus fuels phytoplankton productivity and carbon cycle through biological pump. Modern N‐fixation rates are proved to be constrained by oceanographic condition and nutrient supply to the surface waters. However, the paleoceanographic reconstruction of N‐fixation and its regulation mechanism remain highly uncertain in many regions. Here we present records of N‐fixation changes in the South China Sea (SCS) over the past 250,000 years reconstructed by compound‐specific nitrogen isotopes of individual amino acids. The δ15N of source amino acids (δ15NSrc), reflecting the δ15N of the substrate nitrate originating from the subsurface water, is distinctly lower during interglacial... |
| Tipo: Text |
Palavras-chave: Compound-specific delta N-15; Upper water structure; Bulk sedimentary delta N-15; Nitrogen fixation; Orbital time scale; South China Sea. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00509/62061/66237.pdf |
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| Fonseca-batista, Debany; Dehairs, Frank; Riou, Virginie; Fripiat, Francois; Elskens, Marc; Deman, Florian; Brion, Natacha; Queroue, Fabien; Bode, Maya; Auel, Holger. |
| Euphotic layer dinitrogen (N-2) fixation and primary production (PP) were measured in the eastern Atlantic Ocean (38 degrees N-21 degrees S) using N-15(2) and C-13 bicarbonate tracer incubations. This region is influenced by Saharan dust deposition and waters with low nitrogen to phosphorus (N/P) ratios originating from the Subantarctic and the Benguela upwelling system. Depth-integrated rates of N-2 fixation in the north (0 degrees N-38 degrees N) ranged from 59 to 370 mu mol N m(-2) d(-1), with the maximal value at 19 degrees N under the influence of the northwest African upwelling. Diazotrophic activity in the south (0 degrees S-21 degrees S), though slightly lower, was surprisingly close to observations in the north, with values ranging from 47 to 119... |
| Tipo: Text |
Palavras-chave: Nitrogen fixation; Atlantic Ocean; Primary production. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00379/49009/49451.pdf |
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| Quaggio,J. A.; Gallo,P. B.; Owino-Gerroh,C.; Abreu,M. F.; Cantarella,H.. |
| Liming acid soils is considered to assure the availability of Mo in crops. Additionally, in peanuts (Arachis hypogaea L.) the positive response to liming is associated to a better supply of Ca+2, Mo for the nitrogenase-complex activity, and other non-nitrogen fixing activities of the crop. This study was thus undertaken to assess the effect of lime, Mo, and the lime-Mo interaction on peanut crop, on an acid Ultisol at the Mococa Experimental Station, Instituto Agronômico, São Paulo State, Brazil, from 1987 to 1990. A randomized complete block design with four replications, in a 4 x 4 factorial arrangement, was used in the study. The factors included four lime rates (0, 2, 4, and 6 t ha-1) broadcast and incorporated into the soil, and Mo (0, 100, 200, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arachis hypogaea; Liming; Molybdenum; Nitrogen fixation. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832004000400008 |
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| Souza,Rocheli de; Ambrosini,Adriana; Passaglia,Luciane M.P.. |
| Abstract Plant-microbe interactions in the rhizosphere are the determinants of plant health, productivity and soil fertility. Plant growth-promoting bacteria (PGPB) are bacteria that can enhance plant growth and protect plants from disease and abiotic stresses through a wide variety of mechanisms; those that establish close associations with plants, such as the endophytes, could be more successful in plant growth promotion. Several important bacterial characteristics, such as biological nitrogen fixation, phosphate solubilization, ACC deaminase activity, and production of siderophores and phytohormones, can be assessed as plant growth promotion (PGP) traits. Bacterial inoculants can contribute to increase agronomic efficiency by reducing production costs... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nitrogen fixation; Siderophore production; Plant-bacteria interaction; Inoculant; Rhizosphere. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000400401 |
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| Registros recuperados: 83 | |
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