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| Oliveira,Dâmiany Pádua; Soares,Bruno Lima; Martins,Fábio Aurélio Dias; Franceschini,Leandro Alex; Cardillo,Bruno Ewerton da Silveira; Rufini,Márcia; Morais,Augusto Ramalho de; Moreira,Fatima Maria de Souza; Andrade,Messias José Bastos de. |
| Abstract: The objective of this work was to evaluate the viability of liquid medium inoculation of Rhizobium etli in the planting furrow and to certify the efficiency of its strain UFLA 02-100 as a potential inoculant for common bean (Phaseolus vulgaris). The treatments consisted of three application rates of liquid inoculant applied in the planting furrows or in common bean seed, besides two controls without inoculation. The inoculant contained 109 cells of Rhizobium etli mL-1. Regardless of the application method, the yield obtained with the inoculation was equivalent to that of N from urea; however, the application in the furrows, at 0.6 L ha-1, is more advantageous due to the operational practicality and reduced costs. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris; Biological N2 fixation; Biotechnology. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000300394 |
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| Chalk,Phillip Michael. |
| Abstract Brazilian scientists have played a pioneering role in developing and applying stable isotope methodologies, in terms of natural abundance and enriched levels, to trace carbon and nutrient flows in terrestrial ecosystems, including natural and agroecosystems. Significant contributions have been made in the areas of biological N2 fixation, carbon dynamics in soil, synthesis and evaluation of labeled fertilizers, and food science. These contributions have originated from several decentralized units of Embrapa, from research institutions, and from federal or state universities. In order to capitalize the existing Brazilian expertise, it is necessary to provide, at an institutional level, analytical facilities for stable isotope research, aiming to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological N2 fixation; Fertilizer use efficiency; Food science; Labeled fertilizer; Soil carbon; Stable isotopes. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000901039 |
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| Castro,Jordana Luísa de; Souza,Mariana Gonçalves; Rufini,Márcia; Guimarães,Amanda Azarias; Rodrigues,Tainara Louzada; Moreira,Fatima Maria de Souza. |
| ABSTRACT Mining is an important economic activity. However, its impact on environment must be accessed, mainly on relevant processes for their sustainability. The objective of this study was to evaluate the diversity and efficiency of symbiotic nitrogen fixing bacterial communities in soils under different types of vegetation in the Quadrilátero Ferrífero: ironstone outcrops, Atlantic Forest, neotropical savanna, and a rehabilitated area revegetated with grass. Suspensions of soil samples collected under each type of vegetation were made in a saline solution to capture rhizobia communities that were then inoculated on cowpea [Vigna unguiculata (L.) Walp.], which was used as a trap plant. The symbiotic efficiency of the communities was evaluated in a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological indicators; Biological N2 fixation; Ironstone outcrops. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100421 |
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| Dubeux Junior,José Carlos Batista; Muir,James P.; Apolinário,Valéria Xavier de Oliveira; Nair,P. K. Ramachandran; Lira,Mario de Andrade; Sollenberger,Lynn E.. |
| ABSTRACT Tree legumes are an underexploited resource in warm-climate silvopastures. Perceived benefits of tree legumes include provisioning (browse/mast, timber, fuel, human food, natural medicines, and ornamentals), regulating (C sequestration, greenhouse gas mitigation, soil erosion control and riparian buffers, shade, windbreaks, and habitat for pollinators), supporting (biological N2-fixation, nutrient cycling, soil fertility and soil health, photosynthesis, and primary productivity), and cultural ecosystem services. Tree legumes, however, have not been assessed to the same extent as herbaceous legumes. Once tree legumes are established, they are often more persistent than most herbaceous legumes. There are limitations for extended research with tree... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological N2 fixation; Ecosystem services; Grassland; Nutrient cycling; Tropical. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000800689 |
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