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	Provedor de dados Rev. Bras. Ciênc. Solo (2) Ciência e Agrotecnologia (1) Ciência Rural (1) Autor Lira Junior,Mario de Andrade (4) Calheiros,Altanys Silva (2) Fracetto,Felipe José Cury (2) Fracetto,Giselle Gomes Monteiro (2) Barros,Felipe Martins do Rêgo (1) Figueiredo,Márcia do Vale Barreto (1) Galdino,Adeneide Candido (1) Lyra,Maria do Carmo Catanho Pereira (1) Santos,Mércia Virgínia Ferreira (1) Santos,Ítalo Augusto Férrer Melo (1) Siqueira Neto,Marcos (1) Soares,Débora Magalhães (1) Mais... Palavra-chave Calopogonium mucunoides (2) Forage legumes (2) Biological N fixation (1) Biological fixation (1) Biological nitrogen fixation. (1) Caatinga dry forest (1) Efficient rhizobia (1) Green manure (1) Microorganism diversity (1) NifH (1) Ricinoculture (1) Tropical legumes (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Ano 2019 (1) 2017 (1) 2015 (1) 2013 (1) País Brazil (4) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última SYMBIOTIC EFFECTIVENESS AND COMPETITIVENESS OF CALOPO RHIZOBIAL ISOLATES IN AN ARGISSOLO VERMELHO-AMARELO UNDER THREE VEGETATION COVERS IN THE DRY FOREST ZONE OF PERNAMBUCO Rev. Bras. Ciênc. Solo Calheiros,Altanys Silva; Lira Junior,Mario de Andrade; Santos,Mércia Virgínia Ferreira; Lyra,Maria do Carmo Catanho Pereira. Biological N fixation in forage legumes is an important alternative to reduce pasture degradation, and is strongly influenced by the inoculant symbiotic capability. This paper evaluates the effectiveness of Calopo (Calopogonium mucunoides) rhizobial isolated from soil under three vegetation covers of an Argissolo Vermelho-Amarelo of the Dry Forest Zone of Pernambuco. An experiment was conducted evaluating 25 isolates, aside from 5 uninoculated controls with 0; 309; 60; 90 and 120 kg ha-1 N, and a treatment inoculated with the SEMIA 6152 strain. The first cut was performed 45 days after inoculation and a second and third cut after 45-day-intervals. Shoot N content was quantified at all cuts. Shoot dry mass was affected by N rates at all cuts. Shoot dry mass... Tipo: Info:eu-repo/semantics/article Palavras-chave: Calopogonium mucunoides; Biological fixation; Forage legumes. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000200367 Symbiotic capability of calopo rhizobia from an agrisoil with different crops in Pernambuco Rev. Bras. Ciênc. Solo Calheiros,Altanys Silva; Lira Junior,Mario de Andrade; Soares,Débora Magalhães; Figueiredo,Márcia do Vale Barreto. Biological nitrogen fixation by rhizobium-legume symbiosis represents one of the most important nitrogen sources for plants and depends strongly on the symbiotic efficiency of the rhizobium strain. This study evaluated the symbiotic capacity of rhizobial isolates from calopo (CALOPOGONIUM MUCUNOIDES) taken from an agrisoil under BRACHIARIA DECUMBENS pasture, sabiá (MIMOSA CAESALPINIIFOLIA) plantations and Atlantic Forest areas of the Dry Forest Zone of Pernambuco. A total of 1,575 isolates were obtained from 398 groups. A single random isolate of each group was authenticated, in randomized blocks with two replications. Each plant was inoculated with 1 mL of a bacterial broth, containing an estimated population of 10(8) rhizobial cells mL-1. Forty-five days... Tipo: Info:eu-repo/semantics/article Palavras-chave: Calopogonium mucunoides; Biological N fixation; Forage legumes; Tropical legumes. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000400005 Free-living diazotrophs drive castor bean nitrogen input in tropical semiarid soils Ciência Rural Fracetto,Felipe José Cury; Fracetto,Giselle Gomes Monteiro; Barros,Felipe Martins do Rêgo; Lira Junior,Mario de Andrade; Siqueira Neto,Marcos. ABSTRACT: There are few studies of microbial diversity in castor bean soils in tropical semiarid environmental. Castor bean products have been widely used around the world justifying the commercial importance of ricinoculture in Brazil’ northeastern semiarid. There is no fertilization or maintenance of litter on the soils from the present study, so we hypothesized that the free-living diazotrophs microorganisms drive the nitrogen (N) input into these soils. We evaluated the communities’ structure and diversity of diazotrophs in tropical semiarid soils with i-Castor bean 50 years of cultivation intercropping with maize (CB-50); ii-Only Castor bean 10 years of cultivation (CB-10) and iii-soil under Caatinga vegetation (CAA). Nitrogenase enzyme activity was... Tipo: Info:eu-repo/semantics/article Palavras-chave: NifH; Microorganism diversity; Ricinoculture; Caatinga dry forest. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019001200252 New rhizobial strains for velvet bean (Stizolobium aterrimum) evaluated under greenhouse and field conditions Ciência e Agrotecnologia Santos,Ítalo Augusto Férrer Melo; Lira Junior,Mario de Andrade; Galdino,Adeneide Candido; Fracetto,Felipe José Cury; Fracetto,Giselle Gomes Monteiro. ABSTRACT The selection of efficient rhizobia for the inoculation of velvet bean may increase the use of this plant as green manure, maximizing the addition of nitrogen (N) to the crop. This study aimed to select rhizobia that nodulate velvet bean more efficiently than do strains currently recommended and for the potential of rhizobia to compose an inoculant. A greenhouse experiment evaluated 39 strains using non-sterile soil and was followed by a field experiment with the five most effective strains under field conditions on a dystrocohesive Yellow Argisol. Both experiments included non-inoculated and inoculated treatments with currently recommended strains and N-fertilized controls. Nodules, root and shoot dry mass, shoot N concentration and accumulation... Tipo: Info:eu-repo/semantics/article Palavras-chave: Green manure; Efficient rhizobia; Biological nitrogen fixation.. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000400428 Registros recuperados: 4 Primeira ... 1 ... Última

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