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	Provedor de dados Agronomy (2) Biological Sciences (1) Autor Sampaio, Everardo Valadares de Sá Barretto (3) Carrido, Marlon da Silva (2) Menezes, Rômulo Simões Cezar (2) Moura, Rafael Thomaz de Aquino (2) Sousa, Carla da Silva (2) Araújo, Elcida de Lima (1) Dantas, Túlio Vinicius Paes (1) Ribeiro, Adauto de Souza (1) Mais... Palavra-chave Fumigation (2) Gamma irradiation (2) Incubation (2) Agronomia ciência do solo microwave (1) Biomassa microbiana do solo (1) Burning (1) Disturbance (1) Microbial carbon. (1) Microbial carbon. biomassa microbiana do solo (1) Microwave (1) Models (1) Resilience (1) Succession (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2018 (2) 2015 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Comparison of methods to quantify soil microbial biomass carbon Agronomy Moura, Rafael Thomaz de Aquino; Carrido, Marlon da Silva; Sousa, Carla da Silva; Menezes, Rômulo Simões Cezar; Sampaio, Everardo Valadares de Sá Barretto.  Soil microorganism biomass is an important soil quality indicator. The microbial biomass of soil was determined by killing and lysing the soil microbes by fumigation with chloroform, irradiation with gamma rays, or irradiation with microwaves. Four soils with increasing carbon concentrations (5, 10, 15, and 30 g kg-1) were analyzed using four methods: the direct application of chloroform, chloroform fumigation, microwave irradiation, and gamma ray irradiation with radiation doses of 15, 25, 35, 45, and 60 KGy. The fungi and bacteria in the soil were quantified by plate counting. Microwave irradiation and gamma irradiation with doses equal to or above 25 KGy killed all the soil microorganisms, but the chloroform methods did not. The carbon liberation... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agronomia ciência do solo microwave; Gamma irradiation; Fumigation; Incubation; Microbial carbon. biomassa microbiana do solo. Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39451 Comparison of methods to quantify soil microbial biomass carbon Agronomy Moura, Rafael Thomaz de Aquino; Carrido, Marlon da Silva; Sousa, Carla da Silva; Menezes, Rômulo Simões Cezar; Sampaio, Everardo Valadares de Sá Barretto.  Soil microorganism biomass is an important soil quality indicator. The microbial biomass of soil was determined by killing and lysing the soil microbes by fumigation with chloroform, irradiation with gamma rays, or irradiation with microwaves. Four soils with increasing carbon concentrations (5, 10, 15, and 30 g kg-1) were analyzed using four methods: the direct application of chloroform, chloroform fumigation, microwave irradiation, and gamma ray irradiation with radiation doses of 15, 25, 35, 45, and 60 KGy. The fungi and bacteria in the soil were quantified by plate counting. Microwave irradiation and gamma irradiation with doses equal to or above 25 KGy killed all the soil microorganisms, but the chloroform methods did not. The carbon liberation... Tipo: Info:eu-repo/semantics/article Palavras-chave: Microwave; Gamma irradiation; Fumigation; Incubation; Microbial carbon.; Biomassa microbiana do solo. Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39451 Post-fire regeneration of vegetation on sandy oligotrophic soil, in Itabaiana, Sergipe, Brazil Biological Sciences Dantas, Túlio Vinicius Paes; Ribeiro, Adauto de Souza; Sampaio, Everardo Valadares de Sá Barretto; Araújo, Elcida de Lima. Two models of post-disturbance regeneration of vegetation in areas of oligotrophic soils have been proposed for temperate regions. The first model is characterized by rapid recovery of the floristic composition, due to the fire resistance of plants; while in the second model, the fire causes extensive mortality and the recovery occurs by recruitment from the seed bank. Since these models have been rarely tested in tropical oligotrophic environments, we applied them in the analysis of floristic compositions in three areas with different post-fire regeneration times in Sergipe State, Brazil. The regeneration followed the seed bank recruitment model in places of bare ground, with a progressive increase in plant density and changes in the relative abundance... Tipo: Info:eu-repo/semantics/article Palavras-chave: Succession; Disturbance; Burning; Resilience; Models. Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/27587 Registros recuperados: 3 Primeira ... 1 ... Última

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