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	Provedor de dados Scientia Agricola (1) Planta Daninha (1) Autor Airoldi,Cláudio (1) Cenciani,Karina (1) Critter,Silvana Auxiliadora Missola (1) Freitas,Sueli dos Santos (1) GAJIC-UMILJENDIC,J. (1) RADIVOJEVIC,Lj. (1) SARIC-KRSMANOVIC,M. (1) ÐUROVIC-PEJCEV,R. (1) ŠANTRIC,Lj. (1) Mais... Palavra-chave Biomass carbon (2) Dehydrogenase (1) Enzymes (1) Herbicides (1) Loam sand (1) Microcalorimetry (1) Organic materials (1) Soil microorganisms (1) Urease (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (1) 2008 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última The Effects of Nicosulfuron and Glyphosate on Microbial Activity of Different Soils Planta Daninha ŠANTRIC,Lj.; RADIVOJEVIC,Lj.; GAJIC-UMILJENDIC,J.; SARIC-KRSMANOVIC,M.; ÐUROVIC-PEJCEV,R.. ABSTRACT: The effects of the nicosulfuron and glyphosate herbicides on microbial activity in two soils with different physical and chemical properties (loam and sand) were investigated. Nicosulfuron was applied at the rates of 0.3, 0.6, 3.0 and 30.0 mg kg-1 soil and glyphosate at 32.6, 65.2, 326.0 and 3260.0 mg kg-1 soil in the laboratory. Changes in dehydrogenase and urease activity, as well as in microbial biomass carbon, were examined. Samples for the analysis were collected at 3, 7, 14, 30 and 45 days after herbicide application. The results showed that the effects of nicosulfuron and glyphosate depended on treatment rate, duration of activity, test parameters and soil types. In general, application of the herbicides significantly increased the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Herbicides; Loam sand; Dehydrogenase; Urease; Biomass carbon. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100301 Microbial enzymatic activity and thermal effect in a tropical soil treated with organic materials Scientia Agricola Cenciani,Karina; Freitas,Sueli dos Santos; Critter,Silvana Auxiliadora Missola; Airoldi,Cláudio. Bacteria and fungi are the most active decomposers of organic materials in soil. They directly affect plant nutrient availability, and chemical and physical properties of soils. This investigation aimed at quantifying the effect of several organic materials on microbial activity of a Rhodic Eutrudox. Soil samples were incubated over a period of 91 days with the following organic materials: cattle manure (CM), earthworm humus (HM), and city sewage sludge from Barueri (BA) and Franca (FR). The activities of cellulase, protease and urease enzymes, the soil microbial carbon content (by fumigation-extraction method) and the exothermal effect were evaluated. Experimental design was randomized and arranged as factorial scheme five treatments x seven samplings... Tipo: Info:eu-repo/semantics/article Palavras-chave: Enzymes; Biomass carbon; Organic materials; Soil microorganisms; Microcalorimetry. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000600016 Registros recuperados: 2 Primeira ... 1 ... Última

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