Introducción: La materia orgánica particulada gruesa originada en la vegetación ribereña es la fuente principal de energía en muchas cuencas de cabecera. Sin embargo, la transferencia de dicha materia es alterada por la destrucción de los bosques. Objetivo: Evaluar diferencias en la materia orgáni...
The purpose of this study was to evaluate doses of sulfur applied at topdressing, with and without organic compost supply at planting, in the production, physiological quality and content of macronutrients in lettuce seeds. Ten treatments were evaluated in a 5x2 factorial scheme (five sulfur doses at top...
Potato is a plant that has high nutrient demand during its cycle. Given the concern with the environment, due to the large amount of synthetic mineral fertilizer used in the crops, the objective of this work was to evaluate the efficiency of organomineral fertilizers in the cultivation of potato, cultiva...
Nós criamos massas de ovos dos tricópteros Phylloicus amazonas (n = 2) e Phylloicus elektoros (n = 7) coletadas no campo até a fase
adulta. A mediana do tempo de desenvolvimento do primeiro instar larval ao adulto foi de 229 dias para P. amazonas e 275 dias
para P. elektoros, incluindo o tempo de de...
Ammonium quaternary compounds are widely used in poultry and swine production as disinfectants in the control of pathogens. They act on gram-positive bacteria, gram-negative bacteria, enveloped fungi and viruses. However, in some conditions of pH and presence of organic matter can be inactivated. This st...
Contención de Riesgos Biológicos,
Compuestos de Amonio Cuaternario,
Materia Orgánica,
Aves,
Porcinos,
Bacterias Gramnegativas,
Bacterias Grampositivas,
Salmonella enterica,
Salmonella enteritidis,
Albúmina Sérica Bovina,
Leche,
Desinfectantes,
Técnicas In Vitro
The ruderal babassu palm (Attalea speciosa) is expanding on large areas of degraded Amazon landscapes. Decomposition of leaves and roots is in the center of plant:soil interactions. We evaluated decomposition and nutrient concentrations of leaves and fine roots of babassu in comparison with two exotic re...
Avaliar, por microscopia eletrônica de varredura (MEV), o efeito do uso individual e combinado do etidronato 18% (HEBP) na remoção da smear layer do canal radicular. Métodos: Trinta dentes humanos unirradiculares foram utilizados. As raízes foram preparadas com instrumentos rotatórios do Sistema Pr...
O presente trabalho tem como objetivo estimar o volume de esgoto gerado no RS em Demanda Bioquímica de Oxigênio (DBO kg/dia), e o volume de esgoto (DBO kg/dia) que chega até as estações de tratamento de esgoto ETEs; diagnosticar a eficiência das estações de tratamento de esgotoem relação ao per...
Plantas de Tratamiento de Aguas Residuales,
25576/prevención & control,
Riesgo a la Salud,
Saneamiento Básico,
Cianobacterias/patogenicidad,
Microbiología,
Riesgos Ambientales,
Contaminantes del Agua/análisis,
Promoción de la Salud/métodos,
Técnicas de Investigación,
Exposición a Riesgos Ambientales/prevención & control,
Materia Orgánica/análisis,
Correlación de Datos,
Ambiente
Abstract The occupation of sandy soils in Brazil has occurred with poor adoption of management technology, which has caused its degradation. The recovery of organic matter, particularly when growing annual plants and cover crops, with mulch residue allows the maintenance of the productive potential of th...
Abstract This study assessed the performance of two pilot units, a conventional activated sludge (CAS) and an Integrated Fixed-Film Activated Sludge (IAS), in the treatment of leachate from sanitary landfill combined with domestic sewage, with the aim of removing organic substances. In order to assess th...
