Soil Chemicals Properties
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Hospedabilidade de plantas medicinais aos nematóides M. javanica e M. incognita
The medicinal herb, according to World Health Organization is any plant that has, in one or more of its organs, substances used for therapeutic purposes, or that these substances are the starting point for the synthesis of chemicals and pharmaceuticals, these substances is given the name of active ingredients. Medicinal plants can be attacked by pests, disea
Publicado em: 2010
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2. Sustainability of agricultural model: a case of study. / Sustentabilidade do modelo agrícola: um estudo de caso
Growth and economic development are different concepts. Growth refers to amount of wealth produced by society while economic development refers to quality of life of the people in society. The main goal of the work was characterize the survival of farmers in the rural communities located in the down stream area of Faé watershed. This watershed belongs to ba
Publicado em: 2009
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3. Fitodisponibilidad de Cd en suelo de diferente pH tratado con lodo albañal estimada por método isotópico y extracción química
The Cd phytoavailability in sewage sludge-amended soils of different pHs using the 109Cd L-value isotopic method and Cd extracted by DTPA has been determined. Maize plants (Zea mais L.) were grown under greenhouse conditions in a xanthic ferralsol at different pHs amended with five sewage sludge (SS) rates, and labeled with 74 kBq kg-1 of 109Cd. The SS rates
Química Nova. Publicado em: 2008
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4. Evaluation of chemical dispersants and pre-treatment in the determination of clay in soils of different mineralogy / Avaliação de dispersantes químicos e pré-tratamentos na determinação de argila de solos de mineralogias distintas
The knowledge about the physical properties of soil, including the levels of clay is of paramount importance to the environment and for agriculture. Soil apparently equal may have different behavior because of inherent characteristics, determined by the performance of different procedures for training and the nature of their material trainer. The objectives
Publicado em: 2008
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5. Nitrogen and sulfur for Marandu grass establishment in replacing signal grass under degradation in a low organic matter soil / Nitrogênio e enxofre na implantação do capim-Marandu em substituição ao capim-Braquiária em degradação num solo com baixa matéria orgânica
A deficiência de nitrogênio tem sido apontada como uma das principais causas da degradação de pastagens, mas o suprimento de enxofre também é relevante nessa situação. Objetivou-se avaliar os efeitos das combinações entre doses de nitrogênio e de enxofre em características produtivas, fisiológicas e nutricionais da planta e nos atributos químic
Publicado em: 2006
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6. Um novo método para estudos dinâmicos, in situ, da infiltração da água na região não-saturada do solo. / A new method for dynamic studies, in situ, of water infiltration in the unsaturated zone of soil.
Agriculture is the human activity that most affects the environment. Huge amounts of chemicals are applied on the soil. Pesticides percolation and runoff degrades water resources. Thus, soil hydraulic properties must be known due to their influence on solute transport. The measurement of these properties and the modelling of related parameters are often diff
Publicado em: 2001
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7. STUDY OF THE EFFECT OF INFILTRATION OF CAUSTIC SODA ON THE STRENGTH CHARACTERISTICS OF A LATERITIC SOIL / ESTUDO DA INFLUÊNCIA DA INFILTRAÇÃO DE SODA CÁUSTICA NAS CARACTERÍSTICAS DE RESISTÊNCIA DE UM SOLO LATERÍTICO
This work presents the results of a laboratory study on the effects of infiltration of a caustic liqueur on the stress- strain- strength behavior of a sandy lateritic soil. The experimental program consisted of general characterization,chemicals tests, X-ray diffraction analysis, electron microscopy and triaxial tests using the caustic liqueur at different c
Publicado em: 2001
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8. Bacterial Transcriptional Regulators for Degradation Pathways of Aromatic Compounds
Human activities have resulted in the release and introduction into the environment of a plethora of aromatic chemicals. The interest in discovering how bacteria are dealing with hazardous environmental pollutants has driven a large research community and has resulted in important biochemical, genetic, and physiological knowledge about the degradation capaci
American Society for Microbiology.