Subsoil
Mostrando 13-24 de 52 artigos, teses e dissertações.
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13. Uso do gesso agrícola nos solos do cerrado.
ABSTRACT: The Cerrdao soils show deficience of calcium and toxicity of aluminum inthe subsurface, what impedes the growth of the roots under the the rapidleaching of calcium and sulface into the subsurface results in the decrease of these problems and therefore increases the growth of the roots. results from field experiments with annual and perennial crops
Planaltina. Publicado em: 2011
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14. Monitoramento geotécnico da obra de ampliação dos molhes do Rio Grande, Brasil / Geotechnical monitoring of the breakwaters enlargement work from Rio Grande, Brazil
O presente trabalho apresenta um estudo das condições geotécnicas e do monitoramento da obra de ampliação dos molhes, proteção da entrada do canal de navegação do Porto de Rio Grande-RS/ Brasil, assente em solos moles. Atenção é dada a problemas associados à capacidade de carga e recalque das fundações. Investigações indicaram que o solo de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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15. Gesso agrícola na produção de milho e soja em solo de alta fertilidade e baixa acidez em subsuperfície em plantio direto
There are doubts about the conditions in which a favorable effect of the application of gypsum on the yield of grain crops can be expected. In order to evaluate the influence of gypsum application in the soil chemical attributes, in mineral nutrition of maize (Zea mays L.) and soybean (Glycine max L. Merrill) yield in no-till system, an experiment was carrie
Publicado em: 2009
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16. Jet Grouting (sistema monofluido): um método teórico simplificado para a previsão do diâmetro das colunas. / Jet Grouting (single fluid system): a theoretical simplificated method for the prediction of column diameter.
Jet grouting is one of the most popular ground improvement techniques all over the world. The method is based on high-speed grouting of water-cement mixtures and/or other fluids (air, water) into the subsoil. The fluids are injected through small diameter nozzles placed on a grout pipe, which is continuously rotated at a constant rate and slowly raised towar
Publicado em: 2009
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17. Soil fauna, arbuscular mycorrhizal fungi and diazotrophic bacteria in Areas of Mining of Bauxite in the Northwest Pará revegetated with palm oil. / Fauna do Solo, Fungos Micorrízicos Arbusculares e Bactérias Diazotróficas em Áreas de Mineração de Bauxita no Noroeste do Pará Revegetadas com Dendê.
The Mining is considered the activity can cause a great impact in the environment, involving the vegetation and subsoil layers remove. After the finish of mineral sources, mandatorily these areas require recovery measures. This study aimed to evaluate the initial establishment of three genotypes of palm oil: C2501, C2301 and C2528, indicated by Embrapa Amaz�
Publicado em: 2009
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18. ESTUDO LABORATORIAL DE MISTURAS DE FOSFOGESSO, SOLO TROPICAL E CAL PARA FINS DE PAVIMENTAÇÃO / Laboratory study of mixtures of gypsum, lime and tropical soil for paviment
The phosphogypsum, subproduct of the manufacture of the phosphoric acid, became the objective of studies, due that it requires the availability of large areas to be stored. The disposal this waste increases the cost of generating company and can even cause a series of environmental problems. In this context, It has been arisen the interest to study the appli
Publicado em: 2009
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19. Laboratory study of mixtures of gypsum, lime and tropical soil for paviment / ESTUDO LABORATORIAL DE MISTURAS DE FOSFOGESSO, SOLO TROPICAL E CAL PARA FINS DE PAVIMENTAÇÃO
The phosphogypsum, subproduct of the manufacture of the phosphoric acid, became the objective of studies, due that it requires the availability of large areas to be stored. The disposal this waste increases the cost of generating company and can even cause a series of environmental problems. In this context, It has been arisen the interest to study the appli
Publicado em: 2009
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20. CompensaÃÃo financeira pela exploraÃÃo de recursos minerais - CFEM: uma anÃlise de sua contribuiÃÃo para o desenvolvimento dos principais municÃpios mineradores de Minas Gerais / Financial compensation for the exploitation of mineral resources - CFEM: an analysis of their contribution to the development of major mining towns of Minas Gerais
The financial compensations established by the Constitution of 1988 to provide states, the Federal District, municipalities, and also to direct the authorities of the Union, participation in the result of exploitation of oil or natural gas, water and other mineral resources in their territory. In the case of mining, the Union, as owner of the subsoil, is ent
Publicado em: 2009
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21. Adubação de mudas de baru (Dipteryx alata Vog.), em viveiro / Fertilization of baru seedlings (Dipteryx alata vog.), in nursery
Producing seedlings of good quality is an important step in the process of planting forest species. Addition of lime and fertilizers contribute in obtaining good quality seedlings, however, information is limited on fertilization and nutrition of native species of savannah. The objective of this study was to evaluate growth response of baru seedlings (Dipter
Publicado em: 2008
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22. ATRIBUTOS QUÍMICOS DE UM LATOSSOLO E OMPORTAMENTO DO TRIGO E DA SOJA NO SISTEMA PLANTIO DIRETO INFLUENCIADOS PELA APLICAÇÃO E REAPLICAÇÃO DE GESSO AGRÍCOLA PONTA GROSSA PR
Gypsum application provides chemical changes on soil that can improve crop yield. This study was carried out to investigate the gypsum application and reapplication effects on soil chemical attributes, mineral nutrition and wheat and soybean grain yields under a no-till system. A field experiment was established in 1998 on a dystrophic clayey Rhodic Hapludox
Publicado em: 2008
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23. CHANGES IN CHEMICAL SOIL ATTRIBUTES AND NIAGARA ROSADA GRAPE RESPONSE TO GYPSUM APPLICATION / ALTERAÇÕES QUÍMICAS DO SOLO E RESPOSTA DA VIDEIRA NIAGARA ROSADA À APLICAÇÃO DE GESSO AGRÍCOLA PONTA GROSSA - PR
Gypsum applied on the soil surface reduces subsoil Al3+ toxicity and increases the Ca2+ and S-SO42- levels, promoting better development of plant roots. Gains in productivity has observed with the use of gypsum in annual and perennial crops, but lacking studies regarding to gypsum application on grapevines. The aim of this study was to evaluate the effect of
Publicado em: 2008
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24. Ensaios dilatométricos - DMT em solos de Santa Catarina: estudo comparativo com CPT e SPT
The world-wide demand for the accomplishment of geotechnical in situ tests is increasing. With th rigorously indicated by the designers for a subsoil identification. The testing method Marchetti Dilatometer (DMT) has being widely used in the world, with different purposes. In this pioneering work with the DMT in Santa Catarina, comparisons between (Standard
Publicado em: 2008