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Effects of different soil management practices on soil mechanic resistance and ...

Conceição, Luis; Garrido, Miguel; Valero, Constantino; Dias, Susana; Barreiro, P; Freixial, Ricardo

In Alentejo region, Portugal, maize crop field studies were conducted to compare the effect of different tillage systems and no tillage in seed depth placement. Seed depth placement was measured by maize mesocotyl length after crop emergence under conventional tillage (CT), minimum tillage (MT) and no-tillage conditions (NT). In no-tillage condition two work speeds, 4km-1 and 6 km-1, were tested.


Background: Along with obesity’s epidemic growth, came the need for new therapeutic options, tendencially less invasive, associated with lower morbidity and lower cost. Gastroenterolgy plays a promissing role in this field, with emerging new endoluminal procedures and the future perspective for transgastric bariatric treatments. Methods: A literature review was done, selected from computerized medical data base...

Data: 2008   |   Origem: Revista Portuguesa de Cirurgia

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    Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência Programa Operacional da Sociedade do Conhecimento União Europeia