Soil and plant responses to pyrogenic organic matter: carbon stability and symbiotic patterns.

• Ano de defesa: 2014
• Autor(a) principal: SAGRILO, E.
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: eng
• Palavras-chave em Português: Matéria orgânica do solo; Alterações do solo; Sequestro de carbono no solo; Micorrizas arbusculares vesiculares; Soil carbon sequestration; Vesicular arbuscular mycorrhizas; Fertilidade do Solo; soil organic matter; soil amendments; soil fertility
• Link de acesso: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1004996

Soil amendment with pyrogenic organic matter (PyOM) can sequester carbon, increase mutualistic root symbioses with arbuscular mycorrhizal fungi and nitrogen-fixing rhizobia, and hence improve crop yield. However, there is still a gap in our knowledge about the effects of PyOM over longer temporal scales, especially in field experiments that last longer than one cropping cycle. This thesis aims to study interactions between PyOM and soil organic carbon (SOC) and symbiotic patterns in soybean (Glycine max) under tropical field conditions in a sandy ferralsol in northeast Brazil.