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| Registros recuperados: 106 | |
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| SÃO JOSÉ, J. F. B. de; CHERUBIN, M. R.; VARGAS, L. K.; LISBOA, B. B.; ZANATTA, J. A.; ARAÚJO, E. F.; BAYER, C.. |
| Eucalyptus harvest residues are attractive energy production resources for the forestry industry. However, their removal can have adverse impacts on soil quality and forest productivity, especially in sandy soils. In this study, we assessed the effects of Eucalyptus harvest residue managements with variable intensity on forest productivity and on physical, chemical, and biological indicators of the soil quality. The experiment was conducted in a Quartzipsamment (33 g kg− 1 clay) planted with Eucalyptus saligna in Barra do Ribeiro in southern Brazil. Before the Eucalyptus was planted, residues from the previous rotation were subjected to five different management treatments: (1) FRM, in which all forest residues (bark, branches, leaves, and litter) were... |
| Tipo: Artigo de periódico |
Palavras-chave: Forest residues; Soil health; Eucalipto; Soil organic carbon; Microbial biomass; Soil conservation; Eucalyptus. |
| Ano: 2022 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1148403 |
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| SILVA, K. da; PEPE, K. B. F.; TÚLIO, R. H.; MARCONDES, L. C.; RACHWAL, M. F. G.; ZANATTA, J. A.. |
| Os microrganismos do solo são responsáveis por diversos proces- sos essenciais para a manutenção dos ecossistemas. Dependendo das condições, os solos podem emitir ou absorver óxido nitroso (N2 O) e metano (CH4 ) e reduzir as emissões de dióxido de carbono (CO2 ), (Serrano-Silva et al., 2014), que são gases responsáveis pelo aumento de temperatura global, conhecidos como gases de efeito estufa (GEE). Entre os GEEs, o CO2 é o mais abundante gás na atmosfera, seguido pelo CH4 , no entanto, este último pos- sui potencial de eficiência radiativa 26 vezes maior que o CO2 (Stocker, 2013), sendo responsável por aproximadamen- te 16% do aquecimento atmosférico (Aydin et al., 2010; Serrano-Silva et al., 2014). Fontes naturais de emissão de metano representam 40%,... |
| Tipo: Comunicado Técnico (INFOTECA-E) |
Palavras-chave: Bactéria metanotrófica; Bacteriologia do Solo; Metano. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1125663 |
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| ZANATTA, J. A.; VIEIRA, F. C. B.; BRIEDIS, C.; DIECKOW, J.; BAYER, C.. |
| Management systems to improve soil quality are essential for agricultural and environmental sustainability. We assessed the quality of soil management systems applied to a subtropical Acrisol in terms of the carbon management index (CMI), the stratification ratio for total organic carbon (SR-TOC) and light fraction of organic matter (SR-LF). In addition, we examined their relationship to chemical, physical and biological soil quality indicators, as well as to maize yield. The study was conducted on a long-term experiment (18 years) in southern Brazil involving two different systems [no tillage (NT) and conventional tillage (CT)], two cropping systems [black oat/maize (O/M) and black oat + vetch/maize + cowpea (OV/MC)] and two nitrogen fertilizer rates for... |
| Tipo: Artigo de periódico |
Palavras-chave: Conservation agriculture; No-till; Quality indicator; Agricultura conservativa; Carbono; Cropping systems; Carbon. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1114374 |
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| Registros recuperados: 106 | |
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