Results 1 to 10 of about 11,845 (190)
Defluorination of Sodium Fluoroacetate by Bacteria from Soil and Plants in Brazil
The Scientific World Journal, 2012 The aim of this work was to isolate and identify bacteria able to degrade sodium fluoroacetate from soil and plant samples collected in areas where the fluoroacetate-containing plants Mascagnia rigida and Palicourea aenofusca are found.
Expedito K. A. Camboim +7 more
doaj +2 more sources
Fisheries management influences phytoplankton biomass of Amazonian floodplain lakes
Journal of Applied Ecology, Volume 58, Issue 4, Page 731-743, April 2021., 2021 Tropical freshwaters fisheries typically assume that fish biomass is controlled by bottom‐up mechanisms, so that overexploitation of large predators would not affect overall ecosystem productivity. Our results, however, show that top‐down forces are important drivers of primary productivity in tropical lakes, above and beyond the effects of bottom‐up ...
João Vitor Campos‐Silva +6 more
wiley +1 more source
Frugivory underpins the nitrogen cycle
Functional Ecology, Volume 35, Issue 2, Page 357-368, February 2021., 2021 A free Plain Language Summary can be found within the Supporting Information of this article. Abstract Tropical rainforests are populated by large frugivores that feed upon fruit‐producing woody species, yet their role in regulating the cycle of globally important biogeochemical elements such as nitrogen is still unknown.
Nacho Villar +7 more
wiley +1 more source
IRRIGAÇÃO DA MAMONA (RICINUS COMMUNIS L.) USANDO ESGOTO DOMÉSTICO TRATADO E DIFERENTES DOSES DE NITROGÊNIO E POTÁSSIO [PDF]
Revista DAE, 2008 Avaliou-se a produtividade da mamona irrigada com esgoto doméstico tratado e com água, usando diferentes doses de nitrogênio e potássio. Foram utilizados oito tratamentos, variando-se os teores de nitrogênio e potássio, e obtendo-se as produtividades ...
Suetônio Mota +4 more
doaj +1 more source
Uso de diferentes fontes de nitrogênio na cultura da soja
Revista Thema, 2017 O nitrogênio é um nutriente requerido em quantidade pela da soja, pois é responsável pelo crescimento da cultura e produção de novas células e tecidos.
Evelin Cristina Marcon +4 more
doaj +3 more sources
Limited biomass recovery from gold mining in Amazonian forests
Journal of Applied Ecology, Volume 57, Issue 9, Page 1730-1740, September 2020., 2020 To achieve large‐scale restoration targets, Guyana and other Amazonian countries will be challenged to remediate previously mined lands. The recovery process is highly dependent on nitrogen availability rather than mercury contamination, affecting woody biomass regrowth.
Michelle Kalamandeen +14 more
wiley +1 more source
Nitrogênio na água do solo do ecossistema Campina Amazônica () [PDF]
Acta Amazonica, 1975 Resumo As principais fontes de nitrogênio na água do solo do ecossistema Campina Amazônica são: o material em decomposição (litter), chuva, água de lavagem da floresta e produtos do metabolismo de microrganismos.
Antonio dos Santos +1 more
doaj +1 more source
Functional Ecology, Volume 34, Issue 2, Page 442-457, February 2020., 2020 A free Plain Language Summary can be found within the Supporting Information of this article. Abstract Plant growth on harsh substrates (habitat specialization) requires specific traits to cope with stressful conditions. We tested whether traits related to nutrient acquisition (root colonization by fungal symbionts, and plant morphological and ...
Anna Abrahão +8 more
wiley +1 more source
Acta Scientiarum: Animal Sciences, 2008 O presente trabalho foi conduzido no Iapar-Paranavaí, Estado do Paraná e objetivou avaliar o efeito da adubação nitrogenada no acesso BRA-006998, durante o período de 15/10/1998 a 03/05/1999.
Simony Marta Bernardo Lugão +4 more
doaj +1 more source
Ciência Rural, 2014 Objetivou-se com esta pesquisa descrever o potencial de retenção de nitrogênio por duas técnicas: abate comparativo e balanço de nitrogênio. Também se objetivou comparar os modelos ajustados para cada técnica e estimar as exigências de mantença para ...
Edney Pereira da Silva +5 more
doaj +1 more source