Results 41 to 50 of about 266,937 (211)
Mathematical models for soil erosion prediction are of unquestionable validity for planning the use of agricultural soils. The Universal Soil Loss Equation (USLE) is an example of such models and estimates the expected annual mean losses of soil in a ...
D. Moreti +3 more
semanticscholar +1 more source
O efeito estufa é um mecanismo natural de aquecimento da atmosfera responsável por manter a temperatura média do planeta em níveis adequados para a vida.
Tancio Gutier Ailan Costa +6 more
semanticscholar +1 more source
Lack of Compliance in Gillnet Fisheries Regulations Increases Risk to a Vulnerable Species
ABSTRACT This article presents an analysis of regulatory compliance in a Brazilian gillnet fishery, based on Vessel Monitoring System (VMS) tracking data. Satellite transmissions records, interpreted as proxies for gillnet haulings events, were analyzed and classified using a neural network to assess the level of compliance of the gillnet fleet.
Rodrigo Claudino dos Santos +3 more
wiley +1 more source
II Curso sobre a biologia do solo na agricultura. [PDF]
Nitogênio. Fixação de nitrogênio atmosférico na simbiose Rhizobium- leguminosas. Nodulação das leguminosas. Fatores do solo. Fatores climáticos. Fixação de nitrogênio em gramíneas. Microrganismos do solo e aproveitamento de fósforo pelas plantas. O papel
ALMEIDA, D. L. de +4 more
core +1 more source
Abstract Understanding complex migration patterns, including drivers of partial migration and habitat use, is challenging but essential for conservation, as it determines a species' adaptative capacity in the face of environmental change and anthropogenic threats.
Alexandre Peressin +6 more
wiley +1 more source
Perdas de solo e água em períodos de anomalias climáticas: "El Niño" e "La Niña" no sul do Brasil
O Sul do Brasil tem seu clima influenciado por anomalias climáticas denominadas "El Niño" e "La Niña". Durante o "El Niño", verifica-se precipitação pluvial em volume superior ao normal.
T. J. C. Amado +2 more
doaj +1 more source
Abstract Introduction The fragmentation of the Atlantic Forest has caused severe biodiversity loss. In Paraná State, more than 96% of the original vegetation, predominantly semideciduous seasonal forest, has been degraded. Ecological restoration is a key strategy to reverse this scenario, aiming to recover environmental conditions equivalent to the ...
Julia Sebben +4 more
wiley +1 more source
- The knowledge of temperature from the agronomic viewpoint is important for the growth and development of plants as well as for agricultural production.
Rita de Cássia Fraga Damé +4 more
doaj
ABSTRACT Humpback whales (Megaptera novaeangliae) from breeding stock A migrate annually between Antarctic feeding grounds (~65° S) and Brazilian breeding areas (~17° S). Traditionally considered to fast during migration, recent feeding observations and increased strandings along southeastern Brazil (~23° S) raise questions about possible shifts in ...
Daniel Fonseca Zappa +8 more
wiley +1 more source
Informações técnicas para a cultura de trigo na região do Brasil Central: safras 2005 e 2006. [PDF]
Planejamento da lavoura; Região tritícola do Brasil Central; Cultivares; Qualidade industrial; Época de semeadura; Práticas culturais; Manejo e conservação de solo; Calagem e adubação; Irrigação; Doenças; Controle de pragas.bitstream/CNPAF/22998/1 ...
REUNIÃO DA COMISSÃO CENTRO BRASILEIRA DE PESQUISA DE TRIGO, 13., 2004, Goiânia.
core

