Nutrient Enrichment
Mostrando 1-12 de 75 artigos, teses e dissertações.
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1. Enrichment, quality, and productivity of soybean seeds with cobalt and molybdenum applications
Resumo: Cobalto (Co) e molibdênio (Mo) são nutrientes indispensáveis para a fixação biológica e assimilação de nitrogênio pela soja. Neste trabalho teve-se como objetivo avaliar o aumento do Co e Mo nas sementes de soja pela aplicação via foliar desses nutrientes na planta mãe. O experimento foi realizado em lavoura de produção de sementes, em
J. Seed Sci.. Publicado em: 01/07/2019
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2. RAINFALL WATER QUALITY UNDER DIFFERENT FOREST STANDS
ABSTRACT The rainfall-forest canopy interaction can impact on the chemical and physical rain-water features and is expected that different forests will have different effects on throughfall rain-water quality parameters. This study aimed (i) to compare chemical and physical rain-water quality variables observed in both gross precipitation and throughfall mea
CERNE. Publicado em: 20/05/2019
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3. MODELING OF PHOSPHORUS LOSSES BY WATER EROSION
ABSTRACT Phosphorus losses in runoff water and eroded sediment may increase the risk of eutrophication. Erosion prediction models can be used to assess and quantify nutrient losses and transport in different soil management scenarios. This study aimed to assess the performance of models to estimate the losses of available phosphorus in eroded sediments and a
Eng. Agríc.. Publicado em: 2018-01
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4. Elevated Atmospheric CO2 and Drought Affect Soil Microbial Community and Functional Diversity Associated with Glycine max
Abstract Under the background of climate change, the increase of atmospheric CO2 and drought frequency have been considered as significant influencers on the soil microbial communities and the yield and quality of crop. In this study, impacts of increased ambient CO2 and drought on soil microbial structure and functional diversity of a Stagnic Anthrosol were
Rev. Bras. Ciênc. Solo. Publicado em: 04/12/2017
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5. High fire temperature changes soil aggregate stability in slash-and-burn agricultural systems
ABSTRACT Fire is a key controlling factor in ecosystem dynamics worldwide, especially, in tropical areas under slash-and-burn agricultural systems. Farmers use fire as a tool to clean the land, and benefit from nutrient enrichment from ash-soil heating. However, fire can cause some detrimental effects on soil systems, such as organic carbon depletion, increa
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-04
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6. Nutrient and Organic Carbon Losses, Enrichment Rate, and Cost of Water Erosion
ABSTRACT Soil erosion from water causes loss of nutrients and organic carbon, enriches the environment outside the erosion site, and results in costs. The no-tillage system generates increased nutrient and C content in the topsoil and, although it controls erosion, it can produce a more enriched runoff than in the conventional tillage system. This study was
Rev. Bras. Ciênc. Solo. Publicado em: 09/03/2017
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7. Considerations regarding the dominance of Cylindrospermopsis raciborskii under low light availability in a low phosphorus lake
ABSTRACTAlthough many studies have shown that the dispersion, increased abundance and dominance of cyanobacteria can be attributed to nutrient enrichment, we discuss features contributing to the dominance of Cylindrospermopsis raciborskii in a shallow, polymictic, subtropical coastal lake with low phosphorus and light limitation (Peri Lake). The presence and
Acta Bot. Bras.. Publicado em: 2015-09
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8. Nutrient enrichment effect on macroinvertebrates in a lowland stream of Argentina
ABSTRACT One of the most important effects derived from the intensive land use is the increase of nutrient concentration in the aquatic systems due to superficial drainage. Besides, the increment of precipitations in South America connected to the global climate change could intensify these anthropic impacts due to the changes in the runoff pattern and a gre
Iheringia, Sér. Zool.. Publicado em: 2015-06
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9. Carbon dioxide-enriched atmosphere enhances biomass accumulation and meristem production in the pioneer shrub Baccharis dracunculifolia (Asteraceae)
The increase in atmospheric CO2 concentration predicted to the end of this century may cause several alterations on plant species development, which shall result in changes in the structure and function of plant communities. The present work aimed to investigate the effects of the increase in atmospheric CO2 concentration on the development of Baccharis drac
Acta Bot. Bras.. Publicado em: 2014-12
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10. A rapid and reliable method for the clonal isolation of Acanthamoeba from environmental samples
Acanthamoeba are abundant in a wide range of environments, and some species are responsible for cutaneous infections, keratitis, and granulomatous amoebic encephalitis (GAE). The conventional detection and isolation of amoeba from clinical and environmental samples involves sampling and culture on non-nutrient Ágar medium. Although efficient, this system re
Brazilian Archives of Biology and Technology. Publicado em: 2012-02
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11. INVESTIGAÇÃODE Salmonella sp. EM PSITTACIFORMES MANTIDOS EM CRIATÓRIOS COMERCIAIS E CONSERVACIONISTAS DA REGIÃO METROPOLITANA DE FORTALEZA-CEARÁ / RESEARCH Salmonella sp. MAINTAINED IN Psittaciformes in commercial houses and conservationists THE METROPOLITAN REGION OF FORTRESS-CEARÁ
Psittaciformes are the most popular pet birds in the world. Direct contact between humans and Psittaciformes is very comprehensive and the analysis of the bacterial flora of these birds is poorly known, and it can be highly pathogenic. Bacterial infections represent a major cause of enteric diseases in poultry, being the Salmonella one of the main agents inv
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/12/2011
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12. Efeitos da tilápia do Nilo, Oreochromis niloticus, sobre a biomassa planctônica e a transparência da água ao longo de um gradiente de enriquecimento por nutrientes
A tilápia do Nilo (Oreochromis niloticus) é um peixe onívoro filtrador que pode ter efeitos negativos sobre a qualidade da água favorecendo o processo de eutrofizção. Esses efeitos negativos dos peixes onívoros filtradores devem ser dependentes do nível de enriquecimento da água por nutrientes. Nós realizamos um experimento em mesocosmos por cinco
Publicado em: 2010