Nitrate Sources
Mostrando 1-12 de 201 artigos, teses e dissertações.
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1. Avaliação da concentração e composição inorgânica do material particulado coletado no estado do Rio de Janeiro
Cities urbanization and modernization increase emission sources, contributing to particulate matter (PM) composition heterogeneity and enhance the risk to human health and environment. This paper intends to survey the studies on particulate matter carried out in the state of Rio de Janeiro. The sampling of PM is generally made using Hi-Vol samplers to collec
Quím. Nova. Publicado em: 2021-06
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2. Effect of nitrogen sources on fruit characteristics and seed physiological quality of Physalis angulata L.
RESUMO A escolha da fonte nitrogenada adequada é de suma importância, pois afeta o desenvolvimento da planta e a produção de frutos e sementes. Objetivou-se avaliar a qualidade de frutos e sementes de Physalis angulata obtidos de plantas cultivadas em sistema hidropônico, sob concentrações de nitrato e amônio. Os tratamentos consistiram de quatro pro
Pesqui. Agropecu. Trop.. Publicado em: 18/07/2019
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3. Nitrogen source influences the antioxidative system of soybean plants under hypoxia and re-oxygenation
ABSTRACT: In this work, we compared nitrate-supplied plants (non-nodulated) with non-nitrate-supplied plants (nodulated) under oxygen privation of root system (hypoxia) and re-oxygenation (post-hypoxia; recovery) in order to verify whether N sources affect the antioxidant system during oxidative stress caused by hypoxia and post-hypoxia conditions. Antioxida
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-02
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4. Importance of the Order of Addition of the Alumina Precursor and its Type Into Al-SBA-15 Mesoporous Materials for Use as Water Adsorbents
In the present report, Al-SBA mesoporous materials were investigated for use as water adsorbents. Different precursors for aluminum were investigated: aluminum sulfate and nitrate, boehmite, and aluminum tri-sec-butoxide. Furthermore, three different procedures for addition of the silica and alumina sources were tested. Samples were characterized by nitrogen
Mat. Res.. Publicado em: 10/12/2018
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5. Impact of Nitrate and Ammonium ratio on Nutrition and Growth of two Epiphytic Orchids
Abstract Phalaenopsis and Dendrobium do not grow and flower well with 100% ammonium (NH4-N); and there are detailed studies on the effects of nitrate (NO3-N) and ammonium ratios on the flowering, but no information about accumulation of other nutrients and the effects of ammonium toxicity on orchids. For this reason, two experiments were carried out with orc
An. Acad. Bras. Ciênc.. Publicado em: 18/10/2018
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6. Decolorization of remazol brilliant blue R with laccase from Lentinus crinitus grown in agro-industrial by-products
ABSTRACT Lentinus crinitus is a white-rot fungus that produces laccase, an enzyme used for dye decolorization. Enzyme production depends on cultivation conditions, mainly agro-industrial by-products. We aimed to produce laccase from Lentinus crinitus with agro-industrial by-products for dye decolorization. Culture medium had coffee husk (CH) or citric pulp p
An. Acad. Bras. Ciênc.. Publicado em: 25/06/2018
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7. Copper supply and fruit yield of young Citrus trees: fertiliser sources and application methods
ABSTRACT This study aimed to evaluate the fertiliser sources and application methods of copper (Cu) in citrus trees during the first years of fruit production. Two experiments were set up in an orchard with 3-year-old sweet orange trees, which were applied with three sources of Cu (nitrate, sulfate or EDTA) either via fertigation (Experiment 1) or via foliar
Bragantia. Publicado em: 22/03/2018
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8. Can nearby eutrophic reservoirs sustain a differentiated biodiversity of planktonic microcrustaceans in a tropical semiarid basin?
ABSTRACT This paper aims to compare alpha and beta diversities of planktonic microcrustaceans from three reservoirs located nearby in a tropical semiarid basin. Our hypothesis was that alpha and beta diversities of the community are different, although the ecosystems are located close to each other. We carried out two sampling campaigns: dry and rainy season
An. Acad. Bras. Ciênc.. Publicado em: 2017-12
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9. Nitrogen fertilization in top dressing for wheat crop in succession to soybean under a no-till system
ABSTRACT Agricultural intensification to improve wheat yield has increased the demand for nitrogen fertilizers. This study aimed to investigate the wheat response in succession to soybean due to application of nitrogen rates and sources in top dressing, as well as to determine the N rates of maximum technical yield (MTY) and maximum economic yield (MEY). A f
Bragantia. Publicado em: 15/05/2017
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10. Genome-wide identification, classification and transcriptional analysis of nitrate and ammonium transporters in Coffea
Abstract Nitrogen (N) is quantitatively the main nutrient required by coffee plants, with acquisition mainly by the roots and mostly exported to coffee beans. Nitrate (NO3–) and ammonium (NH4+) are the most important inorganic sources for N uptake. Several N transporters encoded by different gene families mediate the uptake of these compounds. They have an
Genet. Mol. Biol.. Publicado em: 10/04/2017
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11. Cultural conditions on the production of extracellular enzymes by Trichoderma isolates from tobacco rhizosphere
Abstract Twelve isolates of Trichoderma spp. isolated from tobacco rhizosphere were evaluated for their ability to produce chitinase and β-1,3-glucanase extracellular hydrolytic enzymes. Isolates ThJt1 and TvHt2, out of 12 isolates, produced maximum activities of chitinase and β-1,3-glucanase, respectively. In vitro production of chitinase and β-1,3-gluca
Braz. J. Microbiol.. Publicado em: 2016-03
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12. Production and characterization of di-rhamnolipid produced by Pseudomonas aeruginosa TMN
Pseudomonas aeruginosa TMN was used to produce rhamnolipid (RL) from a variety of carbon and nitrogen substrates. The most favorable carbon sources for RL production were glucose and glycerol (both at 40 g/L), giving a RL yield of 0.3 and 0.25 g/L, respectively. Meanwhile, sodium nitrate appeared to be the preferable nitrogen source, resulting in a RL produc
Braz. J. Chem. Eng.. Publicado em: 2014-12