Nitrogen Sources
Mostrando 13-24 de 773 artigos, teses e dissertações.
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13. Evaluation of the process conditions for the production of microbial carotenoids by the recently isolated Rhodotorula mucilaginosa URM 7409
Resumo Este estudo teve como objetivo melhorar as condições físicas e nutricionais do processo de produção de carotenoides pela recém-isolada Rhodotorula mucilaginosa, uma levedura basidiomiceta vermelha. A melhoria da bioprodução de carotenoides foi obtida pela técnica de delineamento experimental, alterando as características dos processos [agita
Braz. J. Food Technol.. Publicado em: 27/06/2019
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14. Nutritive value of elephant grass silage added with cottonseed cake in diet for sheep
RESUMO Objetivou-se avaliar o consumo, digestibilidade dos nutrientes e balanço de nitrogênio em ovinos alimentados com rações contendo silagem de capim-elefante (Pennisetum purpureum Schum) contendo 0; 7; 14 e 21% de torta de algodão. Foram utilizados vinte ovinos Morada Nova em delineamento inteiramente casualizado com quatro tratamentos e cinco repet
Rev. Ciênc. Agron.. Publicado em: 2019-06
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15. Ammonia Volatilization from Soil-Applied Organic Fertilizers
ABSTRACT: A reliable quantification of nitrogen (N) losses by ammonia (NH3) volatilization can contribute to identifying optimized strategies of fertilizer management. The objective of this study was to quantify ammonia volatilization from several organic N sources incorporated into or applied onto the soil surface. Two cultivation areas, under snap bean and
Rev. Bras. Ciênc. Solo. Publicado em: 27/05/2019
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16. Trophic dynamics (Dissolved Inorganic Nitrogen-DIN and Dissolved Inorganic Phosphorus-DIP) in tropical urban estuarine systems during periods of high and low river discharge rates
Abstract: This paper focused on the use of the biogeochemical LOICZ (Land Ocean Interactions in the Coastal Zone) to investigate the dynamics of DIN and DIP nutrients among three highly urbanized tropical estuaries (Barra das Jangadas (BJ), Recife (RE) and Timbó (TB)), located in the northeastern region of Brazil. The input data were obtained through in sit
An. Acad. Bras. Ciênc.. Publicado em: 23/05/2019
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17. THERMAL PROFILE OF WOOD SPECIES FROM THE BRAZILIAN SEMI-ARID REGION SUBMITTED TO PYROLYSIS
ABSTRACT The objective of this study was to evaluate the thermal decomposition profile of 10 wood species from the semi-arid region of Brazil using thermogravimetric analysis (TGA) to investigate their potential as biomass energy sources. First, flash carbonization was carried out in a muffle furnace, in which wood samples were heated to a maximum temperatur
CERNE. Publicado em: 20/05/2019
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18. Enhanced Production Of Streptokinase By Chemical Mutagenesis Of Streptococcus agalactiae EBL-20
Abstract Streptokinase (SK) is an enzyme that is used for the treatment of cardiovascular diseases. The current study focused on the enhanced production of SK by inducing mutation in Streptococcus agalactiae EBL-20 and optimization of medium components and culture conditions for the maximum growth of mutant derived strain. S. agalactiae EBL-32 was selected a
Braz. arch. biol. technol.. Publicado em: 13/05/2019
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19. Potencialidade dos pavimentos permeáveis na melhoria da qualidade da água do escoamento superficial: uma revisão
Resumo O escoamento superficial pode acarretar em enchentes urbanas e no aumento da carga de poluentes de corpos d’água. O aumento da carga de poluentes é devido ao fato de o escoamento superficial percorrer sobre pavimentos e calçadas e, dessa forma, transportar os poluentes depositados nesses locais. A percolação do escoamento superficial nos pavim
urbe, Rev. Bras. Gest. Urbana. Publicado em: 21/02/2019
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20. Forage production and mineral composition of cactus intercropped with legumes and fertilized with different sources of manure
RESUMO: Objetivou-se avaliar o potencial produtivo e a composição mineral da palma forrageira IPA-Sertânia (Nopalea cochenillifera Salm Dyck), em cultivo isolado e consorciada com leucena [Leucaena leucocephala (Lam.) de Wit.] ou gliricídia [Gliricidia sepium (Jacq.) Steud.], e adubada com as fontes de esterco bovino, ovino, caprino e cama de frango. O e
Cienc. Rural. Publicado em: 11/02/2019
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21. Availability of betaine present in fine wheat bran in diets for growing pigs
ABSTRACT The objective of this paper was to investigate the availability of betaine present in fine wheat bran (FWB) in diets for growing pigs. We used thirty crossbred intact males, housed individually in metabolic cages and distributed in a randomized block design, with five treatments and six replicates. Blocks consisted of two periods of 15 days. Average
R. Bras. Zootec.. Publicado em: 04/02/2019
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22. Effect of previous soil management on sugarcane response to nitrogen fertilization
ABSTRACT: N Fertilizer recommendations must be improved to optimize N use efficiency (NUE) for bioenergy crops. A study was conducted to test the hypothesis that sites varying in historical usage of by-product differ in soil N-supplying power and sugarcane (Saccharum spp.) responsiveness to N fertilization. Our aim was to quantify soil N availability and N f
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-02
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23. 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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24. 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