Dicyandiamide
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Nitrogen supply to arugula from pig slurry composts in contrasting soils
RESUMO O estudo foi desenvolvido para avaliar o fornecimento de nitrogênio (N) à rúcula através de compostos obtidos por compostagem automatizada de dejetos líquidos de suínos (DLS). Durante a compostagem, xisto retortado (XR) e dicianodiamida (DCD) foram adicionados aos DLS para mitigar as perdas gasosas de N. O estudo foi realizado em casa de vegeta�
Hortic. Bras.. Publicado em: 09/12/2019
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2. Conversion of ammonium to nitrate and abundance of ammonium-oxidizing-microorganism in Tropical soils with nitrification inhibitor
ABSTRACT The use of nitrification inhibitors (NIs; dicyandiamide - DCD) is an alternative to reduce oxidation of ammonium (NH4+-N) to nitrate (NO3–-N) in the soil, reducing NO3–-N losses from fertilization practices. Based on the hypothesis that DCD reduces conversion of NH4+-N to NO3–-N in tropical soils and inhibits ammonia oxidizing microorganisms (
Sci. agric. (Piracicaba, Braz.). Publicado em: 04/11/2019
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3. Nitrous Oxide Emissions in a Wheat/Corn Succession Combining Dairy Slurry and Urea as Nitrogen Sources
ABSTRACT: The impact on nitrous oxide (N2O) emissions caused by combining dairy slurry (DS) and urea to supply crops with nitrogen (N) is still not well characterized. The main objective of this study was to compare the differences between N2O emissions in the cases of exclusive use of urea and the combined use of DS and urea as N sources to no-tillage wheat
Rev. Bras. Ciênc. Solo. Publicado em: 14/05/2018
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4. Correlation between stabilizer consumption and degree of polymerization of thermally upgraded paper aged in insulating natural ester and insulating mineral oil
Abstract Insulating paper holds significant importance in the insulation system of power transformers, and thus, its degradation is the subject of many studies. A successful evaluation of the degradation rate of such paper contributes to reducing downtime and avoiding equipment failure. In this work, samples of thermally upgraded paper were thermally aged in
Polímeros. Publicado em: 04/03/2016
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5. Root extracts of Bracchiaria humidicola andSaccharum spontaneum to increase N use by sugarcane
ABSTRACT Retaining the mineral N in the form of NH4+ in the soil for a lengthy period is desirable for reducing losses. Furthermore, there is evidence that sugarcane prefers NH4+-N in place of NO3−-N. This study aimed firstly, to evaluate the potential of root extracts of Bracchiaria humidicola andSaccharum spontaneum, in contrast with the DCD (Dicyandiami
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-02
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6. Impact of nitrification inhibitor with organic manure and urea on nitrogen dynamics and N2O emission in acid sulphate soil
ABSTRACT The accurate prediction of N transformation is an important requisite for optimizing N use efficiency in cropping systems. An incubation study was conducted to verify the impacts of nitrification inhibitor (NI) with organic manure (OM) and urea on N dynamics and N2O emission in acid sulphate soil. The conducted experiment was two-level factorial wit
Bragantia. Publicado em: 27/11/2015
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7. INIBIDOR DE NITRIFICAÇÃO ADICIONADO AO SOLO COM CAMA DE AVIÁRIO E SUA INFLUÊNCIA NA DINÂMICA DO NITROGÊNIO E DO CARBONO / NITRIFICATION INHIBITOR ADDED TO SOIL WITH POUTRY MANURE INFLUENCING NITROGEN AND CARBON DYNAMICS
Inibidores de nitrificação podem reduzir o potencial de contaminação ambiental de dejetos de animais, relativamente à lixiviação de nitrato (NO3 -) e à emissão de óxido nitroso (N2O). Todavia, essa estratégia não tem sido suficientemente avaliada pela pesquisa, especialmente com a cama de aviário (CA). Por isso, o objetivo do presente trabalho f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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8. STRATEGIES FOR IMPROVING NITROGEN SUPPLY TO CORN AND WHEAT FROM PIG MANURE AND TO REDUCE SOIL NITROUS OXIDE EMISSIONS / ESTRATÉGIAS PARA MELHORAR O FORNECIMENTO DE NITROGÊNIO AO MILHO E AO TRIGO POR DEJETOS DE SUÍNOS E REDUZIR A EMISSÃO DE ÓXIDO NITROSO DO SOLO
The swine manure is a major source of nitrogen (N) to crops, although its inappropriate use can lead to N losses which in return pollute environment and reduces its value as organic fertilizer. The sustainability of pig farming depends on strategies that could improve crops N utilization from pig slurry and mitigate harmful environmental impact caused by its
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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9. DICIANODIAMIDA (DCD) COMO INIBIDOR DA NITRIFICAÇÃO DO NITROGÊNIO AMONIACAL DE DEJETOS LÍQUIDOS DE SUÍNOS NO SOLO / DICYANDIAMIDE (DCD) AS NITRIFICATION INHIBITOR OF AMMONIA NITROGEN OF PIG SLURRY IN SOIL
A inibição da nitrificação do nitrogênio (N) amoniacal dos dejetos de suínos, após sua aplicação no solo, poderá mitigar as perdas de N por desnitrificação e lixiviação de nitrato (NO3 -), com benefícios econômicos e ambientais. Todavia, essa estratégia ainda não foi avaliada pela pesquisa brasileira, o que motivou a realização do present
Publicado em: 2010
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10. Sintese e atividade catalitica de biguanidinas
Biguanides are organic bases that have risen attention after the discovery of the antimalarial activity of Paludrine (1-p-chlorophenil-5-isopropylbiguanide). The most used synthesis route is from substituted dicyandiamide; however, these compounds are not commercially availabe. In this work a new synthetic route starting with carbodiimides to produce two big
Publicado em: 1997