Lime Sulfur
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Effect of Lime Addition to CaSO 4 Oxygen Carrier in Chemical Looping Combustion
Abstract Chemical-looping combustion (CLC), which has the characteristic of greenhouse gas CO2 inherent separation, is a novel combustion technology. In this study, CLC experiments of methane using CaSO4 oxygen carrier with lime addition were carried out in a batched fluidized bed reactor, where the sample was exposed to alternate oxidizing and reducing cond
Braz. J. Chem. Eng.. Publicado em: 2018-01
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2. Development of Synthetic Slag with Marble Waste and Calcium Aluminate Agents for Cast Iron Desulfurization
The aim of this work was to study the use of slags to desulfurize cast iron. It was proposed to use alumina instead of fluorspar. In addition, marble waste was used instead of lime. Simulations applying Thermo-Calc® software were carried out in order to obtain the theoretical phases using thermodynamic data. Then, a comparison between theoretical data and e
Mat. Res.. Publicado em: 13/07/2017
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3. Forms of sulfur in Brazilian Oxisols under no-tillage system / Formas de enxofre em Latossolos sob sistema plantio direto
Soil is a critical component of the global sulfur (S) cycle acting as source and a sink for various S species and mediating changes of S oxidation states. However, very little is known about the identities of these specific organic and inorganic S containing molecules, especially in Brazilian soils under no-tillage (NT) system. Thus, the objectives of this s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
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4. Dinâmica de predação e resposta funcional em Chrysoperla externa (Neuroptera: Chrysopidae) sobre Toxoptera citricida (Hemiptera: Aphididae) aplicada à citricultura orgânica / Dynamics of predation and functional response in Chrysoperla externa (Neuroptera: Chrysopidae) on Toxoptera citricida (Hemiptera: Aphididae) applied to organic citrus
A citricultura orgânica Brasileira tem se destacado no mercado internacional no tocante às exportações de suco e concentrado de laranja, polpa peletizada para alimentação animal e óleos para indústria química e farmacêutica. A calda sulfocálcica vem sendo empregada como produto alternativo para a agricultura orgânica em razão da sua baixa toxici
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/01/2012
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5. Side-effects of pesticides used in the organic system of production on Apis mellifera Linnaeus, 1758
This study aimed to evaluate the effects of pesticides, used in the organic system, on Apis mellifera under laboratory conditions. Four multiple (0.25x, 0.5x, 1x and 2x) concentrations as recommended by they manufacturers of the following products: Rotenat CE®, Pironat®, Biopirol 7M®, Organic neem®, Natuneem® and lime sulfur were tested by topical appli
Brazilian Archives of Biology and Technology. Publicado em: 2012-02
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6. Controle biolÃgico e alternativo da cochonilha (Phenacoccus manihoti Matile-Ferrero) na cultura da mandioca (Manihot esculenta Crantz) / Biological control and alternative mealybug (Phenacoccus manihoti Matile-Ferrero) in cassava crop (Manihot esculenta Crantz)
This study aimed to evaluate the action of entomopathogenic fungi and plant protection products used in alternative agroecological on nymphs of P. manihoti in cassava. The four upper leaves of cassava plants infested with nymphs of the mealybug P. manihoti application of treatments received in the lower surface of leaves on the nymphs, using a spray nozzle a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/02/2010
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7. Calda sulfocálcica em pomares de citros: evolução da resistência em Brevipalpus phoenicis (Acari: Tenuipalpidae) e impacto sobre Iphiseiodes zuluagai (Acari: Phytoseiidae) / Lime sulfur in citrus groves: resistance evolution in Brevipalpus phoenicis (Acari: Tenuipalpidae) and impact on Iphiseiodes zuluagai (Acari: Phytoseiidae)
The use of the lime sulfur as an alternative product for controlling Brevipalpus phoenicis (Geijskes) has intensified in Brazilian citrus groves. The lime sulfur is the only efficient product used to control B. phoenicis and certified by organic producers with an average of 11 sprayings per year. Due to intense use of this product, the major objectives of th
Publicado em: 2010
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8. Controle biolÃgico e alternativo do percevejo de renda (Vatiga manihotae) (Drake) (Hemiptera: Tingidae) na cultura da mandioca (Manihot esculenta Crantz) / Biological and alternative control of the lacebug (Vatiga manihotae) (Drake) (Hemiptera: Tingidae) in cassava (Manihot esculenta Crantz)
Cassava (Manihot esculenta) is an important tropical crop, constituting the main source of energy for more than 500 million people in Africa and South America is a culture that traditionally had a low incidence of insect pests, however, in recent seasons some species have shown a high population, especially among those Vatiga manihotae (Drake) (Hemiptera: Ti
Publicado em: 2010
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9. Incidência de cancro cítrico (Xanthomonas axonopodis pv. citri) em pomares de laranjeiras 'Valencia' com poda sanitária e pulverizações com produtos cúpricos, abamectin e calda sulfocálcica / Incidence of citrus canker (Xanthomonas axonopodis pv. Citri) in 'Valencia' groves after sanitary prunings, copper, abamectin and lime sulfur sprays
O cancro cítrico (Xanthomonas axonopodis pv. citri Vauterin et al.) está presente em praticamente todos os continentes, causando prejuízos, por vezes expressivos à produção de citros. O estudo de medidas de controle assume grande importância, principalmente em áreas onde a doença atingiu o nível endêmico. O objetivo deste trabalho foi estudar form
Publicado em: 2008
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10. Construção e estudo das condições de operação de uma unidade de pirólise para pneumáticos inservíveis
Today the used tire is considered a residue with quite inadequate final disposition as in embankments. It can cause many environmental and human health problems because it can absorb gases and to burst. When it is burned into nature it forms toxicant substances as sulfur dioxide and powder material. An alternative use of the used is as energy source in indus
Publicado em: 2007
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11. Balanço de nitrogênio e enxofre no sistema solo-cana-de-açúcar no ciclo de cana-planta / Nitrogen and sulfur balance in the soil-sugarcane system during the plant cane cycle
This works objective was to evaluate the use and distribution of nitrogen and sulfur added to the soil as fertilizers in the soil-sugarcane system (plant cane), using the stable isotopes 15N and 34S. The study also aimed to evaluate the contribution of nitrogen mineralized from sugar cane crop residues labeled with 15N and incorporated into the soil, in a co
Publicado em: 2007
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12. Qualidade de goiabas ensacadas e manejadas com diferentes produtos fitossanitários, sob manejo orgânico / Quality of guava packed and managed using different phytosanitary products under organic management
Guava fruit culture presents serious phytosanitary problems usually controlled by the intensive use of chemicals, many of which have not been approved for this purpose. The growing and indiscriminate use of agro chemicals has put the health of consumers and farmers at risk, besides causing serious environmental problems. Faced by these facts, consumers have
Publicado em: 2006