Biofertilizer
Mostrando 49-57 de 57 artigos, teses e dissertações.
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49. An analysis of energetic balance of a biogasproducing System in a swine farm: implementation of a computational device / Análise de balanço energético de sistema de produção de biogás em granja de suínos: implementação de aplicativo computacional
The development of swine breeding made evident the need for greater attention to the issue of treatment and destination of swine wastes. Among the alternatives for environmental sanitation, the most advantageous one shows to be the biodigesters, since they add value to the process by means of the by-products generated: biogas, mainly made out of methane and
Publicado em: 2009
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50. Produção de biogás, caracterização e aproveitamento agrícola do biofertilizante obtido na digestão da manipueira / Biogas production, characterization and agricultural use of the biofertilizer obtained in the cassava digestion
During the cassava roots processing, large quantities of waste are generated, among which stands out the manipueira, an effluent that has high polluting load, but on the other hand can be used as fertilizer and energy source. In this context, this study aimed to examine the anaerobic digestion of manipueira process, seeking to quantify the biogas produced it
Publicado em: 2008
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51. Inseticidas alternativos no controle de moscas sinantrópicas. / Alternative insecticides in the control of sinantropic flies.
The flies Lucilia cuprina, Chrysomya megacephala, Cochliomyia hominivorax e Musca domestica, which produce myiasis and carry pathogenic microorganisms, cause large damage to the cattle-breeding. With the aim to enlarge the options about insecticides less aggressive for the environment was investigated, under laboratory and in field conditions, several concen
Publicado em: 2008
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52. Uso de biofertilizantes de rochas com enxofre e Inoculado com acidithiobacillus em Argissolo Acinzentado do Vale do São Francisco cultivado com melão.
The production of biofertilizers from rocks is a practical process that may reduce the energy consumption and promote nutrients availability for plant growth. Nutrient content of P and K biofertilizers varied according to the methodology and the used material. Presently biofertilizers are known as fertilizers that are produced using different organic by-prod
Publicado em: 2006
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53. Composto orgÃnico e biofertilizante na nutriÃÃo do cafeeiro em formaÃÃo no sistema orgÃnico / Organic compound and bio-fertilizer in organic system coffee crop formation
A agricultura orgÃnica à uma tendÃncia mundial, motivada por aspectos como reciclagem de biomassa, sustentabilidade da agricultura e conservaÃÃo de recursos naturais. Hà demanda de mercado para todos os produtos agrÃcolas,dentre eles o cafÃ. PorÃm, a pesquisa cientÃfica nessa Ãrea à recente e necessÃria em Ãreas fundamentais, como a adubaÃÃo
Publicado em: 2004
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54. Cultivo orgânico de melão: aplicação de esterco e de biofertilizantes e substâncias húmicas via fertirrigação. / Organic melon crop: manure and biofertilizers and humic substances applied through fertigation.
O presente trabalho teve por objetivo estudar a resposta da cultura de melão conduzida em sistema orgânico a diferentes doses de substâncias húmicas extraídas de leonardita e esterco. Os tratamentos foram quatro doses de substâncias húmicas (0, 5, 10 e 20 mg.L-1 de solo) e esterco em combinação com dois biofertilizantes mais dois tratamentos adicion
Publicado em: 2004
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55. Biofertilizer action in the Brevipalpus phoenicis bioecology. / Ação de biofertilizantes líquidos sobre a bioecologia do ácaro Brevipalpus phoenicis.
This study was conducted to evaluate interactions between host plants and the effect of biofertilizers on Brevipalpits phoeiiicis (Geijskes) bioecology. The residual and systemic effects of biofertilizer mjxtures sprayed on Canavalia ensiformis (L.) DC. plants on the bioecology parameters were firstly evaluated. For the residual effect bioassay the following
Publicado em: 2002
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56. Identification and Characteristics of Actinomycetes Useful for Semicontinuous Treatment of Domestic Animal Feces
Selected strains of actinomycetes useful for practicing semicontinuous treatment of swine and poultry feces were identified as Streptomyces antibioticus S-4, S. puniceus N-50-2, S. nigrifaciens N-9-3, Thermoactinomyces vulgaris HIR-60, and Thermomonospora viridis HIR-50. These five obligately aerobic strains grew preferably on nonsterilized fresh swine feces
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57. Nitrogen-Fixing Pseudomonads Isolated from Roots of Plants Grown in the Canadian High Arctic
Root-associated bacteria capable of reducing acetylene to ethylene (biological nitrogen fixation) were isolated from various native plants grown in the Canadian High Arctic. All the strains belonged to the genus Pseudomonas but varied in several physiological characteristics. The rates of acetylene reduction at 14 or 20°C were higher than at 25 or 9°C. Six