Ecological Block
Mostrando 1-12 de 16 artigos, teses e dissertações.
-
1. Controlled-Release Fertilizer on Growth of Melanoxylon brauna Schott Seedlings
ABSTRACT Melanoxylon brauna is a tree species native to the Atlantic Forest of high ecological and economic value. The objective of this study was to evaluate the growth and nutritional status of seedlings of two Melanoxylon brauna cultivars grown in substrate with different controlled-release fertilizer doses (CRF). The experiment was arranged in a randomiz
Floresta Ambient.. Publicado em: 05/09/2019
-
2. Litter as an Ecological Indicator of Forest Restoration Processes in a Dense Ombrophylous Lowland Forest
ABSTRACT The objective of the present study was to evaluate the influence of spacing, species richness, and sampling time on accumulated litter in forest restoration areas in the state of Espírito Santo, Brazil. The experiment was conducted under a randomized complete block design, in a subdivided plot scheme. Six treatments were evaluated, consisting of a
Floresta Ambient.. Publicado em: 05/09/2019
-
3. Nutritional deficiency symptoms of young ‘cedro doce’ plants grown under macronutrient omission
RESUMO O cedro doce [Pochota fendleri (Seem) Alverson & Duarte] é uma espécie florestal nativa da Amazônia e com expressiva importância ecológica e econômica. Conhecer as exigências nutricionais da espécie permite cultivar o cedro doce com práticas de adubação mais eficientes desde a sua fase de muda. Sendo assim, o objetivo desta pesquisa foi ava
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-04
-
4. Despesas municipais em atenção primária à saúde no Rio Grande do Sul, Brasil: um estudo ecológico
O objetivo do estudo é explorar a associação entre componentes do Piso de Atenção Básica (PAB) fixo e variável, fatores sociodemográficos e perfil epidemiológico com as despesas municipais em atenção primária à saúde no Rio Grande do Sul, Brasil. Foi realizado estudo ecológico com 496 municípios do Rio Grande do Sul. A variável despesa médi
Cad. Saúde Pública. Publicado em: 07/01/2019
-
5. Agronomic and Economic Efficiency of Common-Bean Inoculation with Rhizobia and Mineral Nitrogen Fertilization
ABSTRACT Management of biological nitrogen fixation in common bean still requires improvement. The objective of this study was to verify the compatibility of nitrogen fertilization with biological N2 fixation to increase common bean yield and profitability. Four field experiments were performed in four municipalities of Minas Gerais, Brazil, during the 2009
Rev. Bras. Ciênc. Solo. Publicado em: 15/08/2016
-
6. RECOMPOSIÇÃO VEGETAL UTILIZANDO A REGENERAÇÃO ARTIFICIAL, COM E SEM IRRIGAÇÃO, EM ÁREA CILIAR DO ALTO SERTÃO SERGIPANO. / RECOMPOSITION PLANT USING ARTIFICIAL REGENERATION, WITH AND WITHOUT IRRIGATION IN THE AREA CILIARY HIGH SERTÃO SERGIPE.
Although there are several fragments of vegetation in Semiarid, a lack of techniques for its recovery is observed. Most of the studies about degradation is based on the identification of the locations and degrees of desertification, and recovery practices are few, and when done, they only aim economic aspects, leaving the ecological in second plan. In this c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/03/2012
-
7. Crop rotation Scheduling - modeling and solution methodolies / Programação de rotação de culturas - modelos e métodos de solução
Over the last decades, various proposals for techniques and processes to increase agricultural sustainability have been put forward. These proposals bring new planning models in which technical and ecological production aspects must be considered, as well as the access of small farmers to the consumer market. In this type of agricultural production planning,
Publicado em: 2009
-
8. Management efficiency to control two invasive grasses in cerrado fragments, in São Paulo State / Eficiência do manejo no controle de duas espécies de gramíneas invasoras em Cerrados Paulistas
Several African grasses introduced in the Brazilian savannas for cattle feeding became invasive, and now they severely threaten the native biodiversity. It is, therefore, fundamental to look for effective methods to control them. The objective of this study was to evaluate the efficiency and cost of different management techniques to control the invasive gra
Publicado em: 2009
-
9. Properties of SBS and sisal fiber composites: ecological material for shoe manufacturing
The worldwide trend toward using cheap, atoxic and durable materials from renewable resources contributes to sustainable development. Thus, the investigation of the potential use of vegetal fibers as reinforcing agent in polymeric composites has gained new significance. Sisal fiber has emerged as a reinforcing material for polymers used in automobile, footwe
Materials Research. Publicado em: 2008-12
-
10. Desempenho agronômico e alterações morfofisiológicas de hortaliças submetidas a sombreamento para o cultivo orgânico com faixas intercalares / Morphophysiological alterations and yeld of vegetables submitted at different irradiance levels fot the organic cultivation in alley cropping system
Shading effects on morphophisiological characteristics and performance under organic cultivation with sunnhemp (Crotalaria juncea L.) hedgerows were evaluated on rocket plant [Eruca sativa (Mill)], radish (Raphanus sativus L.) and butter head and crisp head lettuce (Lactuca sativa L.), cultivated in different seasons. The experiments were carried out in Sero
Publicado em: 2008
-
11. Morphological-reproductive characterization of jureminha (Desmanthus virgatus L. (Willd) accessions natives of Sergipe. Sergipe, São Cristóvão, SE, 2007. / CARACTERIZAÇÃO MORFOLÓGICOREPRODUTIVA DE ACESSOS DE JUREMINHA (Desmanthus virgatus (L.) Willd.) NATIVA DE SERGIPE
Among the most representative families of the world flora, the Legumonosae (Fabaceae) is one of most expressive her the capacity in fixing nitrogen in the soil and its releasing for the agroecosystems, presence in many agricultural systems, aggressive characteristic of seed dispersion, and by the considerable forage potential. The present work aimed to chara
Publicado em: 2007
-
12. ALVENARIA MODULAR DE SOLO-CIMENTO: UMA ALTERNATIVA PARA REDUZIR IMPACTOS AMBIENTAIS
Amongst the productive chain sectors, the industry of civil construction presents itself as one of the greatest aggressors to the environment. Amongst the most aggressive impacts there are the voluminous mineral consumption - sand and crushed stone - and the generation of residues during the execution of the constructions and in its demolition at the end of
Publicado em: 2006