Doses de Ureia com Inibidor de Urease (NBPT) aplicado em Cobertura na Cultura do Trigo.

Objetivou-se avaliar a recuperação de nitrogênio por plantas de trigo ?BRS 254? submetido a doses de uréia ou uréia+NBPT aplicadas em cobertura

Adubação de plantio e formação do cafeeiro Conilon.

Neste capítulo, serão abordadas considerações importantes sobre adubações de plantio e sobre o manejo nutricional durante a fase de formação de cafeeiros Conilon, do transplantio até o primeiro florescimento.bitstream/item/216472/1/cpafro-18447.pd

Growth and phosphorus absorption by common bean 'Xodó' genotype under effect of glyphosate reduced rates.

Avaliou-se o efeito de subdoses de glyphosate no crescimento e na absorção de fósforo (P) pelo feijoeiro comum (Phaseolus vulgaris L.) cv. Xodó. O experimento foi conduzido em esquema fatorial 4 x 2 em blocos casualizados com quatro repetições, sendo o primeiro fator constituído pelas subdoses de 0; 4,32; 8,64 e 12,96 g ha-1 de equivalente ácido (e.a.) de glyphosate e o segundo fator constituído por doses de P no solo (50 e 250 mg dm-3). Avaliações foram realizadas 30 dias após a aplicação do glyphosate (DAA). A subdose de 12,96 g ha-1 estimulou o crescimento do feijoeiro comum cv. Xodó, assim como aumentou o teor de P no ramo e o conteúdo de P na parte aérea das plantas

Production of cuttings and nutrient export by Coffea canephora in different periods in the Southwestern Amazon.

Cutting is the main vegetative propagation method used for the production of Coffea canephora plantlets. In this method, parent plants are conducted in a specific field, called clonal garden, which must be managed to produce clonal cuttings. The objective of this study was to evaluate the production of cuttings and the export of nutrients by Coffea canephora in different periods in the Southwestern Amazon. The experiment was carried out in a 6 × 3 split-plot scheme (repeated measures in time), consisting of the combination of six clonal Coffea canephora genotypes (plot) and three cutting collection periods (subplots). The genotypes were: C-057, C-088, C-089, C-125, C-130 and C-160; and the evaluation sampling times were January/2017, May/2017 and September/2017. The applied design was a completely randomized design with four repetitions. The dry season, from May to September, promotes lower orthotropic stem dry mass accumulation by Coffea canephora, but allows obtaining a larger number of viable cuttings for the production of clonal plantlets. Nutrient accumulation by orthotropic stems for cutting production follows the following order: N > K > Ca > Mg > S > P > Mn > Fe > Zn > Cu. Nutrient export by the cuttings follows a descending order: K > N > Ca > Mg > P > S > Mn > Fe > Zn > Cu. A estaquia é o principal método de propagação vegetativa utilizado na produção de mudas de Coffea canephora. Neste método, são utilizadas matrizes conduzidas em um campo específico, denominado de jardim clonal, que deve ser manejado para produção de estacas clonais. Assim, objetivou-se avaliar a produção de estacas e a exportação de nutrientes por cafeeiros Coffea canephora em diferentes épocas na Amazônia Sul Ocidental. O experimento foi conduzido em esquema de parcelas subdivididas no tempo, 6 × 3, formado pela combinação de seis genótipos clonais de Coffea canephora (parcela) e três épocas de coleta de estacas (sub parcelas). Os genótipos foram: C-057, C-088, C-089, C-125, C-130 e C-160; e as épocas de coleta de avaliação foram: janeiro/2017, maio/2017 e setembro/2017. O delineamento foi o inteiramente casualizado com quatro repetições. O período de estiagem, que foi de maio a setembro, proporciona menor acúmulo de massa seca de hastes ortotrópicas por plantas matrizes de Coffea canephora, porém, possibilita a obtenção de maior número de estacas viáveis para produção de mudas clonais. O acúmulo de nutrientes pelas hastes ortotrópicas destinadas a produção de estacas segue a seguinte ordem: N > K > Ca > Mg > S > P > Mn > Fe > Zn > Cu. A exportação de nutrientes pelas estacas segue ordem decrescente: K > N > Ca > Mg > P > S > Mn > Fe > Zn > Cu

Teores de nutrientes em mudas clonais de Coffea canephora BRS Ouro Preto em diferentes volumes de tubetes.

Objetivou-se com este trabalho avaliar o desenvolvimento de mudas de cafeeiros C. canephora ?Conilon ? BRS Ouro Preto? em diferentes volumes de tubetes. o experimento foi instalado no Campo Experimental da Embrapa Rondônia, no município de Ouro Preto do Oeste. o experimento foi conduzido com cinco tratamentos e uma testemunha adicional. os tratamentos foram constituídos por cinco volumes de tubetes (50, 100, 170, 280 e 400 cm³).Organizado por: Henrique Nery Cipriani; Alaerto Luiz Marcolan; Fernando Machado Pfeifer: Alexandre Martins Abdão dos Passos; Marcelo Curitiba Espíndula; Angelo Mansur Mendes

Volatilização de amônia de ureias com ou sem inibidores de urease, submetidas a diferentes lâminas de irrigação.

O objetivo neste trabalho foi avaliar a volatilização de amônia de ureias com ou sem inibidores de urease, submetidas a diferentes lâminas de irrigação

Quasiperiodic graphs: structural design, scaling and entropic properties

A novel class of graphs, here named quasiperiodic, are constructed via application of the Horizontal Visibility algorithm to the time series generated along the quasiperiodic route to chaos. We show how the hierarchy of mode-locked regions represented by the Farey tree is inherited by their associated graphs. We are able to establish, via Renormalization Group (RG) theory, the architecture of the quasiperiodic graphs produced by irrational winding numbers with pure periodic continued fraction. And finally, we demonstrate that the RG fixed-point degree distributions are recovered via optimization of a suitably defined graph entropy

The Impact Of Cardiac Diseases During Pregnancy On Severe Maternal Morbidity And Mortality In Brazil.

To evaluate maternal heart disease as a cause or complicating factor for severe morbidity in the setting of the Brazilian Network for Surveillance of Severe Maternal Morbidity. Secondary data analysis of this multicenter cross-sectional study was implemented in 27 referral obstetric units in Brazil. From July 2009 to June 2010, a prospective surveillance was conducted among all delivery hospitalizations to identify cases of severe maternal morbidity (SMM), including Potentially Life-Threatening Conditions (PLTC) and Maternal Near Miss (MNM), using the new criteria established by the WHO. The variables studied included: sociodemographic characteristics, clinical and obstetric history of the women; perinatal outcome and the occurrence of maternal outcomes (PLTC, MNM, MD) between groups of cardiac and non-cardiac patients. Only heart conditions with hemodynamic impact characterizing severity of maternal morbidity were considered. 9555 women were included in the Network with severe pregnancy-related complications: 770 maternal near miss cases and 140 maternal death cases. A total of 293 (3.6%) cases were related to heart disease and the condition was known before pregnancy in 82.6% of cases. Maternal near miss occurred in 15% of cardiac disease patients (most due to clinical-surgical causes, p<0.001) and 7.7% of non-cardiac patients (hemorrhagic and hypertensive causes, p<0.001). Maternal death occurred in 4.8% of cardiac patients and in 1.2% of non-cardiac patients, respectively. In this study, heart disease was significantly associated with a higher occurrence of severe maternal outcomes, including maternal death and maternal near miss, among women presenting with any severe maternal morbidity.10e014438

Characterization of new exopolysaccharide production by Rhizobium tropici during growth on hidrocarbon substrate.

Made available in DSpace on 2017-11-08T23:29:06Z (GMT). No. of bitstreams: 1 PCharacterizationofnewexopolysaccharide....pdf: 1212598 bytes, checksum: 41efcdb7f61e0fa725e08b591933202d (MD5) Previous issue date: 2017-11-08bitstream/item/166445/1/P-Characterization-of-new-exopolysaccharide....pd

Influence of nitrogen fertilization in mother plants on the growth and quality of clonal seedlings of Coffea canephora ?Robusta? plants.

The nutritional management of the coffee clonal garden influences the production and physiological quality and seedlings production of vegetative propagules. Thus, this study aimed to analyze the seedlings? production from clonal cuttings taken from Coffea canephora mother plants grown with increasing nitrogen mineral doses. The cuttings were taken from C. canephora var. botany Robusta, from the Embrapa Genetic Improvement Program of Rondônia. The mother plants received nitrogen fertilizer at different doses: 0 (Control); 50; 100; 150; 200; 250 and 300 kg of N per hectare divided into 4 applications, during 150 days of orthotropic stems growth (shoots). The following parameters were evaluated: Dry mass of cuttings, nutritional content of cuttings, and seedlings production, with growth analysis at 0, 48, 61, 80, 101, 122, 143, and 164 days after staking (DAS) and analysis of vegetative characteristics at 122 DAS. The nitrogen fertilization in the mother plant resulted in the variation of macronutrient accumulation in cuttings, but the order K> N> Ca> P> Mg> S was maintained, regardless of N dose. In addition, a positive correlation between nitrogen doses and dry matter accumulation, as well as the physiological quality of seedlings was identified