Abstract Analyses of potential sources and products that aim to balance nutrients in soil and plants; improve physical, mineral, and biological attributes of soil; and reduce environmental impacts require greater attention. Therefore, the aim of this study was to evaluate the agronomic efficiency of organomineral fertilizers (OMFs) in Atlantic potato cultivars. The experimental design was a randomized complete block design, with four treatments and six replicates. The treatments consisted of NPK mineral fertilizers (recommended according to soil analysis and nutritional crop requirements) as a control and NPK plus OMF according to composition and form of application (planting, ridging, and leaf), referred to as managements A and B, which indicate the amount of nutrients that the plants received. Therefore, treatments with OMF were designated as follows: P-OMF(A): organomineral fertilizer management applied through the planting furrow; PR-OMF (B): organomineral fertilizer management applied through the planting and ridging, and PR-OMF (B) + L-OMF (B): organomineral fertilizer management applied through the planting and ridging and by leaf application. The applications of P-OMF (A) and PR-OMF (B) + L-OMF (B) resulted in positive effects on special class production and total productivity of Atlantic potato tubers, which increased by 12% to 16% and 11% to 15.5%, respectively. The application of PR-OMF (B) + L-OMF (B) improved the soluble solid content by 2.7% compared to the control (absence of OMF application). Therefore, organomineral fertilizers have the potential to improve the quantitative and qualitative attributes of potatoes.

Resumen El análisis de las posibles fuentes y productos que apuntan a equilibrar los nutrientes en el suelo y las plantas, mejorar los atributos físicos, minerales y biológicos del suelo y reducir los impactos ambientales necesitan más atención. En este sentido, el objetivo de este estudio fue evaluar la eficiencia agronómica de los fertilizantes organominerales (OMF) en papa, cultivar Atlantic. El diseño experimental fue un bloque completo aleatorizado, con cuatro tratamientos y seis repeticiones. Los tratamientos consistieron en el control -fertilizantes minerales NPK (recomendado de acuerdo con el análisis del suelo y los requerimientos nutricionales del cultivo); y NPK más OMF de acuerdo con: composición y forma de aplicación (plantación, crestas y hojas), que fue llamado a lo manejo A y B. Lo manejo A y B se relaciona con las tasas de nutrientes que recibieron las plantas. Por lo tanto, los tratamientos con OMF se designaron como: P-OMF (A): manejo de fertilizantes organominerales (A) aplicado en el surco de siembra; PR-OMF (B): manejo de fertilizantes organominerales (B) aplicada en la siembra y la formación de surcos y PR-OMF + L-OMF (C): manejo de fertilizantes organominerales (B) aplicada en la siembra, la formación de surcos y la aplicación de hojas. Las aplicaciones de P-OMF (A) y PR- PR-OMF (B)+ L-OMF (B) dan como resultado una acción positiva para la producción de Clase Especial y la productividad total de los tubérculos del cultivar Atlantic, con incrementos entre 12 y 16% y 11 a 15.5%, respectivamente. La aplicación de PR-OMF (B)+ L-OMF (B) mejora en un 2.7% el contenido de sólidos solubles, en comparación con la ausencia de aplicación de OMF. Por lo tanto, los fertilizantes organominerales presentan potencial para mejorar los atributos cuantitativos y cualitativos de las papas.

RESUMO Objetivos As taxas de mortalidade por acidente vascular encefálico (AVE) estão em declínio no Brasil, mas diferenças entre as regiões precisam ser melhor investigadas. Foram analisadas as tendências de mortalidade por AVE ajustadas por idade em adultos (30-69 anos) de regiões do Brasil, entre 1996 e 2011. Método Análise realizada após realocação dos óbitos sem registro de sexo ou idade; redistribuição de códigos mal definidos e correção do subregistro. Modelos de regressão linear e de espaço de estados foram utilizados visando estimativas de tendências anuais em todos pontos no tempo. Resultados Observou-se redução de cerca de 50% nas taxas de mortalidade em todas as regiões, para homens e mulheres, com maiores declínios nas regiões Norte e Nordeste, onde as taxas eram as mais elevadas. Conclusão Usar metodologia padronizada é fundamental para interpretação correta das estimativas de mortalidade. Esforços devem ser feitos para prevenção da incidência de AVE, redução das taxas de letalidade e prevenção de sequelas.

ABSTRACT Stroke mortality rates are declining in Brazil, but diferences among regions need to be better investigated. The age-adjusted stroke mortality trends among adults (30-69 years-old) from Brazilian regions were studied between 1996 and 2011. Method Data were analyzed after: 1) reallocation of deaths with non-registered sex or age; 2) redistribution of garbage codes and 3) underreporting correction. A linear regression model with autoregressive errors and a state space model were fitted to the data, aiming the estimation of annual trends at every point in time. Results Although there were high values, a steady decrease of rates was observed. The decreasing trends among all regions were statistically significant, with higher values of decline among the Northeast and Northern regions, where rates were the highest. Conclusion Standardized methodology use is mandatory for correct interpretation of mortality estimates. Although declining, rates are still extremely high and efforts must be made towards prevention of stroke incidence, reduction of case-fatality rates and prevention of sequelae.