ABSTRACT Aiming to the red mite Oligonychus yothersi control in yerba-mate, the systemic action of an azadirachtin-based product (12 g of azadirachtin.L-1) was evaluated in the laboratory. To assess the activity on oviposition and mortality of the mite (1), three weekly applications of the product in an aqueous solution (30, 48, and 66 mg i.a..L-1) were performed. The applications were carried out in the soil, next to the base of yerba mate seedlings. After seven days of each application, leaves were removed for infestation with 15 adult mite females. To evaluate the activity in the development, survival, and reproduction of the progeny (2), yerba mate seedlings were irrigated with azadirachtin solution of 30 mg i.a..L-1 (recommended concentration). After seven days, leaves were removed and infested with adult females for oviposition and observation of the progeny. Reduction in fecundity (from 23.7 to 44.2%), fertility (27.4 to 48.1%), and an increase in mortality from 14.6 to 47.5% were observed in females fed on azadirachtin-treated plants. Continuous feeding on plants treated with azadirachtin solution significantly reduced oviposition, pre-oviposition period, and longevity of males. In addition, the viability of the egg-adult, and the duration of the egg-adult period increased. The potential of azadirachtin for the control of O. yothersi and its action from the irrigation of yerba mate plants was confirmed.

Resumen El objetivo de este artículo es analizar las biografías de estudiantes-entrenadores matriculados en la disciplina de Práctica Curricular Supervisada (PCS) en Entrenamiento Deportivo de un curso Educación Física. Para alcanzar este objetivo, nuestra opción metodológica fue realizar entrevistas semiestructuradas a nueve estudiantes-entrenadores de un curso de Educación Física de una institución de enseñanza superior pública, utilizando como base la teoría del aprendizaje permanente de Peter Jarvis (2009b). Los resultados indicaron la necesidad de considerar las diferentes experiencias de vida de los estudiantes-entrenadores durante la PCS. Al comprender la trayectoria personal y deportiva de los estudiantes, la PCS se puede estructurar de manera que respete las expectativas de cada estudiante, fomentando su participación activa durante este importante momento formativo.

Resumo O objetivo deste artigo é analisar as biografias de estudantes-treinadores matriculados na disciplina de Estágio Curricular Supervisionado (ECS) em Treino Desportivo de um curso de Educação Física. Para atingir esse objetivo, optou-se por realizar entrevistas semiestruturadas com nove estudantes-treinadores do curso de Educação Física de uma instituição de ensino superior pública, utilizando como base a teoria de aprendizagem ao longo da vida de Peter Jarvis (2009b). Os resultados indicaram a necessidade de se considerar as distintas experiências de vida dos estudantes-treinadores durante o ECS. Ao se compreender a trajetória pessoal e desportiva dos estudantes, o ECS pode ser estruturado de modo a respeitar as expectativas de cada estudante, estimulando sua participação ativa durante este importante momento formativo.

Abstract The objective of this article is to analyse the biographies of student-trainers enrolled in the Supervised Internship (SI) discipline in Sports Coaches of a course in Physical Education. In order to reach this goal, our methodological option was to conduct semi-structured interviews with nine student-coaches of the Physical Education course at a public higher education institution, based on the theory of lifelong learning by Peter Jarvis (2009b). The results indicated the need to consider the different life experiences of student-coaches during SI. By understanding the students' personal and sporting trajectory, SI can be structured in a way that respects the expectations of each student, stimulating their active participation during this important formative moment.

RESUMO O objetivo do estudo foi analisar o contexto de atuação profissional de uma treinadora de surfe da cidade de Florianópolis, Santa Catarina. Adotaram-se procedimentos de pesquisa qualitativa e estudo de caso, por meio da combinação de técnicas de observação participante e entrevista semiestruturada. Foi utilizada a técnica de Análise Temática para a análise dos dados. Verificou-se que o contexto de atuação profissional da treinadora investigada compreende um sistema amplo e complexo, marcado pela sua participação em diversas atividades e interações sociais, com o envolvimento pleno em seu local de atuação profissional. A intervenção pedagógica da treinadora para o ensino/treino do surfe é condicionado pela sazonalidade, pelas condições do ambiente de prática desta modalidade, assim como pelo tipo de orientação esportiva, com o propósito pessoal de transmitir o seu estilo de vida ligado ao surfe.

ABSTRACT The purpose of the study was to analyze the context of professional work performance of a surf coach from Florianópolis city, Santa Catarina. Qualitative research and case study procedures were adopted conbining participant observation and semi-structured interviews. Thematic Analysis was used for data analysis. It was verified that the coach’s context of professional work performance comprises a broad and complex system, marked by her participation in various activities and social interactions, with full participation in her place of professional work. The coach’s pedagogical intervention for teaching/coaching surfing is conditioned by seasonality, the environmental conditions to practice this sport, and the focus of sports instruction. Essentialy, the coach’s personal goal is to share her surfing lifestyle.

Resumen Introducción: La colangioscopia endoscópica por SpyGlass permite una observación directa de los conductos biliares para el diagnóstico de lesiones e intervenciones terapéuticas. Sus principales indicaciones estenosis indeterminadas de la vía biliar, estadificación de colangiocarcinoma, neoplasias ampulares, así como el tratamiento de cálculos biliares difíciles que no pudieron ser extraídos por CPRE y sus métodos estándar. Objetivo: Conocer el rendimiento diagnóstico de colangioscopia endoscópica en el Hospital Juárez de México. Material y métodos: Estudio retrospectivo y descriptivo. Resultados: El rendimiento diagnóstico de la colangioscopia endoscópica por SpyGlass, en la serie presentada, es efectiva en el diagnóstico de malignidad y relacionándola con los resultados histopatológicos de la biopsia, tiene un 78.57% de concordancia diagnóstica para malignidad y del 100% de concordancia para lesiones benignas siendo estadísticamente significativo p: 0.0294. En la resolución de litos biliares difíciles su rendimiento diagnóstico tiene una probabilidad de éxito cuando se utiliza litotripsia combinada del 73.68% pero un mayor éxito con litotripsia simple de 76.92%, teniendo una probabilidad de reproductibilidad alta en estudios más amplios (c2 = 0.211). Sin embargo, la diferencia encontrada no es estadísticamente significativa, p= 0.520. Conclusión: La colangioscopia endoscópica por SpyGlass es una técnica con alta eficacia en estenosis indeterminadas y en cálculos biliares difíciles que requieren litotripsia.

Resumen Objetivo: Describir la correlación entre los hallazgos en ultrasonido endoscópico y de histopatología en lesiones del tracto digestivo proximal. Método: Estudio retrospectivo, observacional, descriptivo. Expedientes de pacientes con ultrasonografía endoscópica proximal con resultado de patología en el Servicio de Endoscopia del Hospital Juárez de México de enero de 2019 a enero de 2020. Resultados: De 24 individuos, 14 mujeres (58,33%) y 10 hombres (41,67%), edad promedio 53,41 años. 46% sin comorbilidades, hipertensión arterial, diabetes mellitus tipo 2 e hipotiroidismo (15,38%, 11,53%, 11,53% respectivamente). Diagnósticos ultrasonográficos: tumor de páncreas (16,67%), Gist gástrico (16,67%), tumor ampular (12,47%), páncreas ectópico (8,33%), Gist esofágico (8,33%), tumor neuroendocrino (8,33%), pseudoquiste de cola de páncreas, pancreatitis autoinmune, quiste de duodeno, enfermedad de Menetrier, tumor gástrico (4,17%). Histopatología: adenocarcinoma pancreático (12,5%), adenocarcinoma gástrico (12,5%), gastritis crónica (12,5%), adenocarcinoma ampular, de colédoco y páncreas ectópico (8,33%), esofagitis, GIST, pancreatitis, tumor neuroendocrino pancreático (4,17%). La relación: diagnóstico por procedimiento con histopatología, aunque aparenta ser buena por haber una frecuencia alta de concordancia (11 de 18 casos, 68.75%) y tener un c2 <1 (0.617), estadísticamente no es significativo con una p = 0.621; OR 0.314 (IC 0.030 – 3.285). Conclusiones: Aunque los datos obtenidos en el estudio son similares a las estadísticas nacionales y a nivel mundial, la correlación entre los diagnósticos en ultrasonografía y el histopatológico no es estadísticamente significativo, esto debido a que es una base de datos corta, por lo que los datos no pueden ser extrapolados a todos los procedimientos.

ABSTRACT The efficacy of six fungicides for the control greasy spot (Mycosphaerella citri Whiteside) in orange (Citrus sinensis (L.) Osbeck) cv 'Valencia' was evaluated in plots with a randomized block design and six treatments: Azoxystrobin + Difenoconazole, Flutriafol, Difenoconazole, Benomyl, Copper Oxychloride, Trifloxyistrobin and a control. Three spraying, were made, every fifteen days. During the experiment, the incidence, severity and efficacy in the control of (M.citri) were evaluated. In addition, area under the disease-progress curve (AUDPC) and disease-progress curve relative in percent (AUDPCr) were calculated. The data were processed through a simple ANOVA. As results, the incidence remained unchanged up to 21 days after treatment (DAT), with low values between 1.3 and 5 %, which increased from 28 DAT (58-96 %). The initially severity was low (0.1-3 %) and was increased up to 32 %. The efficacy 7 DAT had the highest percentages with Benomyl and Trifloxyistrobin (87.5 %) and Difenoconazole (75 %). While at 14 DAT Difenoconazole and Azoxydifem reached 87.5 %. All fungicides reduced the area under the disease-progress curve (AUDPC) in relation to the control and in correspondence the lowest cumulative relative percentages of disease-progress curve relative in percent (AUDPCr) were obtained by Flutriafol, Benomyl and Trifloxystrobin (8.4, 8.6 and 8.7 %), although without statistical differences with other fungicide, only with the control (11.2 %)

RESUMEN La eficacia de seis fungicidas para el control de Mancha grasienta (Mycosphaerella citri Whiteside) en naranja (Citrus sinensis (L.) Osbeck) var. "Valencia", fue evaluada en parcelas con un diseño de bloques al azar y seis tratamientos: Azoxistrobin + Difenoconazol, Flutriafol, Difenoconazol, Benomil, Oxicloruro de cobre, Trifloxistrobin y un control (testigo). Los productos fueron aplicados cada quince días y seguidamente fue evaluada la incidencia, severidad y eficacia en el control de (M. citri). Además, se calculó el Área Bajo la Curva del Progreso de la Enfermedad (ABCPE) y el daño porcentual relativo (ABCPEr). Como resultado la incidencia se mantuvo sin variación hasta los 21 días después del tratamiento (DDT), con valores bajos entre 1,3 y 5 %, lo cual se incrementó a partir de los 28 DDT con 58-96 %. La severidad inicialmente fue baja (0,1-3 %) y se incrementó hasta 32 %. La efectividad a los 7 DDT, tuvo los mayores porcentajes con Benomil y Trifloxistrobin (87,5 %) cada uno y Difenoconazol (75 %), mientras que a los 14 DDT Difenoconazol y Azoxi-Difem llegaron a obtener (87,5 %) cada uno. Todos los fungicidas redujeron el Área Bajo la Curva del Progreso de la Enfermedad (ABCPE) respecto al testigo y en correspondencia los menores porcentajes relativos acumulados (ABCPEr), fueron obtenidos por Flutriafol, Benomil y Trifloxystrobin (8,4, 8,6 y 8,7 %), aunque sin diferencias estadísticas con los demás productos, excepto con el testigo (11,2 %)

ABSTRACT The aim of the research was to evaluate the in vitro sensitivity of Colletotrichum acutatum antracnosis to seven fungicides. It began with an isolate preserved in the ceparium of the Phytopathology Laboratory of the High School Studies of Xalostoc, Morelos. A completely randomized design was used to evaluate the fungicides benomyl, diphenoconazole, azoxystrobin, trifloxystrobin, copper oxychloride, fluoxastrobin and captan, at high, medium and low doses, for a total of 22 treatments with six repetitions. Sterile distilled water was applied to the control. The treatments were applied at a rate of 5 mL per plate, which contained PDA medium and a mycelial disc (Ø 5 mm). The inoculated plates were incubated at 24 °C, in 12 hour photoperiod. The colony diameter was measured every 24 hours and the percent inhibition was calculated. A bifactorial variance analysis was performed, according to Fungicide and Dose; and the differences between treatments were detected by the LSD test with 95 % confidence. The diameter of the colony and the percentage of inhibition did not show differences for dose levels, without significant effects for the interaction of both factors, fungicides, and dose. However, all doses of the different fungicides inhibited colony growth compared to the control. The benomyl, difenoconazol and captan fungicides were able to totally reduce the growth of the C. acutatum colony; followed by copper oxychloride, azoxystrobin, fluoxastrobin and trifloxystrobin in decreasing order. Only benomyl, difenoconazol, captan and copper oxychloride achieved more than 50 % inhibition

RESUMEN En la investigación se evaluó la sensibilidad in vitro de Colletotrichum acutatum Simmonds a siete fungicidas. Se partió de un aislado conservado en el cepario del Laboratorio de Fitopatología de la Escuela de Estudios Superiores de Xalostoc, Morelos. Se empleó un diseño completamente aleatorizado, donde se evaluaron los fungicidas benomilo, difenoconazol, azoxystrobin, trifloxystrobin, oxicloruro de cobre, fluoxastrobin y captan, a dosis alta, media y baja, para un total de 22 tratamientos con seis repeticiones. En el control se aplicó agua destilada estéril. Los tratamientos se aplicaron a razón de 5 mL por placa, las cuales contenían medio PDA y un disco de micelio (Ø 5 mm). Las placas inoculadas se incubaron a 24 ºC, a fotoperiodos de 12 horas. Cada 24 horas se midió el diámetro de la colonia y fue calculado el porcentaje de inhibición. Se realizó un análisis de varianza bifactorial de los datos, según fungicida y dosis; además, se detectaron las diferencias por la prueba LSD con 95 % de confiabilidad. El diámetro de la colonia y el porcentaje de inhibición no mostraron diferencias para los niveles del factor dosis, sin efectos significativos para la interacción de ambos factores. Todas las dosis de los distintos fungicidas inhibieron el crecimiento de la colonia. Los fungicidas benomilo, difenoconazol y captan lograron reducir totalmente el crecimiento de la colonia de C. acutatum, seguidos en orden decreciente por oxicloruro de cobre, azoxystrobin, fluoxastrobin y trifloxystrobin. Solo benomil, difenoconazol, captan y oxicloruro de cobre lograron más del 50 % de inhibición

Abstract With the purpose of evaluating the effect of ten nutritional regimes in habanero chili cultivated in a hydroponic system under plastic cover, in 2015 a study was carried out from April to September in the experimental field of the Faculty of Agricultural Sciences of the Autonomous University of the State of Morelos. The treatments consisted of three nitrate concentrations in the vegetative stage (10, 12 and 14 me L-1), each with three nitrate:phosphate:sulfate ratios in the flowering stage (14:1.25:4.75, 12:1:7 and 14:1.25:4.75 me L-1) and with three nitrate/potassium ratios in the fruiting stage (14:5, 14:5 and 12:7 me L-1). The treatments were distributed in a completely randomized design with ten replicates each. The supply of the nutritive solutions was by drip irrigation, with a flow rate of 8 Lh-1. Eight irrigations were applied daily, with a time of 1 min irrigation-1 at the beginning of the crop development and up to 4 min irrigation-1 at the fruiting stage. The experimental unit was a black polyethylene container with a capacity of 15.14 L, with red tezontle gravel as a substrate and a plant. The results indicated that, due to the nutritive regime of 14 m L-1 of NO3 - (vegetative stage), 14: 1.25:4.75 m L-1 of NO3 -:H2PO4 -:SO4 2- (flowering stage) and 14:5 me L-1 de NO3 -:K+ (fruiting stage), there was an increase in the number of flowers/plant, number of fruits/plant and yield, which was 1054 g plant-1 in six fruit sections, 33% higher than the yield obtained from the plants they are fed with Steiner solution during the whole crop cycle, while the accumulation of dry matter was also higher by 20.3%.

Resumen Con la finalidad de evaluar el efecto de diez regímenes nutrimentales en chile habanero cultivado en un sistema hidropónico bajo cubierta plástica, en 2015 se realizó un estudio de abril a septiembre en el campo experimental de la Facultad de Ciencias Agropecuarias de la Universidad Autónoma del estado de Morelos. Los tratamientos consistieron en tres concentraciones de nitrato en la etapa vegetativa (10, 12 y 14 me L-1), combinadas cada una con tres relaciones de nitrato:fosfato:sulfato en la etapa de floración (14:1.25:4.75, 12:1:7 y 14:1.25:4.75 me L-1) y con tres relaciones nitrato/potasio en la etapa de fructificación (14:5, 14:5 y 12:7 me L-1). Los tratamientos se distribuyeron en un diseño completamente al azar con diez repeticiones cada uno. El suministro de las soluciones nutritivas fue mediante riego por goteo, con caudal de 8 L h-1. Se aplicaron 8 riegos diarios, con un tiempo de 1 min riego-1 al inicio del desarrollo del cultivo y hasta 4 min riego-1 en la etapa de fructificación. La unidad experimental fue un contenedor de polietileno negro con capacidad para 15.14 L, con grava de tezontle rojo como sustrato y una planta. Los resultados indicaron que por efecto del régimen nutrimental de 14 me L-1 de NO3 - (etapa vegetativa), 14:1.25:4.75 me L-1 de NO3 -:H2PO4 -:SO4 2- (etapa de floración) y 14:5 me L-1 de NO3 -:K+ (etapa de fructificación), hubo un incremento en el número de flores/planta, número de frutos/planta y rendimiento, el cual fue de 1054 g planta-1 en seis cortes de fruto, 33% superior al rendimiento obtenido de las plantas que se nutren con solución Steiner durante todo el ciclo de cultivo, mientras que la acumulación de materia seca también fue superior 20.3%.

O objetivo do estudo foi criar uma escala para avaliar o perfildo estilo de vida, por meio da Teoria da Resposta ao Item, a partir do questionário "Perfil do Estilo de Vida". Para a criação da escala foi utilizado o modelo de resposta gradual proposto por Samejima. Participaram do estudo 580 docentes efetivos de Educação Física no magistério público estadual de Santa Catarina. O modelo mostrou-se adequado para avaliar o estilo de vida das pessoas e a interpretação da escala ficou robusta, principalmente para pessoas com estilo de vida quase positivo.

The objective of the study was to createa scale to measure the profile lifestyle through Item Response Theory in the questionnaire "Profile Lifestyle". For the creation of the scale we used the model graded response proposed by Samejima. The study included 580 effective teachers of physical education in state public teaching of Santa Catarina. The model was adequate for evaluating the lifestyle of the people and the interpretation of the scale was robust, especially for people with almost positive life style.

In this paper, we summarize the diversity of Polyphysaceae species in Todos os Santos Bay, in the state of Bahia, Brazil. On the basis of ten years of collections and the analysis of herbarium material, six species have been recorded for the area: Acetabularia caliculus J.V.Lamour. in Quoy & Gaimard; A. crenulata J.V.Lamour.; A. schenckii Möbius; Parvocaulis myriosporus (Joly & Cord.-Mar.) C.W.N.Moura & J.C.De Andrade comb. nov.; P. pusillus (M.Howe) Berger et al.; and P. parvulus (Solms) S. Berger et al. The last has a distribution extending to the southern Atlantic Ocean. Acetabularia myriospora was transferred to Parvocaulis (as P. myriosporus) on the basis of its short corrugated peduncles and lack of a lower corona in the gametangial ray discs, which are diagnostic characters of this genus. In Todos os Santos Bay, Acetabularia species are more widely distributed than are Parvocaulis species, which are currently restricted to Itaparica Island. The most common taxa were A. caliculus and A. schenckii, which were collected from the majority of the study sites. This paper provides detailed descriptions of the morphology, reproductive aspects and geographic distributions of the algae, as well as discussing the taxa studied.

O objetivo deste estudo foi analisar a associação entre participação nas aulas de educação física (PAEF) e atitudes relacionadas à atividade física (gostar de fazer atividade física e preferir atividades de lazer fisicamente ativas) em adolescentes. Trata-se de um estudo epidemiológico transversal, a partir de uma amostra representativa de adolescentes (n = 4.207, 14-19 anos) estudantes do ensino médio da rede pública estadual de Pernambuco. Dados foram coletados através de um questionário previamente validado. Observou-se que entre os adolescentes que relataram participar das aulas de educação física a chance de gostar de fazer atividade física foi 73% maior nos rapazes e 93% superior nas moças em comparação àqueles que não participam das aulas. A chance de preferir atividades de lazer fisicamente ativas foi 97% e 72% superior nos rapazes e nas moças que PAEF, respectivamente. Concluiu-se que a PAEF está diretamente associada aos indicadores que expressam atitudes dos adolescentes em relação à atividade física.

The objective of this study was to analyze the association between the participation in physical education classes (PPEC) and attitudes towards physical activity (to enjoy physical activity and to prefer active leisure activities) in adolescents. This is a cross-sectional epidemiological study from a representative sample of adolescents (n = 4207, 14-19 years) high school students of public schools from Pernambuco. Data were collected using a previously validated questionnaire. It was found that among adolescents who reported PPEC the chance to enjoy physical activity was 73% higher in boys and 93% higher in girls compared to those who do not participate in the classes. The chance of to prefer active leisure activities was 97% and 72% higher in boys than in girls and PPEC, respectively. It was concluded that the PPEC is directly associated with the indicators that express attitudes of adolescents in relation to physical activity.

Introduction This study compares virulence markers of Helicobacter pylori isolated from patients in 2 cities in the Brazilian Amazon. Methods The study analyzed 168 patients with chronic gastritis from Belém and 151 from Bragança, State of Pará, Brazil. Levels of bacterial DNA associated with cagA and vacA alleles were checked by PCR, and hematoxylin-eosin staining was used for histologic diagnosis. Results In Bragança 87% of patients were genotype s1m1 cagA-positive (s1m1 cagA+), compared with 76% in Belém. In samples from patients in both cities, there was an association between s1m1 cagA+ strains and gastric mucosal damage. Conclusions Both cities have a high frequency of s1m1 cagA+ strains of H. pylori.

O objetivo deste estudo foi avaliar a completude das fichas de notificações de tuberculose de cinco capitais brasileiras com alta incidência regional de tuberculose em 2010 - Salvador, Rio de Janeiro, Cuiabá, Porto Alegre e Belém - através dos relatórios de tabulação do Sistema Nacional de Informação de Agravos e Notificações. Porto Alegre e Cuiabá apresentaram os melhores resultados, enquanto o Rio de Janeiro, capital com o maior número de notificações de tuberculose no país, apresentou o pior. A baixa completude desses formulários pode comprometer a qualidade do Programa Nacional de Controle da Tuberculose e repercutir na assistência e nos processos decisórios.

The aim of this study was to evaluate the completeness of tuberculosis reporting forms in the greater metropolitan areas of five Brazilian capitals where the incidence of tuberculosis was high in 2010-Salvador, Rio de Janeiro, Cuiabá, Porto Alegre, and Belém-using tabulations obtained from the Sistema Nacional de Informação de Agravos de Notificação (National Case Registry Database). The degree of completeness was highest in Porto Alegre and Cuiabá, whereas it was lowest in Rio de Janeiro, where there are more reported cases of tuberculosis than in any other Brazilian capital. A low degree of completeness of these forms can affect the quality of the Brazilian National Tuberculosis Control Program, which will have negative consequences for health care and decision-making processes.

O uso do silicato de cálcio na agricultura brasileira é restrito, embora seja um destino viável economicamente para aproveitamento parte desse subproduto da siderurgia que nas últimas décadas, vem se acumulando com o crescimento do parque siderúrgico brasileiro. O objetivo deste trabalho foi avaliar o efeito da aplicação de doses de silicato de cálcio nos atributos químicos do solo e produção da cana-de-açúcar. O estudo foi realizado no campo, adotando-se o delineamento experimental de blocos casualizados, com quatro repetições, sendo os tratamentos constituídos de doses distintas de silicato de cálcio (0, 700, 1400, 2800, 5600 kg ha-1). O silicato de cálcio adicionado ao solo favoreceu o aumento do pH, Ca, Mg, Fe, Mn, SB, CTC e V% do solo e diminui os teores de (H+Al), MO, Zn, Cu e Si. A aplicação de silicato de cálcio proporcionou incrementos significativos na produção da cana-de-açúcar.

The use of calcium silicate in Brazilian agriculture is restricted, although it is an economically viable target for the use of part of these by-products of steel industry in recent decades, has been accumulating with the growth of Brazilian steel park. The objective of this study was to evaluate the effect of doses of calcium silicate in the chemical soil properties and production of cane sugar. The work was conducted in the field, adopting the experimental design of randomized blocks with four replicates, the treatments consisted of different doses of calcium silicate (0, 700, 1400, 2800, 5600 kg ha-1). The study was conducted in the field, adopting the experimental design of randomized blocks with four replicates, the treatments consisted of different doses of calcium silicate (0, 700, 1400, 2800, 5600 kg ha-1). The calcium silicate added to the soil favored the increase in pH, Ca, Mg, Fe, Mn, SB, CTC and V% of the soil and decreases the levels of (H + Al), MO, Zn, Cu and Si. The application of calcium silicate provided significant increases in production of cane sugar.