bluuebunny/crossref_metadata_2025 huggingface dataset:
Efecto del entrenamiento interválico de alta intensidad sobre el comportamiento del sistema nervioso autóno-mo (Effect of high intensity Interval training on the autonomic nervous system)
Authors: García-Flores Isaac , Hernández-Lepe Marco Antonio , Aburto-Corona Jorge Alberto , Ortiz-Ortiz Melinna , Naranjo-Orellana José , Gómez-Miranda Luis Mario
Published: January 2023

El entrenamiento interválico de alta intensidad (EIAI) se ha convertido en un método de entrenamiento estratégico y novedoso para mejorar indicadores cardiovasculares, sin embargo, se ha estudiado poco el efecto sub-crónico sobre la variabilidad de la frecuencia cardiaca. Objetivo: Determinar el efecto crónico de un EIAI sobre el sistema nervioso autónomo en adultos sedentarios. Método: Participaron 20 adultos sedentarios aparentemente sanos (33.3±5.2 años), a quienes se les estimó la velocidad intermitente final. El programa de entrenamiento interválico consistió en 6 semanas (16 sesiones) con descansos de 48 horas entre ellas. La respuesta del sistema nervioso autónomo se evaluó mediante la variabilidad de la frecuencia cardiaca y el índice de estrés. Resultados: No se encontraron diferencias significativas (p< .05) entre las sesiones del programa de EIAI en el índice de estrés y la variabilidad de la frecuencia cardiaca. Conclusión: El entrenamiento interválico de alta intensidad no mostró alteraciones crónicas sobre el sistema nervioso autónomo, por lo cual este tipo de entrenamiento no causa estrés o sobrecarga en población sedentaria.
Palabras clave: Ejercicio físico; Ejercicio; Velocidad intermitente final; Variabilidad de la frecuencia cardiaca; índice de estrés.
Abstract. High intensity interval training (HIIT) has become a strategic and novel training method to improve cardiovascular indicators, however, studies of the chronic effect on heart rate variability are limited. Objective: To determine the sub-chronic effect of a HIIT on the autonomic nervous system in sedentary adults. Method: 20 apparently healthy sedentary adults (33.3±5.2 years) participated, who were estimated to have their final intermittent speed. The interval training program consisted in 16 sessions with 48-hour breaks between them. Autonomic nervous system response was assessed by heart rate variability and stress score. Results: No significant differences (p< .05) were found between the HIIT program sessions on the stress index and the heart rate variability. Conclusion: The high intensity interval training did not show chronic alterations in the autonomic nervous system, so this type of training does not generate stress or overload in the sedentary population.
Key words: Physical exercise; Exercise; Maximum aerobic speed; Hearth rate variability; Stress score.
Predictores de dismorfia muscular en levantadores de pesas universitarios mexicanos (Predictors of muscle dysmorphia in Mexican college weightlifters)
Authors: Meza Peña Cecilia
Published: January 2023

El modelo de cuerpo ideal masculino que prevalece en la cultura tiene efectos en la insatisfacción muscular, fenómeno que es común en gimnasios, en donde el 10 y hasta el 20% de los levantadores de pesas presentan dismorfia muscular (DM). Aunado a ello, existe evidencia de la relación entre DM y alexitimia (AL). Objetivo. Identificar la prevalencia de dismorfia muscular y alexitimia en levantadores de pesas universitarios, buscando conocer las variables que predicen la dismorfia. Método. Estudio cuantitativo de tipo correlacional con corte transversal. Participantes. 136 usuarios de gimnasios universitarios con edad media 25.98 (DE=4.64), y que llevan asistiendo al menos seis meses al gimnasio, mismos que completaron los cuestionarios de MASS y el TAS-20 respectivos de la DM y AL. Resultados. Un 18.4% de los participantes tienen alexitimia alta, así mismo el 44.9% presenta dismorfia muscular, mientras que un 33.8% está en riesgo de DM. La DM se relaciona con las diferentes dimensiones de la AL, la menor edad y el menor tiempo en el gimnasio. La DM se predice en el 38 % de los casos por las dificultades para expresar sentimientos, el mayor tiempo en el gimnasio, el menor uso de esteroides, el menor IMC y el pensamiento externamente orientado. Conclusiones. El ejercicio físico puede constituir una forma de lidiar con las emociones negativas, no obstante, se debe analizar la relación con el cuerpo a fin de evitar lesiones serias en levantadores de pesas debido a la presencia de DM.
Palabras clave: Dismorfia muscular, levantadores de pesas, predictores, universitarios.
Abstract. The ideal male body model that prevails in culture has effects on muscle dissatisfaction, a phenomenon that is common in gyms, where 10 to 20% of weightlifters have muscle dysmorphia (MD). In addition to this, there is evidence of the relationship between MD and alexithymia (AL). Objective. To identify the prevalence of muscle dysmorphia and alexithymia in university weightlifters, seeking to know the variables that predict dysmorphia. Method. Quantitative cross-sectional correlational study. Participants. 136 users of university gyms with a mean age of 25.98 (SD=4.64), and who have been attending the gym for at least six months, who completed the respective MASS and TAS-20 questionnaires for MD and AL. Results. An 18.4% of the participants have high alexithymia, likewise 44.9% have muscle dysmorphia, while 33.8% are at risk of MD. MD is related to the different dimensions of AL, younger age and less time spent in the gym. MD is predicted in 38% of cases by difficulties expressing feelings, more time in the gym, less steroid use, lower BMI, and externally oriented thinking. Conclusions. Physical exercise can be a way to deal with negative emotions; however, in order to avoid serious injuries in weightlifters due to the presence of MD, the relationship with the body should be analyzed.
Keywords: Muscle dysmorphia, weight lifters, predictors, university students.
Effect of Phlebodium Decumanum on muscle damage, inflammation and cortisol during a precompetitive mesocycle in a National Volleyball Team
Authors: García Verazaluce Juan José , Guisado-Barrilao Rafael , Llera Figueroa Elizabeth , Hernández-Cruz Germán , Rangel-Colmenero Blanca R. , Ocaña-Peinado Francisco M. , Hoyos-Flores José Raúl , Jerez-Mayorga Daniel , Guisado-Requena Isabel María
Published: January 2023

The severe training load of a competitive mesocycle may not be assimilated correctly by athletes, and can provoke endocrine imbalance, muscle damage and inflammation. Supplementation with antioxidants such as Phlebodium Decumanum (PHL) helps protect against such imbalances. The aim of this study is to analyse the effect of PHL on the fatigue during a precompetitive mesocycle in volleyball players. Twenty-four male volleyball players were divided into two groups (experimental and control). The experimental group was supplemented with three PHL capsules in the morning and three in the afternoon for 20 days. Blood samples were taken before training, at the end of the third week and at the end of the fourth week to evaluate creatine kinase (CK), interleukin 6 (IL-6), tumour necrosis factor-alpha (TNF-α), interleukin 10 (IL-10) and cortisol. The results show the control group, the third Cortisol were significantly increased (p < .05). In the experimental group, however, a significant increase (p < .05) was only observed in the third IL-10 value. In addition, significant differences (p < .05) were observed between the control and experimental groups in the second CK. Furthermore, there were moderate variations (effect size, ES > 0.5; 90% CI) in CK, IL-6 and TNF-α. In conclusion, PHL supplementation during a precompetitive mesocycle by volleyball players protects against the muscle damage, inflammatory modulation and cortisol response caused by fatigue.
Keywords: Inflammation, Cortisol, Antioxidants, Inflammatory response, Muscle damage.
Sleep quality affects health-related quality of life in young athletes during competition
Authors: Gajardo-Burgos Rubén , Monrroy-Uarac Manuel , Belmar-Arriagada Hellen , Janse van Rensburg Dina Christa , Bascour-Sandoval Claudio
Published: January 2023

Cross-sectional, analytical study that examined the link between sleep quality (SQ) and health-related quality of life (HRQOL) in young athletes in a sports competition. SQ was measured through the Pittsburgh Sleep Quality Index (PSQI), and HRQOL through the SF36 v2 (SF36v2) short-form health survey in 71 young athletes (39 men; mean age 16.9, SD = 1.2 years; mean 6.5, SD = 3.2 years in sports and mean 10.8, SD = 3.3 hours of weekly training) on the day prior to a competition. When comparing the athletes according to SQ (poor SQ > 5 PSQI), significant differences were found (p < .05) in HRQOL in the domains bodily pain, general health, vitality, social function, emotional role and mental health, but not in the domains bodily function and physical role. Our results suggest poor SQ is associated with a worse perception of HRQOL in young athletes in competition.
Key words: Sleep hygiene, mental health, quality of life, athletes, youth sports.
Diferencia del perfil de los estados de ánimo en jóvenes escolares que practican deporte extraescolar federado vs no federados (Difference in the profile of moods in young schoolchildren who practice federated extracurricular sports vs. schoolchildren)
Authors: Fernández Javier , Cañada Fernando Calahorro , Luque Gema Torres
Published: January 2023

El objetivo del presente estudio es comparar el perfil de los estados de ánimo (EA) en jóvenes escolares que practican diferentes deportes extraescolares de manera federada respecto a escolares de Educación Primaria y Secundaria que no están federados. Seleccionándose un total de 329 sujetos (141 deportistas y 188 escolares no practicantes). Los EA se evaluaron mediante el cuestionario Profile of Moods States (POMS). La comparación se realizó en base al deporte practicado y en función de si eran deportistas federados o no federados. Los resultados muestran valores más elevados en la escala del vigor, así como diferencias significativas en las escalas depresión y fatiga entre los deportistas. Además, se observan diferencias entre no federados escolares para la depresión, hostilidad y tensión. Se concluye que los deportistas muestran valores que se asocian con el denominado perfil iceberg.
Palabras clave: estados de ánimo, atletismo, fútbol, hockey, deporte federado, escolares.
Abstract. The objective of this study is to compare the profile of mood states (EA) in young schoolchildren who practice different extracurricular sports in a from Primary and Secondary Schoolchildren regarding if the practice it in a federated way or not. A total of 329 (141 athletes and 188 non practicing schoolchildren) subjects were selectec. AEs were assessed using the Profile of Moods States (POMS) questionnaire. The comparison was made based on the sport practiced and depending on whether they were federated or school athletes. The results show higher values in the vigor scale, as well as significant differences in the depression and fatigue scales among athletes. In addition, differences are observed between schoolchildren and athletes for depression, hostility and tension. It is concluded that athletes showed values that are associated with the stated iceberg profile.
Keywords: moods, athletics, soccer, hockey, federated sport, schoolchildren.
As cidades europeias do desporto da região norte de Portugal: implicações no desenvolvimento do desporto local
Authors: Carvalho María José , Ferreira Joana , Sousa Marisa , Paipe Gustavo
Published: January 2023

As autarquias são as entidades públicas mais próximas da comunidade que implementam as políticas desportivas municipais, atuando na perspetiva de que o desporto é um direito de todos os cidadãos. A nível europeu, a Federação Europeia das Capitais e Cidades do Desporto atribui o prémio Cidade Europeia do Desporto às cidades candidatas vencedoras. Desta forma, o presente estudo teve como objetivo identificar e caracterizar as implicações que a atribuição deste prémio teve para o desenvolvimento do desporto local e das suas políticas. nas cidades vencedoras do CED. Para tal, foi utilizada uma metodologia qualitativa, através de entrevistas aos responsáveis ​​pela política desportiva dos concelhos de Guimarães, Maia, Gondo-mar e Braga, da análise de documentos relativos às candidaturas ao prémio CED e dos respetivos relatórios finais. Os resultados obtidos basearam-se na análise do conteúdo dessas entrevistas e documentos. Os resultados mostraram que: os municípios cumpriram os objetivos e programas de atividades estabelecidos nas solicitações; O CED foi importante para o desenvolvimento do esporte; as políticas desportivas municipais foram orientadas para o desporto para todos, tendo como eixo principal a cidadania; Após o ano CED, o crescimento esportivo nos municípios foi marcante em vários aspectos.Assim, o CED determinou um conjunto de implicações que se refletem na melhoria das políticas desportivas municipais. Destacamos a oferta desportiva a todos os cidadãos, a promoção do desporto como fator de valor social na comunidade, a organização de inúmeros eventos, o investimento em infraestruturas desportivas e o seu reconhecimento internacional.
Palavras-chave: gestão desportiva, políticas públicas desportivas, municípios, ases europe, cidade europeia do desporto
Enfoque de la inclusión de estudiantes con discapacidad en la Formación Inicial Docente de Educación Física en el Perú (Approach to the inclusion of students with disabilities in the Initial Teacher Training of Physical Educa-tion in Peru)
Authors: Torres Paz Luis Edwin , Granados Barreto Juan Carlos , Torres Lozada Edgardo José , Bustamante Cerna David , Hernández-Fernández Bertila
Published: January 2023

El propósito de este estudio fue analizar el Diseño Curricular Básico Nacional de la Formación Inicial Docente (FID) del Programa de Estudios de Educación Física del Perú en materia de inclusión de estudiantes con discapacidad. Se evaluó la correspondencia entre los dominios y competencias que sirven de base para el contenido curricular y los retos y requerimientos que proponen los documentos de la Organización de Estados Iberoamericanos para la Educación, la Ciencia y la Cultura para alcanzar la educación inclusiva. El análisis de los cursos en la FID se fundamentó en el manual de codificación alineado al Marco de Dominios Teóricos modificado para orientarse a la educación física inclusiva. Los resultados revelaron que Diseño Curricular de la FID de Educación Física del Perú sí se orienta a desarrollar en el profesorado cualidades que permitan atender las necesidades, intereses y contextos de todos los estudiantes. Sin embargo, el análisis de los contenidos demuestra que no hay un enfoque específico para estudiantes con discapacidad en la mayoría de sus cursos. Por lo cual el artículo concluye recomendando la implementación de contenidos con enfoque inclusivo en el diseño curricular.
Palabras clave: inclusión; formación; docente; discapacidad; diversidad.
Abstract. The purpose of this study was to analyze the National Basic Curricular Design of the Initial Teacher Training (FID) of the Physical Education Study Program of Peru in terms of the inclusion of students with disabilities. The correspondence between the domains and competencies that serve as the basis for the curricular content and the challenges and requirements proposed by the documents of the Organization of Ibero-American States for Education, Science and Culture to achieve inclusive education was evaluated. The analysis of the courses in the FID was based on the coding manual aligned to the Framework of Theoretical Domains modified to be oriented towards inclusive physical education. The results revealed that Curriculum Design of the FID of Physical Education of Peru is oriented to develop in the teaching staff qualities that allow attending to the needs, interests and contexts of all students. However, the content analysis shows that there is no specific focus for students with disabilities in most of their courses. Therefore, the article concludes by recommending the implementation of content with an inclusive approach in curricular design.
Keywords: inclusion; training; teacher; disability; diversity.
Análisis descriptivo de las variables relacionadas con la adjudicación de los contratos de servicios y concesión de servicios deportivos en la Comunidad de Madrid (Descriptive analysis of the variables related to the award of the service contracts and concession of sport services in the Community of Madrid)
Authors: Rodríguez Vela Manuel
Published: January 2023

La contratación pública es uno de los elementos más importantes de la economía nacional, representando el 23,4% del PIB. El gasto deportivo anual liquidado por las administraciones supera los 2.600 millones de euros. El objetivo del estudio fue describir las diferentes variables que influyen en la adjudicación de los contratos de servicios y concesión de servicios deportivos de la Comunidad de Madrid. Se analizaron 141 licitaciones, con un valor estimado del contrato global de 51.217.778,74 euros, recibiéndose un total 496 propuestas diferentes. Los resultados obtenidos indican que la mayoría de los servicios se licitan con un procedimiento abierto, utilizándose varios criterios de adjudicación además del precio, que no se suelen solicitar proyectos técnicos a las entidades que optan al servicio y que la variable que más incidencia tiene en la bajada del precio de adjudicación es la duración del contrato.
Palabras clave: gestión indirecta, licitación deportiva, criterios de adjudicación, gestión deportiva, contratación pública, outsourcing.
Abstract. Public procurement is one of the most important elements of the national economy, representing 23.4% of GDP. The annual sports expenditure settled by the administrations exceeds 2,600 million euros. The objective of the study was to describe the different variables that influence the awarding of service contracts and the concession of sports services in the Community of Madrid. 141 tenders were analyzed, with an estimated value of the global contract of 51,217,778.74 euros, receiving a total of 496 different proposals. The results obtained indicate that most of the services are tendered with an open procedure, using several award criteria in addition to the price, that technical projects are not usually requested from the entities that opt for the service and that the variable that has the greatest incidence in the reduction of the award price is the duration of the contract.
Keywords: indirect management, sports bidding, award criteria, sport management, public contracting, outsourcing.
Neuromotricity and body schema. Bases for the use of body percussion in the sciences of physical educa-tion and sport
Authors: Romero Naranjo Francisco Javier , Andreu-Cabrera Eliseo , Arnau-Mollá Antonio Francisco
Published: January 2023

The aim of this article is to propose a theoretical and practical justification on the work for the internalization of the body schema in relation to neuromotricity. For this purpose, a bibliographical review is established on the perceptual-motor variables related to the elaboration of the body schema, such as attitude, postural control, spatial structuring, temporal structuring, balance and coordination with practical exercises of body percussion for its application in the physical education sciences. In this way, applying practical resources focused on the work of cognitive and executive functions, we offer an innovative psycho-pedagogical method in the field of human motor skills.
Keywords: Body schema, neuromotricity, body percussion, BAPNE, physical education, executive functions
Enjuagues bucales con carbohidratos y su uso en deportistas. Resumen de revisiones sistemáticas (Carbohydrate mouthwashes and their use in athletes. Overview of systematic reviews)
Authors: Fuentes-Barría Héctor , Aguilera-Eguía Raúl , González-Wong Catalina
Published: January 2023

Objetivo; Analizar los efectos del enjuague bucal con carbohidratos en deportistas. Material y Métodos; Se realizó una búsqueda en la revista Retos, además de Medline / PubMed, Web of Science, Springer, Scopus, Europe PMC, SPOLIT, SPORTDiscus, SciELO, Epistemonikos y Trip database. Las búsquedas se realizaron entre los años 2018 y 2022 utilizando la estrategia “carbohydrate AND mouth rinse AND sports”, seleccionándose solo revisiones sistemáticas con metaanálisis. Resultados; Se identificaron 318 registros de los cuales luego de aplicar los criterios de elegibilidad se analizaron tres, cuyos resultados mostraron posibles mejoras sobre la potencia media de salida (Diferencia media estandarizada (DME) = 0,25, IC 95%; 0,04 a 0,46), rendimiento deportivo (DME = 0,15, IC 95%; 0,04 a 0,27) y la resistencia muscular hasta el fallo (Diferencia media (DM) = 1,24, IC 95%; 0,70 a 1,77), mientras que el tiempo contrarreloj (DME = -0,13, IC 95; -0,36 a  0,10) y la fuerza máxima muscular  (DM = 0,25, IC 95%; -1,81 a 2,32) no muestran mejoras significativas. Conclusión; La suministración de un protocolo de enjuagues bucales con carbohidratos en forma constante puede constituir una ayuda ergogénica. Sin embargo, estos efectos aún son controvertidos.
Palabras clave: Suplementos dietético; carbohidratos; enjuague bucal; rendimiento deportivo; medicina deportiva.
Abstract. Objective; To analyze the effects of mouthwash with carbohydrates in athletes. Material and methods; A search was carried out in the journal Retos, in addition to Medline / PubMed, Web of Science, Springer, Scopus, Europe PMC, SPOLIT, SPORTDiscus, SciELO, Epistemonikos and Trip database. The searches were carried out between the years 2018 and 2022 using the strategy "carbohydrates AND mouthwash AND sports", selecting only systematic reviews with meta-analysis. Results; 318 records were identified, of which after applying the eligibility criteria, three were analyzed, which results showed possible improvements on the mean power output (Standardized Mean Difference (SMD) = 0.25, 95% CI; 0.04 to 0 .46), athletic performance (SMD = 0.15, 95% CI, 0.04 to 0.27), and muscular endurance to failure (Mean Difference (MD) = 1.24, 95% CI, 0.70 to 1.77), while time trial (SMD = -0.13, 95% CI; -0.36 to 0.10) and maximum muscle strength (MD = 0.25, 95% CI; -1, 81 to 2.32) does not show significant improvements. Conclution; The administration of a protocol of mouth rinses with carbohydrates in a constant way could constitute an ergogenic aid. However, these effects are still controversial.
Keywords: Dietary supplements; carbohydrates; mouthwashes; athletic performance; sports medicine.
Mothers’ wellbeing during COVID-19 in Singapore: An interpretative phenomenological analysis
Authors: H J Lim Mary-Lynn , Freeman Glynis
Published: January 2023

The COVID-19 pandemic has impacted many families around the world and particularly so among parents and their children whose well-being have been tremendously affected. Emergent research suggests that mothers tend to experience greater level of distress and struggle more in trying to manage their well-being and that of their children. However, there has been less investigation on mothers’ personal experiences during the pandemic period and particularly so a lack of research in terms of interviewing mothers in Singapore. The aim of this study was to provide an in-depth understanding of the lived experience of working mothers and their well-being—how their well-being might influence and have a greater impact on their school-going children during the COVID-19 pandemic period in Singapore. Five working mothers of school-going children between aged 8 to 12 years were recruited and participated in semi-structured interviews. The verbatim transcripts of the interviews were analysed using the interpretative phenomenological analysis (IPA). The analysis revealed three superordinate themes: 1) The challenge of working from home, 2) Mother’s perspectives on self-care, 3) Distinctive connections between mother and children. The overall findings revealed the authentic lived experiences of working mothers—with a key focus on their first pandemic lockdown experience in Singapore—the journey they have gone through while managing both their children and work from home. This study highlighted the importance of considering mothers’ well-being that might affect their children through the way they approached them. Essentially, the need to raise awareness of mothers’ well-being in times of crisis is critical and should be considered when designing interventions to support mothers during emergency situations, and to have future studies to take this study further.
Taiwanese Perceptions of China’s Unification Policy
Authors:   Global Knowledge and Convergence Association, Lee KwangSu
Published: January 2023

The purpose of this paper is to study China’s unification policy study and to study Taiwan's response and changes in Taiwan’s youth’s perception of unification. The conclusion of the study is that China's unification policy is “Anti- Independence & Promoting Unification”, and for this purpose, military and diplomatic pressure and economic and social inducement tactics are used. In response, Taiwan was evaluated to respond with international support and cooperation while emphasizing its status as a sovereign independent country, and to respond with a “Resisting China & Protecting Taiwan” strategy against China and protecting Taiwan, dismissing it as China's Unified Front Strategy. In this process, Taiwanese youth's perception of unification is particularly increasing compared to the elderly, showing a clear trend of ‘De-Chineseization’, which shows a growing reluctance to reunification.
A Study on the Activation of Busan Port Distripark to attract Foreign Investment in Busan
Authors:   Global Knowledge and Convergence Association, Jang Jung Jae , Kim Dongha
Published: January 2023

Busan, which has a world-class port, has favorable conditions for attracting overseas investment, but its growth is not high compared to other ports abroad and in Korea in recent years. Against this background, the purpose of this study is to derive measures and implications to revitalize the Busan Port Distripark in order to revitalize investment attraction in Busan. The following measures were derived as a result of a survey on foreign-invested companies in Busan, an IPA analysis of difficulties, and a case analysis of the China port Distriparks. First, it is necessary to establish a one-stop logistics and administrative service support system by integrating the distributed administrative support system. In addition, a legal system to support this is required. Second, it is necessary to improve marketing and additional infrastructure that emphasizes Busan's competitiveness in SOCl. Air-land(Train)-Sea transportation infrastructure and convention facilities are the advantages of Busan, so it is necessary to further improve them and develop them into the e-commerce area. Third, it is necessary to establish a legal basis for investment support only for foreigners by enacting the Busan Metropolitan Government Ordinance on the Promotion of Foreign Investment. Fourth, it is required to create infrastructure such as education, hospitals, and housing that workers in foreign-invested companies and their families can live in comfort.
Mitigating Academic Institution Dropout Rates with Predictive Analytics Algorithms
Authors: Lainjo Bongs
Published: January 2023

Multiple studies show student dropout rates across rich, low and middle-income countries. With the development of machine learning, various learning institutions have initiated predictive analytics algorithms to solve this issue. However, there is limited knowledge on how this strategy has been employed to optimize retention rates. The research aims to comprehensively review PAAs Strategies and demonstrate how they have been effectively implemented in optimizing retention rates with a case study focusing on North America. The study employed a quantitative research methodology and thematic study design to review the existing literature. The result shows that learning institutions used a combination of data mining classifiers such as k-Nearest Neighbor, Neural Networks, Decision Tree, and Naive Bayes to categorize student dropout rates and optimize retention rates. The PAAs approach has been utilized by various educational institutions across North America, applying multiple predicting algorithms to ensure efficiency.

Keywords: Predictive analytics algorithms, mitigating dropout rates, retention rates, classifiers, Learning institutions, North America
Effect of conjoint use of fertilizers and soil amendments on soil fertility and yield of groundnut (Arachis hypogaea L.)
Authors:   Department of Soil Science, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, RANSING S.S.
Published: January 2023

The field experiment was conducted during 2017-18 and 2018-19 at Oilseeds Research Unit, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (Maharashtra) to study the effect of fertilizer and soil amendment on soil fertility and yield groundnut (Arachis hypogaea L.). The experiment was laid out in randomized block design with three replications and nine treatments. The pooled data revealed that the application of gypsum and phosphogypsum did not influence significantly the soil pH, EC, organic carbon and calcium carbonate content. However, the fertility status of soil in terms of available nitrogen, phosphorus, potassium and sulfur as well as exchangeable calcium, magnesium was found significantly higher with the application of RDF-sulfur free + 400 kg phosphogypsum ha-1. The available nitrogen, phosphorus, potassium, sulfur, exchangeable calcium and magnesium contents were increased by 10, 23, 7, 122, 42, and 14% with RDF-sulphur free + 400 kg phosphogypsum ha-1 as compared to control, respectively. Significantly higher pod (2.0 t ha-1) and haulm yield (2.5 t ha-1) of groundnut was observed with RDF-sulphur free + 400 kg phosphogypsum ha-1. Similarly, the oil and protein contents were also increased with phosphogypsum level and maximum oil (51%) and protein (29.4%) contents were observed with RDF-sulphur free + 400 kg phosphogypsum ha-1 treatment. This treatment was statistically at par in terms of soil fertility, yield, oil and protein content of groundnut with RDF-sulphur free + 300 kg phosphogypsum ha-1.
Soil test crop response approach for optimizing integrated plant nutrients supply to achieve targeted yield of hybrid maize (Zea mays L.) in Mollisols
Authors:   1Department of Soil Science, G.B.Pant University of Agriculture & Technology, Pantnagar, LUTHRA NIDHI
Published: January 2023

A field experiment was conducted during 2017-18 at Crop Research Centre, G.B.P.U.A.&T., Pantnagar with the objective of developing fertilizer adjustment equations and quantifying doses for achieving targeted yield of hybrid maize (Zea mays L.) by using STCR approach. Response of hybrid maize to four levels of N, P and K and two levels of FYM under different fertility levels was studied. Nutrient requirements (NR) were reported as 2.17, 0.46 and 2.74 kg q-1 for N, P and K, respectively. The contribution of nutrients N, P, and K from fertilizers (%CF) was found as 58.2, 62.7 and 420.4% , from soil (%CS) as 33.1, 26.8 and 22.7%, from organic matter FYM (%CFYM) as 45.2, 14.4 and 239.4% , from fertilizer with FYM (%CF*) as 62.4, 63.5 and 427.6%, respectively. Fertilizer adjustment equations and ready reckoners were developed with and without FYM for different targeted yield and soil test values of N, P and K. It was observed that response of hybrid maize to N, P and K fertilizers was higher when integrated with FYM application as compared to N,P and K alone. The average saving of fertilizer by application of 10 tonnes FYM was 24.52 kg ha-1 N, 7.11 kg ha-1 P and 3.50 kg ha-1 K within the range of soil test value and yield targets on Mollisol.
Growth and productivity of maize (Zea mays L.) as influenced by organic weed and nutrient management practices in Western Rajasthan
Authors:   Department of Agronomy, College of Agriculture Sumerpur Pali (Rajasthan)-306126, JAIN L.K
Published: January 2023

An experiment was conducted during 2019 and 2020 at College of Agriculture, Sumerpur (Rajasthan) to study the effect of organic weed management and organic nutrient management treatments practices on maize (Zea mays L.)in split plot design with 3 replications.The two years mean data revealed that the minimum weed infestation (79.1%) and maximum weed control efficiency (93.1%) was recorded in weed free check as against weedy check among various weed management treatments at harvest. Most of the growth attributes, grain (3.36 t ha-1) and stover (6.26 t ha-1) yield of maize were significantly affected by weed management and nutrient management practices and found maximum in weed free check maintained up to 60 DAS closely followed by stale seedbed+ hoeing once at 20 DAS + straw mulch applied @ 5 t ha-1 at 30 DAS against weedy check. The application of vermicompost @ 75% of recommended dose of nitrogen (RDN i.e. 90 kg N equivalent) in two splits (75% at sowing +25% as top dressing at 30 DAS) along with seed treatment with fermented beejamurt and two sprays of jeevamurt registered significantly hgher growth parameters besides grain yield of 3.17 t ha-1as compared to 100% RDN through FYM. The mean gross return, net return and B:C ratio were significantly affected by various weed and nutrient management practice and maximum values were recorded with weedy check and 755% RDN through vermicompost + STB + JT, respectively.
Efficacy of various doses of salicylic acid, naphthalene acetic acid and gibberellic acid on vegetative growth and pod yield of broad bean (Vicia faba L.)
Authors:   Department of Horticulture, Institute of Agricultural Sciences, Banaras Hindu UniversityVaranasi-221005 (U.P.), RATHORE KRATIKA
Published: January 2023

To investigate the efficacy of various doses of plant growth regulators on vegetative growth and pod yield of broad bean (Vicia faba L.), a field experiment was accomplished at Vegetable Research Farm, B.H.U., Varanasi during the winter season of 2019-20. Ten treatments were evaluated in randomized block design with three replications. Results indicated that the growth parameters like plant height, number of branches/plant significantly increased with foliar spray of gibberellic acid followed by NAA and salicylic acid. The yield attributes like pod width, fresh pod weight, number of pods/plant as well as fresh pod yield significantly enhanced by NAA followed by gibberellic acid and salicylic acid with various concentrations, respectively. The foliar spraying of 120 ppm GA3 tended to produce plant with maximum height (116.4 cm), number of branches/plant (6.3), pod length (7.5 cm), number of seeds/pod (4.6) as well as early 50 % flowering (57.3 days) whereas, spraying of 40 ppm NAA exhibited the maximum pod width (1.3 cm), fresh pod weight (4.6 g), number of pods/plant (87.5) as well as fresh pod yield (105.0 q ha-1) as compared to other treatments. The maximum net return (Rs. 337326.5 ha-1) was recorded with 40 ppm NAA with B: C ratio of 3.65 followed by 30 ppm NAA and 20 ppm NAA. The lowest net income (Rs. 162382.5 ha-1) and B: C ratio (1.76) was obtained from control. The spraying of NAA was found superior in terms of yield and yield attributes as well as benefit cost ratio followed by GA3 and salicylic acid.
Integrated use of Propiconazole, Pseudomonas fluorescens and Bacillus subtilis for the management of rice brown leaf spot
Authors:   Department of Plant Pathology, Faculty of Agriculture, Annamalai University, Chidambaram, India-608002, KARAN R.
Published: January 2023

The present investigation was carried out to study the effect of integrated use of propiconazole and bacterial bio control agents (Pseudomonas fluorescens and Bacillus subtilis) on the incidence of rice (Oryza sativa L) brown leaf spot during 2020-2021 at Annamalai University, Chidambaram. Among the various treatments tested in pot culture, seed treatment with consortia of P. fluorescens and B. subtilis + 1st foliar spray with Consortia of P. fluorescens and B. subtilis at 45 DAT + 2nd foliar spray with Propiconazole 25% EC at 60 DAT (T7) recorded minimum disease incidence (7.45%) and maximum number of productive tillers/ clump (17), grain (76.0 g/pot) and straw (127 g/pot) yield. In field studies also T7 treatment produced least disease incidence of brown spot (8.50%) and maximum growth parameters (17 productive tillers/clump) grain (74 qha-1) straw (86.30 qha-1) yield. Per cent disease incidence increased regularly with age of the crop, irrespective of treatments and maximum values were recorded at harvest. The maximum disease incidence and minimum values of growth and yield of rice recorded under control in both pot culture and field condition.
Morpho-chemical characterization of broccoli (Brassica oleracea var. italica)
Authors:   Sasya Shyamala Krishi Vigyan Kendra, Ramkrishna Mission Vivekananda University, Narendrapur-700103, West Bengal, India, KUNDU P
Published: January 2023

The present study was carried out at Instructional farm, Ramakrishna Mission Vivekananda University, during two consecutive rabi seasons of 2018-2019 and 2019-2020 with the objective of varietal evaluation on the basis of morpho-chemical characterization. It can be opined that the variety, centauro recorded best yield and quality attributing characters. The variety, centauro documented highest head weight (375.0 g) whereas priya registered lowest yield (104.2 q ha-1). Under different aspects based on quality evaluating factors, it can be inferred that centauro registered best performance in term of cholorophyll-a (2.8 mg g-1), cholorophyll-b (5.7 mg g-1), vitamin-C content (867.7 mg kg-1) and also recorded best shelf life (5.7 days). Biochemical composition found best in florets, leaves and stalks in centauro according to protein, ash, total carbohydrate and crude fibre content. Out of six, the variety centauro has executed satisfactory yield attributing characters and biochemical properties, enhanced the nutritive security under the congenial agro-climatic conditions in coastal belt of south Bengal.
Evaluation of maize based inter cropping system as influenced by planting geometry and weed management practices
Authors:   ICAR, Nagaland Centre Jharnapani, Medziphema-797106. Nagaland, SINGH CHONGTHAM ROBEN
Published: January 2023

A field experiment was conducted during kharif seasons of 2016 and 2017 at the Research Farm, ICAR Research Complex for NEH Region, Nagaland Centre to study of the effect of planting geometry and weed management practices on maize (Zea mays L.) based intercropping system. The experiment was laid out in randomized block design with twelve treatments and replicated three times. The results revealed that different planting geometry patterns did not affect the growth and yield attributes at any stage of growth of maize. Growth attributes tended to increase with advancement of growth and maximum values were recorded at 90 DAS. The highest grain and stover yields of maize were recorded as 2.54 t ha-1 and 4.98 t ha-1 from the maize + soybean (2:2) planting geometry. Weed management practices had significant effect over weedy check on plant growth parameters, yield attributes, grain and stover yields except test weight of maize. The highest grain (2.87 t ha-1) and stover yields (5.55 t ha-1) of maize were recorded with two hand weedings at 20 and 40 DAS which was at par with pre-emergence application of pendimethalin @ 1.0 kg a.i.ha-1 + 1 HW at 30 DAS.
Evaluation of wheat (Triticum aestivum L.) genotypes under irrigated and rainfed conditions in intermediate zone of Jammu and Kashmir
Authors:   Organic Farming Research Centre, SKUAST - Jammu, India., PANOTRA NARINDER
Published: January 2023

Field experiments were carried out at the research farm of Regional Agricultural Research Station, Rajouri, SKUAST-Jammu during 2013 – 2016 rabi season under irrigated (IC) and rainfed conditions (RC) of inter-mediate zone of UT of Jammu & Kashmir in order to determine the high adaptive yielding with high quality bread wheat genotypes.The experiments were laid out in a randomized block design with 4 replications and six varieties of wheat. Genotypes were significantly different among themselves for all the phenological traits under irrigated and rainfed conditions. The pooled results of three years revealed that wheat genotypes VL 804 and HS 562 performed better in terms of growth, yield attributes and yield under irrigated condition compared to genotypes cultivated under rainfed condition. However, genotypes VL 907 and HS 507 ‘Improved’ found better in growth and yield than other genotypes under rainfed condition. The highest net returns of Rs. 76924 ha-1 and B:C ratio of 2.86 was recorded with in genotype VL 804 under irrigated condition and net returns of Rs. 39903 ha-1 and B:C ratio (2.78) in genotype VL 907 under rainfed condition.
Foliar application of calcium and micronutrients for yield, quality and fruit shelf life enhancement in papaya var. Surya
Authors:   Department of Fruit Science, Kerala Agricultural University, College ofAgricultureVellayani-695522, Kerala, ANJU P
Published: January 2023

An experiment was carried out to assess the effect of foliar application of micronutrients (boron and zinc) and calcium on yield characteristics, quality attributes and fruit shelf life of papaya (Carica papaya L.) var. Surya at College of Agriculture Vellayani during 2019-20.The field experiment was laid out in randomized block design with nine treatments and three replications. Among different treatments, foliar application of borax (0.5%), zinc sulphate (0.5%) along with calcium nitrate (0.5%) had most favorable effect in increasing the yield characters likefruit weight (722 g), fruit length (21.0 cm), fruit girth (39.8 cm), fruit volume (709.3cc), pulp percentage(82.1%), flesh thickness (3.2cm), number of fruits plant-1 (50.5) and total yield plant-1 (36.5kg), qualitative attributes like TSS (14.5ºbrix), total carotenoids (2.2 mg 100g-1), ascorbic acid (65.3 mg 100g-1), total sugar (9.8 %)and shelf life of papaya fruits (7.0 days). The control plants showed the lowest values for fruit weight (384.2 g), fruit length (14.5 cm), fruit girth (26.8 cm), fruit volume (309cc), pulp percentage(61.3%), flesh thickness (1.8cm) and total yield plant-1 (13.6kg), qualitative attributes like TSS (11.1ºbrix), total carotenoids (1.4mg 100g-1), ascorbic acid (43.2mg 100g-1), total sugar (6.6%) and shelf life of papaya fruits (4.2 days). water spray recorded lowest value for number of fruits plant-1(35.2).
Augmentation of physiological and quality parameters of taro (Colocasia esculenta L.) Schott) through organic manures
Authors:   Department of Horticulture, Faculty of Agriculture, Annamalai University, Annamalai Nagar-608002 (Tamil Nadu) India, MAHALAKSHMI M
Published: January 2023

A field experiment was conducted during February -August 2020 at Kollakudi village, Tiruvannamalai, Tamil Nadu, India to find the influences of organic manures on physiological and quality parameters of taro variety Sree Rashmi. The experiment was laid out in the randomized block design with nine treatments replicated thrice. Organic manures opted for the study include vermicompost, farm yard manure, phosphobacteria, neem oil cake applied in basal form, effective microorganisms, panchagavya, seaweed extract wassoil drenched on the day of sowing, 30th and 60thdays after sowing as per the treatment. The total cormel yield/ plant(618.94 g), total cormel yield / plot (24.13 kg), dry matter production (48.45 tha-1), total starch (9.88%), total sugar (1.89%), total folate (24.12 μg/100g) were found to be maximum with RDF+ vermicompost (5t ha-1) + sea weed extract (5ml/ litre) + phosphobacteria (2 kg ha-1). Among the organic manures, the combined application of seaweed extract, vermicompost, and phosphobacteria proved to be superior to others in respect of quality and physiological parameters. The minimum values of all these characters were recorded under control.
Soil microbial and enzymatic responses to various sources of potassium in fodder maize and sugargraze
Authors:   ICAR-National Dairy Research Institute, Karnal, (Haryana) 132 001, MAHANTA RANAJIT K.
Published: January 2023

The field experiment was conducted during Kharif season of 2018 at NDRI, Karnal to study the influence of various sources of potassium on soil microbial population, enzymatic activities and yield of fodder crops. The experiment was laid out in the split-plot design with 16 treatment combinations and replicated thrice. In the main plot treatment, two fodder crops, viz., maize (Zea mays) and sugargraze (Sorghum bicolor L. × Sweet sorghum × Sorghum sudanese L.), were included while potassium treatments were executed under subplot treatment. The results revealed that, application of K50 + KSB + 2% KNO3 had a significant influence on biomass production and 30.3 and 22.4% green and dry fodder yield, enhancement was recorded over control. Soil microbial biomass carbon (MBC) was not significantly affected by fodder maize and sugargraze crops at 30 DAS and harvest. However, potassium application had significant influence on soil MBC and a higher values (167 and 185 µg/g dry soil) were recorded with K25 + KSB + 2% KNO3 treatment at 30 DAS and harvest over control, respectively. The soil enzymatic activities dehydrogenase (17.4 and 21.9 µg TPF/g soil/day) and phosphatase (55.4 and 72.8 µg PNP/g soil/hr.) and microbial population counts viz., bacteria (17.12 × 106 and 27.45 × 106 CFU/g soil), actinomycetes (28.2 × 105 and 36.2 × 105 CFU/g soil) and fungi (12.8 × 105 and 18.3 × 105 CFU/g soil) were also remarkably influenced with potassium treatments and found significantly higher at 30 DAS and harvest respectively over control under application of K25 + KSB + 2%.
Influence of land leveling and planting pattern on productivity, water use efficiency and economic of sorghum (Sorghum bicolar)
Authors:   Department of Agricultural Engineering, Navinchandra Mafatlal College of Agriculture, Navsari Agricultural University, Navsari-396450, Gujarat, India, KUMARI REENA
Published: January 2023

This study was conducted at Engineering farm, Navsari Agricultural University, Navsari, India, during winter 2016-17 using sorghum crop (Sorghum bicolar) to examine the effect of three land leveling (control or unleveled, conventional land leveling and leveling with laser guided land leveler) and three planting systems (ridge and furrow, double row bed planting and triple row bed planting). The laser guided land leveler significantly improved the growth attributes of sorghum as compared to the control whereas the growth attributes were recorded highest under double row bed planting. The highest yield attributes were recorded in laser guided land leveler. The best results of sorghum yield attributes were recorded under double row bed planting. In land leveling, laser guided land leveler significantly improved yield of sorghum (grain and fodder) as compared to control. Whereas, maximum sorghum yield was obtained under double row bed planting over rest planting system. The soil moisture distribution, water saving and water use efficiency were improved under laser guided land leveler with double row bed planting over rest of the treatments. The highest gross return, net return and benefit: cost ratio were obtained under laser guided land leveler with double row bed planting over rest of the treatments.