Agronomy Courses Research Articles

Caracterização do perfil dos discentes dos cursos de Medicina Veterinária e Agronomia em relação ao consumo da carne suína e mitos relacionados

In Brazil, pork consumption is lower compared to the global consumption. Perspectives of sociocultural origin perpetuate the myths that surround pork, claiming it to be a fatty protein and the transmission of human cysticercosis. The objective was to characterize the profile of pork consumption and knowledge about the taeniasis-cysticercosis complex among students of Veterinary Medicine and Agronomy courses, verifying the possible aspects that interfere with consumption. A total of 137 students were interviewed. Variables such as price, flavor, and cultural aspects were the main reasons for the low consumption of pork by students, in addition to the myth that pork is involved in cases of human cysticercosis, which justifies actions with clarification to the population.

Context and Learning Style Aware Recommender System for Improving the E-Learning Environment

The learning management system (LMS) is an e-learning software that raised the interest of disparate learners’ groups. However, learners have difficulties in finding learning resources tailored to their preferences in the best way at the right time. Making the learning process more efficient and pleasant for learners can be achieved by using context and learning styles such as customizing aspects. This study proposes a new data-driven approach to retrieve learners' characteristics using traces of their activities based on the Felder-Silverman Learning Style Model (FSLSM). In this research, the traces of 714 learners who enrolled in three agronomy courses taught at IAV HASSAN II (winter session 2019, 2020, and 2021) were analyzed. Learners are categorized into clusters by their preference level for global/sequential learning styles, using an unsupervised clustering method. Then a classifier model tailored to our requirements was trained and based on the learner's learning style and their current context, a learning object recommendation list is proposed for them. The results revealed that the k-means algorithm performed well in identifying learning styles (LS) and the use of context features defined from the learners' adaptive close environments improved learning performance with an accuracy of over 96% given that most of the learners preferred a global learning style.

Application for evaluation of the uniformity of systems of pressurized irrigation

The evaluation and monitoring of the performance of irrigation systems are crucial in maintaining water efficiency and conservation of water and energy resources. Therefore, the objective of this study was to develop and validate an application for the coefficient of uniformity coordinators of pressurized irrigation systems. So, the UniIrrig® application was developed, using the integrated development environment Android Studio10 version 4.0.1, in JAVA language, with applicability in devices with the Android operating system. For quantitative verification, the same input values in the UniIrrig® application were also inserted in Microsoft® Excel 2010, in all uniformity conductors used in the application. For the qualitative analysis, together with the experience of the user, 68 students of the Agronomy course at the Federal University of Ceará (UFC) participated in tests in order to evaluate the perception of usability, design, usefulness, and general satisfaction of the tool. To validate the application in the field, a uniformity test was carried out on a center pivot in the municipality of Cascavel, Ceará state, with the aid of collectors (Kit Fabrimar) to deliver the applied depth and the consequent result of the distribution uniformity coefficient (DUC), of Hart (HDC) and weighted mean depth analysis. These values were compared to the results obtained in Microsoft® Excel 2010. The dynamic analysis of the data evolved in “r”= 1, thus providing perfect adaptation between the results obtained by the application and by Microsoft® Excel, finding an error equal to zero. In the qualitative assessment, 84.1% consider the application a good tool for coefficient determination. It is concluded that the UniIrrig® application, designed for the Android operating system, can be used to quantify the assessed irrigation uniformity coefficients.

Panorama da comercialização de flores e plantas ornamentais no município de Corrente - Piauí

The objective of this case study was to investigate the commercialization of flowers and ornamental plants in the city of Corrente, located in the extreme south of the state of Piauí. This study was born as a result of an activity developed in the Floriculture and Landscaping curricular component, in the Agronomy course. Therefore, a qualitative research and case study was developed. The information was collected through an interview, where the questions were previously formulated and structured by the students, based on the contents covered in the classroom. The information and data were analyzed and interpreted through content analysis, making it possible to understand the reality of the company. The investigation through the interview showed that the company is the only one that operates in the municipality and that it has a fixed clientele with a variable profile of consumers. Given the variety of commercialized plants, there is a production chain, which is related to wholesale and retail sales, as well as the supply of inputs. Knowing that the productive chain of flowers and ornamental plants is in all Brazilian states, it is extremely important to apply technologies and studies in the area. This is evidenced through the fruit that was born with the Podcast developed in the discipline, which aroused interest in students of the agronomy course, since they had not yet had contact with this agricultural branch. These results provide support for the development of more research related to the economic importance of floriculture. &nbsp

New Automatic Hybrid Approach for Tracking Learner Comprehension Progress in the LMS

Learning style is a significant learner-difference factor. Each learner has a preferred learning style and a different way of processing and understanding the novelty. In this paper, a new approach that automatically identify learners learning styles based on their interaction with the Learning Management System (LMS) is introduced. To implement this approach, the traces of 920 enrolled learners in three agronomy courses were exploited using an unsupervised clustering method to group learners according to their degree of engagement. The decision tree classification algorithm relies on the decision rules construction, which is widely adopted to identify the accurate learning style. As missing good decision rules would lead to learning style misclassification, the Felder-Silverman Learning Style Model (FSLSM) is used as it is among the most adopted models in the technology of quality improvement process. The results of this research highlight that most learners prefer the global learning style.

The pandemic and the lost dreams of a junior engineer

The pandemic and the lost dreams of a junior engineer

Ethnobotanical Survey of Medicinal Plants: Knowledge, Use and Origin

Medicinal plants play an important role in curing various diseases, so the aim of this work was to conduct a study on the ethnobotanical survey of medicinal plants with students from the agronomy course at the Federal Institute of Pará Campus Castanhal. The methodology used to carry out the study was an interview, guided by a semi-structured questionnaire. After the information collected, the systematization of the data was carried out, followed by using medicinal plants of mixed, diverse and common use as classification criteria. The results obtained were that the interviewees have considerable knowledge about medicinal plants, mentioning 48 species of plants used for the treatment of various diseases, with plants standing out for diseases with symptoms of cough, flu, inflammation and diarrhea, with different forms of preparation, among the most cited were decoction, tea, bath and juice. Despite the diverse knowledge about the use of species for medicinal purposes, this knowledge over time is lost and needs to be recovered through ethnobotanical study.

Phosphorus contents in the soil in function of the modes of application of phosphate fertilizer in two crops in succession

Tropical soils are naturally poor in phosphorus and, due to the strong interaction with mineral constituents, the ways of applying phosphate fertilizers can increase the efficiency of absorption by crops. The objective of this analysis was to evaluate the distribution of P at different depths depending on the application of phosphate fertilizer in wheat and common bean crops grown in a Dystrophic Red Latosol from Toledo, western Paraná. The work was carried out under field conditions at the experimental unit of the Agronomy course at the Pontifical Catholic University of Paraná (PUCPR), Campus from Toledo. The block design was used in the case, in a scheme of sub-subdivided plots in the space, the first factor being the application mode, the second local factor (lines and between lines), and the third-factor sampling depth (0 – 5, 5 – 10, 10 – 15, 15 – 20 cm), and collections were carried out at seven points in each plot, in two consecutive years. The first soil collection was carried out after the wheat harvest, with soil samplings being performed to quantify the amount of P added to the soil. The soil samples were collected at seven points per plot, four between the lines and three in the sowing lines, in a straight line in each plot, the same procedure was performed after harvesting the bean crop and the second collection was carried out after the bean crop harvest, repeating the analyses, using the Mehlich-1 method. Phosphate fertilizer application modes did not influence P contents in the soil. The highest P contents were obtained at 0-5 cm depth, decreasing along the sampled depths.

English

The main residue of iron and nickel mining is slag, a solid residue of low solubility and rich in magnesium silicate. A residue with potential use as a soil conditioner, however, it is still necessary to investigate whether its use brings impacts to the environment. Microorganisms are extremely sensitive to environmental changes, changes that can be used as environmental quality indicators. Among the organisms that act as microbiological indicators of soil quality, the activity of arbuscular mycorrhizal fungi stands out. With this, this study aimed to verify the mycorrhizal activity as a quality indicator under application of nickel iron mining slag as soil conditioner. The experiment was carried out in the greenhouses of the agronomy course and in the laboratory of agricultural microbiology of the Evangelical College of Goianésia. Magnesium silicate was supplied by Anglo American Mining Company, located in Barro Alto, Goiás. Agronomic and microbiological analyses were performed at the Evangelical College of Goianésia, Goiás. The experimental design used was completely randomized, arranged with five treatments and with five replications, where the treatments were composed of four doses of magnesium silicate: 9, 12, 15, and 18 g dm-3 of soil in addition to the control without application. Ten golden saw rice seeds were planted in 10-L pots. Soil analysis used in the experiment was performed to determine soil nutritional parameters. The application of iron and nickel mining slag does not influence the development of rice in the first application. The application of 9 dm³g-1 of iron and nickel mining slag soil positively influences mycorrhizal activity on roots and soil.   Key words: Mycorrhiza, magnesium silicate, stress, cerrado.

Horta comunitária como atividade lúdica para idosos institucionalizados

Objetivo: relatar a experiência da implementação de uma horta comunitária, em uma Instituição de Longa Permanência para Idosos, no intuito de promover um ambiente ecossocial acolhedor e uma atividade lúdica para o bem-estar de idosos. Método: trata-se de relato de experiência sobre a implementação de uma horta comunitária em uma Instituição de Longa Permanência para Idosos, localizada na cidade de Fortaleza, Ceará, Brasil, realizada em 2018. A atividade foi desenvolvida por meio de integração interdisciplinar entre os Cursos de Graduação em Enfermagem e Agronomia de uma universidade pública. Resultados: a experiência vivenciada permitiu conhecer a personalidade dos moradores da instituição, histórias e aspirações destes. Conclusão: a implementação da horta comunitária na instituição contribuiu de forma significativa para o bem-estar dos idosos, rompeu a monotonia e o sentimento de abandono vivenciados no dia a dia dos idosos institucionalizados e viabilizou o aproveitamento de um espaço inutilizado.

Professional perspective of the labor Market by trained stdents and motivational factors ins the evasion of graduates from the agronomy course in Nova Xavantina

The University causes changes in the lifestyles of academics, during graduation and after graduation. Many do not work in the area that was graduated and some even do not finish college, today it is a reality observed in all higher education courses and some cases intensified due to the size of the hours and other peculiarities. In view of this premise, we sought to identify the influence of the dynamics of the Agronomic Engineering Course at the State University of Mato Grosso, New Xavantina campus on why students drop out of college, and feedback from those who have already graduated. Evaluate the professional perspective of the labor market by trained students. To observe the motivational factors in the avoidance of graduates in the course of agronomy. Analyze the trajectories of professional development throughout the university experience that lead to different expectations and ways of preparing for the job market. A questionnaire was applied through innovative teaching approaches using Web 2.0 tools, in particular Google Docs, "forms". The questionnaire link was provided by email, SMS, Facebook, Instagran and WhatsApp to the target audience. It is concluded that the evasion in the University of Mato Grosso State Nova Xavantina campus occurred for three reasons: the agronomy course was the second choice of the academic, and the lack of knowledge of the course and support of family members. Based on the perspectives of post-graduates, one can conclude that: (1) the greatest difficulty was to obtain employment, (2) about 81% are working in their training area, (3) the agronomy course was the first option of the trained students, that is, they began the course aware of the difficulties, and yet they persevered and concluded the course.

Satisfação de discentes no Ensino Superior: uma análise a partir do curso de Agronomia do Instituto Federal Goiano

Este estudo tem como objetivo avaliar a satisfação percebida pelos alunos do curso de agronomia de dois campis do Instituto Federal Goiano em relação ao curso de Agronomia. A identifica­ção dos principais componentes da Satisfação Geral dos estudantes foi feita com base em estudos ante­riores. Os dados foram coletados por aplicação de questionários a 149 estudantes do curso de do curso de agronomia e analisados através das técnicas estatísticas Análise de Cluster Hierárquica e Regressão Linear Múltipla, para estabelecer de forma não paramétrica, uma vez que os construtos não apresentaram distribuição normal, quais dos construtos estudados representam a satisfação geral dos estudantes. Os resultados apon­taram que o Envolvimento do Professor e Interação entre o Professor e o Estudante, são os construtos determinantes para a satisfação geral do estudante, demonstrando nesse estudo que o papel do professor se mostra de grande importância na sensação de satisfação por parte do aluno do curso de agronomia.

STRENGTHENING OF LANGUAGE SKILLS IN UNIVERSITY STUDENTS

Introduction: english language proficiency in Spanish-speaking countries has gone from being considered a luxury in the last century to a current need for professional growth. Objective: To consolidate the skills in the English language proficiency of university students. Methods: an emerging program was developed in 143 university students in the first to fifth semesters of the forest engineering and agronomy courses of the Faculty of Natural Resources of the Polytechnic School of Chimborazo. The intervention consisted of initially identifying the students' English language proficiency skills and, based on the results obtained, an emerging program was applied to increase English language proficiency. The McNemar non-parametric test was used to identify changes in English language management skills. Results: average age of 22.62 years with a predominance of students between 18 and 21 years (71.33%), male (51.75%), urban origin (60.14%) and without previous studies of English (69.23%). At the beginning of the investigation, low skill levels predominated, which increased mid-level after the application of the emerging program. Writing and speaking were the skills that showed the most progress, while interpretation proved to be the ability with the most discrete results. Conclusions: the application of the emerging program raised the level of skills of the students of the forest engineering and agronomy careers of the Faculty of Natural Sciences, related to the management of the English language

Saúde e segurança no trabalho em unidades armazenadoras de grãos no Estado do Mato Grosso do Sul

O trabalho em unidades que recebem, processam e armazenam produtos agrícolas na forma de grãos e sementes é de alto risco para os operadores, visto que muitos destes desconhecem a gravidade dos problemas que podem vir a acontecer nestes ambientes. Dessa forma, objetivou-se com a realização deste trabalho apresentar experiencias com a realização de dois projetos de extensão universitária, que tinham como foco principal a difusão de informações e expansão da cultura de segurança em atividades de trabalho, na área de armazenagem de produtos agrícolas. O primeiro projeto foi realizado com o intuito de promover discussões acerca da saúde dos trabalhadores e orientação de segurança a operadores da Unidade Armazenadora Copasul, do munícipio de Deodápolis-MS. Para tal a equipe executora das ações de extensão produziu materiais didáticos como folders, banners, apresentações, compilado de vídeos, e todos foram usados em atividade de palestra realizada pela equipe, com alunos do curso de Engenharia Agrícola e Agronomia, da Universidade Federal da Grande Dourados. Também foi elaborado e construído pela equipe um protótipo de silo, ferramenta didática usada em simulações de acidentes como soterramento e engolgamento. No segundo projeto foi elaborado questionário estruturado para o levantamento de informações sobre o conhecimento do assunto junto aos colaboradores de unidades armazenadoras do Estado do MS. Após a aplicação dos questionários, via online, os dados obtidos foram avaliados e discutidos juntamente com a equipe e serão importantes para outras atuações e difusão do tema. A realização de ambas os projetos de extensão foram de grande valia para a equipe executora e o grupo pretende prosseguir com atividades futuras na área com vistas para a expansão da cultura de conscientização e prevenção de acidentes nos trabalhos agrícolas.

Perception about Environmental Education in Agronomy Course in Agricultural Sciences Center of the Federal University of Alagoas

Environmental education is an essential instrument for the formation of a critical conscience in society as a whole. The formation of the agronomy course must be intrinsically linked to environmental issues, since the activities developed by the future professional have direct consequences to nature, so the decisions must have as pillars, the understanding of environmental issues and the promotion of the sustainability in agroescosystems. The present research had as aim to perform a diagnosis on the environmental perception of students and professors of the agronomy undergraduate course of the Agricultural Sciences Center of the Federal University of Alagoas (CECA – UFAL). This work was carried out through a qualitative research, where the data collection was based on a questionnaire, with a sample of 95 students and 15 teachers. Therefore, a deficient and inconsistent approach regarding environmental education in the agronomy course of the CECA-UFAL, thus it is recommended that more disciplines be inserted for environmental education, not only in the course of agronomy, but in all the course of the area of agrarian sciences.

English

The success of species implantation depends on the quality of seeds used initially. It is therefore important to ascertain that the seed is in an excellent physical, physiological, sanitary and nutritional condition as this will determine the genetic cultivars’ potential. Thus, this research work studied the relationships between physical and physiological variables in the seed. Samples were analysed and grouped according to their similarities. A total of 2,586 black oat seed samples were studied, 2,229 were samples of the seed production process and 357 were samples of their own use, and analyzed in the laboratory of the Agronomy Course of Unijui, Ijui, RS. Pearson's linear correlation coefficients, multicollinearity analysis, track and cluster analysis was determined by the agglomerative method of the most distant neighbor. The normal seedlings showed the highest correlation of negative signs, and direct effect with dead seeds. The multicollinearity analysis indicated a severe condition number, influenced by the percentage of pure seeds and number of other seeds per number. Three groups of samples were identified in the seeds produced according to the national seed system and four groups in seeds for their own use. The most representative groups presented the highest physical and physiological qualities. The variable, dead seeds, was the one that influenced the germination of normal seedlings most. Key words: Avena strigosa (Schreb.), multicollinearity, path analysis, grouping.

FROM AMINO ACIDS TO ENZYMES: A PROPOSAL USING DIDACTIC GAMES TO REVIEW THE CONTENT OF PROTEINS

INTRODUCTION: Biochemistry is a discipline offered in graduation courses. In general, the students define Biochemistry as “complex and extensive”, since, in most cases, a broad content is ministered in a short period of time. The consequences of this context may be reflected in the lack of interest by the students. Thus, the use of alternative methodologies presents potential to improve this situation. OBJECTIVES: Develop and implement educational games about protein content to review and arouse students' interest in the discipline. MATERIALS AND METHODS: The educational games were made from available materials and low cost. The games were applied in extracurricular schedules in Biology, Biotechnology, Biomedicine and Agronomy courses of the Federal University of Uberlândia in the second half of 2015. All of this games count with the presence of a mediator to solve questions and correct mistakes that can appear. DISCUSSION AND RESULTS: Three educational games were created: "Amino Game 2.0", "Memo Protein" and "Race of Enzymes" which addressing the content of amino acid ionization, structure and function of proteins and enzymes, respectively. "AminoGame 2.0" is based on the correct assembly of structures of amino acids, dipeptides or tripeptides in according to conditions described on card game randomly selected by the player. "Memoprotein" is a memory game in which the player must correctly answer a question about protein to have the right to turn the cards of the game. Finally, "Race of Enzymes" is a board game in which the player must correctly answer questions about enzymes to have the right to advancing squares on the board. The application of three games showed good acceptance among students. CONCLUSION: “Amino Game 2.0", "Memo Protein" and "Race of Enzymes" were considered to be effective tools in the teaching of Biochemistry.

FUNÇÃO DAS ARISTAS SOBRE CARACTERÍSTICAS DA SEMENTE DE TRIGO

The purpose of this study was to determine the influence of the presence of awns in wheat ears on the physiological seed quality, and its effect on some grain characteristics and seedlings produced under field conditions in the northwest of Rio Grande Sul State. The experiment was conducted at the Experimental Field of the University of Cruz Alta Agronomy Course, Cruz Alta, northwestern region of Rio Grande do Sul, in soil Oxisoil. The experimental design was a randomized block design with plots of four rows of 5m long, cm spacing of 0,17m and six replications. Four treatments were evaluated: with awn, without awn, removal of 100% of the awns and removing 50% of the awns. The results showed that awned wheat genotypes have thousand seed weight superior to awnless wheat genotypes or genotypes with removal of awns.

Diversidade de aranhas de solo em cultivos de milho (Zea mays)

Studies carried out on the diversity and abundance of spiders may provide a rich information base on the degree of integrity of agricultural systems where they are found. In transgenic corn, Bacillus thuringiensis proteins are expressed in great amounts in plant tissues and may affect arthropod communities. Thus, the main goal of this work was to identify the spider diversity associated to transgenic and conventional corn hybrids. Pitfall collections were performed in conventional and transgenic corn plots during the 2010/2011 crop season, at the experimental field of the Agronomy Course of the University of Cruz Alta, RS. A total of 559 spiders were collected, from which 263 were adults and 296 young individuals. In the transgenic corn 266 spiders were collected and in the conventional one 293. Eleven families were determined and the adult individuals grouped in 27 morphospecies. Families with the largest number of representatives were Linyphiidae (29.70%), Theridiidae (5.72%) and Lycosidae (5.01%). The most abundant morphospecies were Lyniphiidae sp. with 77 individuals, Erigone sp. with 40 individuals, Lynyphiidae sp. with 33 individuals, Theridiidae sp. with 21 individuals, Lycosa erythrognatha with 14 individuals and Lycosidae sp. with 13 individuals. The Shannon Diversity Index was higher for transgenic corn (H” =1.01) in February and smaller (H’=0.54) in the December collection in the conventional corn, and the Margaleff Richness Index showed higher diversity in December and February for the conventional corn (M=18.3), and smaller diversity for the transgenic corn in November (M=11.3). Families were classified in five guilds; two weavers: Irregular web builders and sheet web builders, and three hunter guilds: Night soil runners, ambush spiders and aerial night runners. The relative proportion of the spiders morphospecies found in this research, as well as the guilds, suggest that this group may not have been affected by the genetically modified corn.

SABERES DOCENTES NO PROJETO FORMATIVO DO ENGENHEIRO AGRÔNOMO NO CURSO DE AGRONOMIA DA UFC EM FORTALEZA

The aim of this study is to analyze the teaching knowledge practiced in the formation project of the Universidade Federal do Ceará (UFC) agronomy course. What gave rise to the study was the opportunity to penetrate a little explored professional environment, namely academic formation. A qualitative research, in the form of a case study, was undertaken with a descriptive approach, using a semi-structured interview as a tool. According to 81% of the interviewees, the results highlighted the fact that the formation has technical leanings and that the project does not impart the necessary professional skills to meet the current emerging challenges and demands of the rural environment.