Efeito simultâneo da deficiência hídrica e do alumínio tóxico no solo na cultivar IAC91-5155 de cana-de-açúcar

Sugarcane is a very important economic crop in Brazil. The effects of abiotic stresses cause negative reduction of the productivity in the sugarcane industry. In order to identify indicators of stresses tolerance, two physiological variables were evaluated, nitrate reductase activity and chlorophyll contents in young plants of sugarcane, cv. IAC91-5155. The simultaneous effect of abiotic stresses of high occurrence in Brazilian soils are, water deficiency and aluminum toxicity. The plants were submitted to three treatments of water availability (% field capacity, FC): no stress (70% FC), moderate stress (55% FC), and extreme stress (40% FC); and three acidity treatments in the soil (base saturation, V%): no acidity (V=55%), average acidity (V=33%), and high acidity (V=23%). The experiment was carried out in greenhouse, with 29.7 +/- 4.3 degrees C and 75 +/- 10% RH. The experimental design was in randomized blocks, in 3x3 factorial arrangement, with four replicates. After 60 days, nitrate reductase activity and chlorophyll contents were evaluated in the diagnostic leaf. The results demonstrate that the response of plants to a combination of drought and aluminum toxicity, similar to the conditions in many natural environments, is different from the response of plants to each of these stresses applied individually, as typically tested in the laboratory. The nitrate reductase activity can be used as a biochemical-physiological marker of water deficiency while chlorophyll contents can be used as a biochemical-physiological marker of both of them, water deficiency or aluminum toxicity in soil. Both parameters can not be as a biochemical-physiological marker for acclimation of young plants of sugarcane cv. IAC91-5155, under the combined stresses.

Reserva de cargos e empregos públicos a pessoas com deficiência: instituições federais de ensino no RN

With a focus on the need for effectiveness of fundamental rights of persons with disabilities, this dissertation held a scientific research to analyze the degree of implementation of reservation of positions and public jobs to people with disabilities in the Brazilian State, because the 1988 Federal Constitution expressly determined such a reservation in your article 37, VIII. Highlight that this subject is enough evidence, given the large number of open public competition in recent years in Brazil, as well as recent proposals to grant equal rights to blacks (Bill nº 6,738/2013). In addition, the wording the constitutional device comes fomenting heated discussions on the subject, which are flowing on the doors of the judiciary and are spicy because such protection Microsystem vulnerable group has several gaps in the regulation of this policy. However, the research produced, unlike other related theme, does not address the problem of inefficiency in its constitutional theory, that is, abstractly, but also focuses on a specific analysis of this ineffectiveness within Brazilian society, so that research based on a bibliographical analysis, plus a study case law, at the national level, as well as in field research, while case study, focusing on the technique of the analysis of everyday life, because it was believed that the degree of realization of the constitutional norm debated is not yet a satisfactory degree of effectiveness. Soon, the methodological procedures chosen confirmed such a hypothesis and contributed to the study of realization of the fundamental right to work of people with disabilities in Brazil, the light of a Constitutional State, proposing a constitutionally appropriate model the greater effectiveness of the constitutional norm studied

Deficiência hídrica agrava os sintomas fisiológicos da clorose variegada dos citros em laranjeira 'Natal'

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

A inclusão do aluno com deficiência mental no ensino médio: um estudo de caso

La défense d une école inclusive dans les forums internationaux du monde entier a stimulé l adoption de politiques éducationnelles d inclusion et la pratique d inclusion dans les écoles, de sorte à ce que la scolarisation des élèves aux besoins éducatifs spéciaux dans les classes comunes est devenue une réalité dans la majorité des systèmes d éducation. Et pourtant, l inclusion scolaire, au Brésil, avance à pas lents et pose d innombrables questions, notamment quand il s agit de l inclusion des personnes qui présentent une déficience mentale dans les niveaux d enseignement plus avancés. Basé sur ce fait, et tout en considérant que les études et recherches sur ce thème, au Brésil, sont centrées majoritairement sur l éducation enfantine et les séries initiales de l enseignement fondamental, cette étude se propose d analyser l inclusion d une élève ayant une déficience mentale, inscrite dans l Enseignement Moyen, dans une école appartenant au réseau d enseignement de l Etat, dans la ville de Natal RN. Pour répondre aux questions proposées dans cette étude nous avons fait appel aux méthodologies qualitatives, du genre Etude de Cas, et au cours de sa réalisation avons utilisé l interview demi-structurée et l observation libre dans l ambiance naturelle de l école. Ont participé de l étude, en plus de l élève qui présentait une déficience mentale, sa mère et deux segments de l école, desquels ont fait partie trois professionnels de l équipe administrative pédagogique et quatre enseignants. L analyse des données a mis en relief la résistence de l école à répondre au projet pédagogique d éducation inclusive, aspect qui a un rapport très étroit avec les spécificités de l Enseignement Moyen, la structure traditionnelle d un enseignement basé sur l idée d une classe homogène, et le bas niveau d attentes des éducateurs concernant les possibilités d apprentissage et de développement de l élève handicapée mentale. De surcroît, le manque de directives pour conduire les adaptations pédagogiques et du curriculum à l école ont rendu fragile l action des enseignants, dont le résultat est une pratique d intégration rudement malmenée. Au travers des points de refléxions suscités par cette étude, nous considérons que l inclusion des élèves qui présentent une déficience mentale doit être centrée sur une pratique pédagogique qui repousse l idée de soumettre tous les élèves à des procédures universelles cristalisées sur des pratiques imposées par les contraintes d homogénéisation, et qui, contrairement, puisse trouver à l école des conditions favorables au développement de chacun, au travers des processus d apprentissages formés par des instances de médiation et d interaction sociales

A Inclusão da pessoa com deficiência visual na UFRN: a percepção dos acadêmicos

A partir des deux dernières décénnies, des changements importants ont touché l éducation des personnes aux besoins éducatifs spéciaux. On est dans une quête permanente de leur inclusion dans les différents niveaux de l enseignement régulier. De ce fait, les institutions éducationnelles se confrontent avec le défi du changement, devant s adapter de plus en plus aux besoins de ces élèves et devenir plus récptives à l égard de tous. Malgré la lenteur de ce changement, cela favorise beaucoup l accès des élèves à des niveaux d enseignement que jamais on aurait supposés, tels que l enseignement supérieur. C est bien dans ce contexte qu au cours de l année 2002 des étudiants handicapés visuels ont accédé aux formations de Philosophie, Economie et Sciences Sociales de l Université Fédérale do Rio Grande do Norte. Cela nous a motivé à conduire une analyse, au cours de 2003, pour connaître de plus près ce processus d inclusion universitaires de trois étudiants handicapés visuels. Comme méthode nous avons utilisé l étude de cas, et l entretien comme instrument de collecte des données. Après l analyse, les résultats montrent bien que l inclusion a permis à ces étudiants de surmonter un tas de barrières, telles que l examen d accès à l Université (Vestibular), outre la chance de se socialiser et d être bénéficiaires d expériences qui, suscités dans un milieu universitaire, vont au-delà de l univers académique. Les collègues de ces étudiants, auprès desquels ils convivent, eux-aussi ont été les bénéficiaires, du fait qu ils ont eu l opportunité d apprendre ensemble les uns avec les autres, tout en respectant leur limitations et potentialités, mais en les appuyant et en les stimulant de mieux en mieux. Il faut reconnaître que plusieurs actions au sein de l Université envisageant l accès et la permanence de ces étudiants ont été couronnées de succès, mais force est de dire qu il y a aussi beaucoup de choses à faire en ce qui concerne : la préparation du corps enseignant et des fonctionnaires ; l orientation de la communauté plus élargie ; la chute des barrières pédagogiques et attitudinales, et surtout l appui humain et matériel indispensables au plein développement de ces étudiants

Acesso e permanência na universidade federal do rio grande do Norte sob o ponto de vista do docente e do estudante com deficiência Natal-RN

Inclusion of students with disabilities is a recent case that has been discussed in school contexts, but the current policy of inclusion for access and retention of students in higher education is still a problem face there is much to do, therefore, are incipient studies in which this student body is involved. Accordingly, what is happening is that the most studies deal with on these students and little is said about them. For inclusive education thus the institution should prepare to receive students, having as one of its premises their point of views about what actually experience aiming at promoting education for all. Therefore, this study deals with the process of inclusion of students with disabilities regularly enrolled in undergraduate courses at the Universidade Federal do Rio Grande do Norte - UFRN.They were used the assumptions of qualitative research enabled by the case study method and semi-structured interviews. It has been analyzed by guiding actions and teaching practices, under the views of disabled students and teachers, the conditions of access and permanence offered by UFRN. Twelve students with physical, visual, hearing disabilities participated and five teachers from the acedemic centers that in academic year 2008 taught to these students. For data analysis it was used the technique of content analysis. It was extracted two themes: access and retention of students with disabilities in UFRN, in which emerged the categories described and analyzed in the course of this work. The results show the difficulties of access and retention of students with disabilities within the UFRN, such as attitudinal, pedagogical and architectural barriers. However, as it has also turned out, initial advances in the quest for achieving more effective actions to guarantee access and permanence of these students in UFRN. It has concluded that the scope for the exercise of citizenship in the pupils with disabilities who need this Higher Education Institution has an inclusive education Project, wide and consolidated, for the actions undertaken by the Ministry of Education - MEC, by itself, are not guaranteed to all students due to mobility, autonomy and security. It has hoped this work will bring benefits for new studies to develop features that were located, but were not our focus, because then the UFRN may advance the inclusive process of disabled students

A recepção da criança com deficiência intelectual ao texto literário na educação infantil

The focus of this thesis is children's reception to literary texts starting from literary livelihood in an inclusive literary context, looking for the possible evidences that are present in the construction as reader/hearing of literature. Based on a study case, we search the ways of participation of a child (girl) with intellectual deficiency in situations of offering and reception of literary texts, looking for the understanding and explication of some aspects of her processing and the building up of an initial reader. The data were taken starting from observations in moments of reading and story-telling in the period from November to December/2008 and May to June/2009 in a public school of children education, in Natal- Brazil, in which there was a registered student showing intellectual deficiency associated to Down syndrome. As research tools we used: field diary, interview scripts and video recordings. The analyses were based on research from Amarilha (2001, 2006a, 2006b), Bettelheim (2007), Coelho (2008), Iser (1996), Jauss (1979, 1994), Luria (1990a, 1990b), Vygotsky (1991, 1993), Wallon (2007, 2008) amongst others. The research showed that although expressing little verbalization and limited levels of attention, body attitudes, movements and talks of the child under investigation, denounced engagement and rendition to the sonority of the texts shared. These data gives us traces that, under a mediating action, the child with intellectual limitation can turn into a reader/hearing subject of literature, developing a sensitive and a selective attitude towards the literary text. Amongst other aspects, we identified that (1) a conception of deficiency present through the school that recognizes his/her potential of developing and learning (2) the situation of sharing, that favours a relation with the texts through the other, and (3) the relevance of orality providing the semantic paths that help the child in the building up of meaning, presenting themselves as fundamental to her/his viewing of the literary text, and, therefore, the formation of the reader. Thus, recognizing her/his capacity and possibilities, we think it is important to guarantee to the child with intellectual deficiency, a space towards interaction with the fictional text in which the child can learn and live its ludic and interactive character, to enjoy its hearing abilities, benefiting, then, from the aesthetic experience lived, mainly, in collective situations mediated through the more experient reader and shared with her/his different pairs. The research shows yet that, looking after conditions that guarantee a comfortable environment to the story hearings in the classrooms that focus on children education, being aware of a selection and the prosody of stories, the didactic contract, the attention to individual reactions, enlarge the possibility of any child deficient or not to enjoy her/himself as reader/ hearing subject of literature, engaged in its richness and magic

O currículo escolar: uma análise na perspectiva da inclusão de alunos com deficiência intelectual

A mid the many transformations and advances that the contemporary society is going through, the right to education is a topic that does not end and becomes increasingly present, given the urgency of including students with disabilities in education. Given this new reality, schools are challenged to receive them with quality, and implement actions that promote favorable conditions for their development at school. Accordingly, it is fundamental the organizational restructuring of education to meet the specific needs of students. Thus, it is imperative that educational institutions defining the type of person who intend to form and the society proposing to build. These are aspects that precede any question, since the knowledge covered in the curriculum will contribute directly to the creation of human beings are involved there. Based on this theme, this assignment reports aspects of a survey of a local public school, located in Natal/RN, which deals with the analysis of the curriculum and its implementation in teaching practice in the classroom, before the inclusion of students with disabilities intellectual. Thus, to undertake a study of case with five professionals at school, involving documentary analysis and observation of the curriculum of the pedagogical practice of teachers in the classroom, as well as conducting an interview with all stakeholders. To this end, the data analyzed shows that, although the right of citizens with disabilities is guaranteed by constitutional law, the school, locus of this study, have not realized the extent of conquest. Does not recognize the fact of being in school and learn together with others is also a right of persons with disabilities. Thus, while your resume is to present a progressive vision, believed to be open, concerned with the selection and organization of content, with flexibility in defining the goals, with the search for diversification of the procedures adopted, as well as the planning activities teaching and learning based on the level of student learning, this is not effective in teaching practice, either through ignorance of the guidelines defined either by lack of knowledge about the proposal and an inclusive curriculum can provide answers to all educational students, including those with intellectual disability

Concepões e práticas pedagógicas de professoras da educação infantil na inclusão de alunos com deficiência

This research focuses on inclusive in childhood education. Its purpose was to investigate and analyze the conceptions and expectations of teachers of childhood education, childhood education center form Natal/RN, on the inclusion students with disabilities, school and pedagogical practices developed and implications for students learning. Theoric base of the cultural historic perspective, the search took by qualitative analysis of numbers form the case study method. It was used methodological procedures: documentary analysis, participant observation, field journal and semi structures interview.Three teachers participated in the survey of that school had student with disabilities in their classrooms. These teachers were called: Rapunzel, Snow white e Pretty. The teacher s nouns involved the refered kind of education. The data obtained from the observation indicated the regular school of childhood education provides educational practices that promote the participation and participation and development of students with disabilities, live situation that may create barriers to learning and to the development of these children. The analysing data of interview from Bardin content analysis (1994) was based in Cunha s studies (2001) Brun (2006, 2008), Mantoam (2006, 2008), Palacios, Paniagua (2007), among others. The dada showed that correlation and divergence of perceptions and expectations about the issues surrounding inclusion in childhood education. The results shaved that teaching strategies, affective ties, sensitivity and own routine of childhood education are factors that can promote inclusive proposal, but also needs a greater fulfillment individual differences of each child in order to their potentiality. The study also shaved that the negative of pedagogic support to teacher, the ignorance of them as guidelines and strategies that include the student s diversity, the importance having positive conceptions about the learning and development of student with severe learning disabilities and the need for a pedagogic training and of a collective work at school which everybody collaborates : parents, direction, coordination getting inclusive school. Believe that this study pointed relevant issues to be focus new research, since the theme is still lacking in study, therefore emphasize, the importance of conducting research that continuous this job

O brincar e a criança com deficiência física na educação infantil : o que pensam as crianças e suas professoras

The present study had the purpose of examining the disabled children s way of playing on everyday situations in the CMEIs (acronym in Portuguese for City s Early Childhood Education Center ) of Natal/RN, by watching and listening to three children and their teachers, trying to understand how the games existent in these contexts involve the different subjects of the learning process, and which contributions emerge for a valuable pedagogic work, capable of providing the children s inclusion in the Early Childhood Education. This qualitative investigation was built as a case study, collecting data through watching and interviews. Throughout the observations, it was indispensable to look into the different contexts of the school routine, to capture and analyze events that could answer to what was being studied. The accessibility conditions of the school spaces were also observed. The interviews made possible to extract from the subjects what they think and how they perceive themselves when playing. The acquired data were analyzed having as counterparts contemporary studies and theories about playing, childhood and school inclusion, and published documents from the Education and Culture Department that treat of this theme as the guiding axis of the pedagogic proposes aimed to the Early Childhood Education. The revelations of the research show that is necessary to put effort on the disabled children s playing inside the context of the Early Childhood Education, regarding the accomplishment of accessibility laws that treat of school spaces and providing of equipment and resources that respect those children s characteristics, as well as providing opportunities for initial and continued training for the teachers, under the perspective of inclusive education and playing

Educação inclusiva: práticas de professores frente à deficiência intelectual

The present work is a survey of pedagogical practices of teachers who experience the daily school with students with Intellectual Disability (ID) in their classrooms, considered inclusive. The study was conducted in academic year 2010 in a municipal school in Natal-RN, aimed at investigating the pedagogical practices developed by the participating teachers as well as its view of the front of Intellectual Disabilities students who are inserted in the initial years of Elementary School. In methodological choice, considering the nature of the phenomenon, we chose the qualitative approach and the case study method. The observation and semi-structured interview were used as procedures, which contributed to a significant collection of data in an attempt to answer the objectives. The study subjects were selected by convenience and were formed into two teachers from Elementary School I, linked to the public educational system, which volunteered to collaborate in this research. The analysis of the observations and of the speeches made possible build pedagogical considerations on the action with students with Intellectual Disabilities in a regular school. The results point to a practice covered with a traditional pedagogy, with a few adjustments, although there is an initial process of change, what we observe in the classroom and captured in the words, because, at various times, we saw an interest in developing a pedagogy of Freire. One aspect that caught our attention refers to the formative action at school for these teachers. We found its incipiency, because this does not happen in a systematic way at school. Throughout the years investigated, the teachers had no access to any form of training neither to any form of specialized monitoring. We realize that there is still a concept of Intellectual Disability that makes difficult to "see" this student as a human being having learning opportunities. The aspects that interfere in the formation hinder the development of a pedagogical practice that meets the uniqueness of its customers and promotes a truly effective school inclusion, consistent with social rights proclaimed in this century. We believe in the irreversibility of the inclusive process initiated a few decades ago and that obstacles to the practice of teaching students with ID are visible and possible to overcome if they are turned into challenges for all those who compose the school, the municipal education system and those who build public policies for inclusive education

Inclusão e deficiência: em busca das representações sociais na mídia impressa em Natal/RN

This thesis is the result of an extensive research on print media discourse on the inclusion of disabled people in society. Articles published in the newspapers Diário de Natal/O Poti and Tribuna do Norte from 1992 to 2002 have been analyzed. Beginning with the very same questions that moved Moscovici (1978) in his classic study La Psychalyse son image et son public , according to which the media play a predominant role in the formation and propagation of social representations as well as in the construction of human behaviors, we have chosen this mass media as our investigation field. Understanding the importance of the communication theory, we intend to associate it to the social representation theory, since communication, as an aspiration, relates to the fundamentals of all humanity (WOLTON, 2004, p. 56). Moreover, means of communication represent an important space for symbolic production and representational process, allowing the analysis of the circulating discourses on social inclusion and disability. Based on these questions, we have determined social representations present in print media on the subject to be our study object. This objective was elected due to the fact that the thematic of disability and inclusion is scarcely and sporadically found in journalistic speech. The research questions have been: which is the representation of disabled people s condition in print media? What changes have occurred during the analyzed period and which was the role played by print media in this process? The research corpus was composed of newspaper articles about various aspects concerning disability and of free word association by reporters. We have analysed: 1) graphical language promoted by the picture of the substances propagated in the period from 1992 a 2002; 2) free word association experiments carried out with reporters of both newspapers; and 3) texts published from 1996 to 1997 using the high-tech program ALCESTE (Contextual Lexical Analysis of a Set of Segments of Texts). The results revealed that the print media in Natal/RN refer to the topic in a discontinuous way, and depend on specific events to highlight disabled people s fight for their rights. Social inclusion is still a great challenge for these people in all levels. We believe that this incapacity to overcome all kinds of obstacles is established in a dialectic relation between society and the media: society remains silent (the manifestation of interest for the cause only attracts some people s or groups attention) and the media, which selects which information is to be broadcasted, gives no evidence to the issue. This representation may be noticed in the infrequency in which articles about the subject are published, as well as in the emphasis to sports, a more important issue for the media. An implication of this study is that a new perspective is opened for analysis and reflection: the Paralympics games as both an inclusive and a segregating social phenomenon. It would be beautiful to have all of us together!

Inclusão de estudantes com deficiência nas instituíções de ensino superior da cidade do Natal/RN:análise das condições oferecidas no processo seletivo vestibular

The number of disabled students, who have entered the university, in Brazil, since the beginning of this century, is undergoing a speed growth. It is a change that follows a global trend that spreads an inclusive education policy and that has had a profound impact on Brazil, with import results in field researches. This subject has been highlighted due to the significant amount of disabled students enrolled in college institutions (IES), although it is still modest the number of studies about it, especially in what matters the assistance given to the candidates to a university entrance examination. The aim of this paper is to investigate how effectively Natal s IES apply the rules established in Brazilian law concerning disabled students, especially MEC/GM Circular Warning n. 277/96, in what respects the conditions given to disabled students preparing to enter a college. The investigation followed a qualitative methodological approach with support on an exploratory study. The data recollection employed questionnaire, semi-structured interview and documental analyses, and the data have been organized and assessed following Minayo s (1996) stages. What concerns the results, it was observed that none of the ten colleges inquired confirmed to possess places exclusively to disabled candidates; six of them, however, offer Special Examining Board in the selection process of disabled candidates. Among eighteen college bills, only two of them offered specific information related to services and resources offered by IES to the candidates who ask for especial assistance concerning examination. During the interviews, four managers avowed the preoccupation in offering an equal selection process, but two of them proved not dominate the subject. In conclusion, the investigated institutions managers do not still seem to respect the rule that guarantees to disabled candidates equal conditions during all the process of the university entrance examination. With this work, we hope do help changing this focus and contribute to new studies on disabled persons studying for a degree

Inclusão da criança com deficiência na estratégia de saúde da família

The objective of analyze the shift of the working process of the ESF team in care of children with disabilities, from awareness-raising actions. It is a qualitative study, with the action-research method. Thirteen health professionals were involved from two teams of ESF unit area of the Unidade de Saúde da Família Dr. Chico Porto (UBSFCP) in Mossoró, from March to August 2011. Data were analyzed following the direction of freirean s thematic analysis. In the situational diagnosis of the current reality of CwD assistance in that UBSFCP, through participant observation and application of semi-structured interviews with professionals, we realize that despite these actions carry some assistance to the CwD, in practice few are used for inclusion and accessibility. The monitoring of the CwD is done through individual consultations by each team professional, home visits when possible, both ruled on the complaints and problems, with little solving in the used actions. Since the need for a change in the treatment model and training requirements as pointed out by professionals in the interview, then we decided to build the proposed of training suggested by the multidisciplinary team and put together collectively the achievement of this moment in all its phases. In the step of implementation (action), aspects related to the current situation in Brazil and Mossoró (Laws, policies and health care) for the CwD and CwD Assistance and their family in the ESF in the first two moments of the first training (action) were contemplate. On the second day we discussed the specialized care to CwD, contribution of the Handicapped Parents and Friends Association of Mossoró and in a second moment a workshop was held in which awareness for inclusion of CwD and actions of ESF were discussed. All these moments were discussed and collectively constructed. In the evaluation, we found that implementation (action) allowed to the professional the comprehension of new understandings about people with disabilities, on ways to include, guiding, caring, watching, and mainly to have a new vision on health assistance of the CwD, expanding assistance beyond clinical aspects and recognizing the educational aspects of the rights and duties of citizens and the inclusion of these children in the social spaces area. As difficulties, we face the need for some professionals to be absent to attend another job, solve personal problems, and little or no participation. Thus, during this action-research, the subjects were able to realize the importance of carrying out their practice to the quality of life for him and to the one they care

Influência de silicato e calcário na nutrição, produtividade e qualidade da batata sob deficiência hídrica

A aplicação de silicato de Ca e Mg pode diminuir a acidez do solo e aumentar a disponibilidade de Ca, Mg, P e Si às plantas. O Si, mesmo não sendo essencial do ponto de vista fisiológico, traz inúmeros benefícios para o crescimento e o desenvolvimento vegetal, especialmente sob estresse. Este trabalho teve por objetivo avaliar a nutrição, a produtividade e a qualidade de tubérculos e batata cultivada em solo corrigido com calcário ou silicato sob dois níveis de umidade no solo. Os tratamentos foram constituídos pela aplicação de calcário dolomítico ou silicato de Ca e Mg, visando elevar a saturação por bases do solo a 60 %, e por duas tensões de água no solo: 0,020 MPa (sem deficiência hídrica) e 0,050 MPa (com deficiência hídrica). O experimento foi conduzido em casa de vegetação, em vasos contendo 50 kg dm-3 de Latossolo Vermelho de textura média. O delineamento foi inteiramente ao acaso em fatorial 2 x 2, com oito repetições. A deficiência hídrica teve pouca influência na nutrição da batateira, porém reduziu a produção de tubérculos comercializáveis. O silicato de Ca e Mg proporcionou os mesmos níveis de correção do solo e de fornecimento desses nutrientes que o calcário dolomítico, além de maior disponibilidade de P e Si no solo e maior absorção desses elementos pelas plantas de batata, podendo ser utilizado em substituição ao calcário. O fornecimento de Si à cultura da batata, mediante a aplicação de silicato, proporcionou maior altura de plantas, menor acamamento das hastes e maior produção de tubérculos comercializáveis.