Submissions

Author Guidelines

In the magazine La Calera, research and extension results, publications, academic activities, meetings and other experiences of professionals and groups working in agricultural and environmental sciences in Nicaragua and beyond our borders are disclosed.

With the purpose of promoting greater participation of teachers-researchers, students, professionals and institutions related to agricultural and environmental sciences and to speed up the process of publishing and printing the magazine, the following guidelines have been considered that must be observed by the collaborators:

Open access policy. La Calera magazine encourages the exchange of knowledge by allowing free and immediate access to its content. Their publications are protected and shared under the terms of the Creative Commons license with the attributions of Recognition, Non-Commercial and Equal Sharing.

Arbitration System. The arbitration system is external and the type of review a is double blind, so the reviewers are not aware of the authorship of the writing and the author (s) do not know the reviewers. The evaluation is based on criteria defined by the magazine.

Plagiarism Detection The Turnitin system is used to obtain a report of similarity or plagiarism detection. This system allows to know if the work includes information from other investigations without due recognition of copyright.

Of content. The purpose of the magazine La Calera is to contribute to the technical scientific development of the agricultural and environmental sector of Nicaragua by disseminating the results of research conducted by UNA teachers and collaborators and to the national and international projection of the National Agrarian University. The magazine hosts works of varied themes and at different levels (basic, applied and basic - applied),

Articles about scientific-technical aspects are welcome, they can be written from the perspective of a specific discipline or with a multi-interdisciplinary vision. Topics in the articles may include opinions, forums and debates on innovative practices, new technologies, farming and farm systems, agro-forestry, community forestry, NRN management, livestock in its various components, veterinary medicine, socio-economic evaluations, development rural, among others.

Of the authors. The author can be any person or legal or corporate figure and is solely responsible for preparing and submitting the articles in full, including text, tables, figures (graphics), photos and other illustrations. Articles must be unpublished and in exceptional cases, adapted versions of previous publications. The author must accompany his articles with a letter requesting publication.

The magazine is not responsible for the opinions and statements expressed by the authors in its pages. The ideas of the authors do not necessarily reflect the point of view of the institution.

Of the articles. Works in electronic format, prepared in Word program (indicating the respective version) and through the Windows operating system or compatible systems are accepted. Writings must be submitted in double space with regulatory margins, with numbered pages and with an indication of the order of the tables, figures (graphics), photographs, and illustrations they contain. Each chart, graphic or illustration should have its own legend.

Proposals must be identified with the author's name (names and surnames), affiliation, ORCID number (https://orcid.org/) and email.

Of other forms of publication. All articles to be published in the journal must be sent to the main editor diep@ci.una.edu.ni or roberto.larios@ci.una.edu.ni  in electronic format, according to the specifications in the previous point. They must be presented in a single space with margins of 2.5 cm on each side, and accompanied by quality graphic material, original paintings and figures.

Of the structure. The writings - depending on gender - must be between one and 10 pages in length (includes the abstract, abstract and bibliographic references). The length of the articles will be considered by the editorial committee and it will be this committee who will decide their publication, even if the work is divided for successive publications of the magazine.

The margins on the pages of the writing should be 2.5 cm on all four sides. The pages must be ordinally numbered (1, 2, 3 ...). The sheet size should correspond to the letter design (21.59 cm by 27.94 cm). Type and size of the letter: Times New Roman, 10. The abstract, abstract, titles and notes of figures and tables, as well as bibliographic references with font size nine.

Of the style. It is recommended to use simple language, short titles, subtitles, short paragraphs and avoid using long subordinate sentences.

The author of the article is responsible for the content of the article. The writing must be clear and contain no spelling, grammar and punctuation errors. The technical committee is not responsible for spelling, grammar and punctuation corrections. The document will be received and accepted by the editorial committee and returned to the author for final adjustments, either in a manner or to check the accuracy of arithmetic, statistical, numerical data, cited texts and bibliographic references.

Of the pictures and figures. All pictures, figures, illustrations, etc., can be made through cameras, artists, scanned, photographic reduction, or made in electronic sheets and calculations. Each table, figure or illustration must be made on a separate sheet or interspersed in the text or content, these should not duplicate information. Literal symbols can be used to clarify any information and the exact value of p (value of p) for levels of statistical significance.

The tables must be in editable format, without horizantal lines and grayscale. The font is Time New Roman size nine. In the case of the tables, in most cases do not use grids; header and closing lines only. The font size for the content is nine.

Of the genders. The genres defined by the magazine correspond to:

Technical report. Present and discuss results of research and trials for practical application. It brings new elements to the reader in a summarized way, following the structure indicated. The maximum length of the text is 10 pages.

Technical note. It is an informative advance on the preliminary results of investigations. It is provisional or initial information. You can emphasize or deepen topics of interest, emerging or haste. Maximum extension of six pages.

Review or Analysis Article. It consists of a short analysis of what has been published or carried out in specific topics of agricultural sciences, natural resources or environmental sciences to date, a region or in the country, with the purpose of defining the current state of it. Follow a chronological order or its stages of development. It usually highlights the progress, changes, contradictions and trends of the subject. The maximum length of the text is 10 pages.

Forum. Space dedicated to the discussion and analysis of the aspects that characterize the agrarian systems, in a summarized and well-founded way. Maximum extension of four pages.

Communications They aim to present cases of interest that can lay the groundwork for other studies. Maximum length of four pages in a single space and must contain bibliographic citations and figures or tables that reinforce the information.

Report. Brief article that seeks to give an idea of ​​the progress achieved in an investigation or work and also the beginning or conclusion of a project, in terms of a certain period of time. It can refer to the stages of research, without describing in detail the work procedure and its future management. Maximum extension four.

Publications Review. Space dedicated to the presentation of the most recent publications, bibliographic reviews, abstracts and abstracts of thesis. Maximum extension of a page.

News. General information on training events, meetings, conferences, seminars, workshops and particular aspects of research projects. Maximum extension of a page.

Use of measures. The units of measurement that correspond to the metric system should be used, since it must respond to the use of the international system of measurements (SI). If a local unit is used, an international equivalence unit, e.g., 10 mz (7.03 ha) should be placed in parentheses. To consult the SI please visit the page:

http://www.cem.es/cem/es_ES/metrologia /sistemaunidades_basicas.jsp?op=sistemaunidades_basicas

Of the content of scientific articles. Articles must contain the following aspects:

Title. You should use a clear, short title that does not exceed 15 words and reflects the content of the text. The title should be centered, written in lowercase letters with letter size 11.

Authors Start with the name of the main author, write the names and surnames without academic degrees and separate the authors using commas, then, in separate line indicate academic degree, affiliation or academic dependence of work or study. Enter ORCID number and emails. The list of authors is located immediately after the title and aligned to the left with font size 10.

Summary. Abstract in Spanish and English (abstract) must be included, use a single paragraph, with a maximum of 300 words each, in which the why and how the study was done is expressed. The summary should include the most important aspects of the work: its justification and importance, methodology and the most relevant conclusions, supported by specific quantitative or qualitative results of the research. In the case of a description of some species (animal or plant), it must be accompanied by its respective scientific name and the descriptor. The information in this chapter should be consistent with that presented in the other chapters of the article.

Keywords. They are located immediately below the last line of the summary. They can be short words or phrases (between four and eight). They can be phrases and their objective is to facilitate the bibliographic search in computerized databases or publications that collect the condensed article (Abstracs). Words that identify the article should be selected. These keywords must be different from those that appear in the article title

Abbreviations. The meaning of all abbreviations that appear in the text must be stated. It is recommended to make an alphabetical list of abbreviations or the most common ones used in the writing, some terms may be abbreviated in the text and should not necessarily be included in the list of abbreviations for example (etc., i.e, e.g.). There are some abbreviations that are the domain of the scientific community, therefore, it is not necessary to include them in the list.

Introduction. Clearly indicate to the reader the importance of the topic, the justification of the research and the relevant bibliographic background that support the hypotheses and the objectives set. That is, it should be clearly stated why and for what the research was done, as well as what published information exists in this regard. This means that there will not be a specific chapter of literature review, but that it will be presented in the introduction.

The background should be supported with recent bibliography, so that the current level of the subject is known. Only bibliographic citations, fundamentally published (course notes, mimeographed information, or articles under review) will not be accepted. The bibliographic background must be written in a consistent and orderly manner in relation to the subject of the article. Avoid writing in the form of "reference lists" as well as "multiple references" to reinforce a single concept that is often too general, and precise and specific use of the references cited must be made (see this section on bibliographic references). At the end of the introduction, the purpose and objectives of the work should be described.

Materials and methods. The materials and procedures used, the measures and units of the variables, as well as the statistical treatment, if any, should be described. It is necessary to provide sufficient information on each variable, so that any researcher can repeat the study. The information in this chapter must be consistent with the objectives set. Write down the models and brands of the instruments used (including country of manufacture). Laboratory methods must also be sufficiently described to be able to reproduce them; if they are common, it is sufficient to indicate the bibliographic reference.

Results and Discussion. The facts derived from the methodology will be presented, arranged in a logical and objective way, with the help of tables and figures (photographs, drawings or graphs). The results information must be presented in a clear and understandable way, without resorting to the repetition of data in tables and figures.

It is not enough to present results in the form of figures, but it is necessary to interpret them based on clear, objective and impartial reasoning. In addition, its significance should be discussed according to its similarity or contrast with those published by the authors. The possible causes of such differences should be discussed and options for future studies raised. In this chapter you can add new bibliographical references that were not included in the introduction; or, incorporate sub-chapters of suggestions or recommendations.

In this section the author must check his hypotheses. Consequently, it is important that the discussion be based on the results and that both are consistent with the objectives and methodologies described in the respective chapters. Extensive explanations to numerical differences that are supported by statistical evidence or to variables not measured in the investigation (giving rise to speculation) should be avoided. In any case, the explanatory or speculative explanations will be valid in the discussion, provided that they are duly supported by bibliographical references or by clear and correct reasoning, but without occupying more paragraphs than the discussion of the results themselves.

Conclusions. Indicate categorically, briefly and precisely the specific contributions to knowledge supported by the demonstrable and verifiable results of the work, not from outside research. No conclusion should be argued or based on assumptions. Do not list the conclusions or use abbreviations, but complete terms, so that the reader does not have to resort to other parts of the text to understand them. There must be consistency with the information presented in the summary.

Bibliographic references. This section consists of the list in alphabetical and chronological order of all references cited in the text. References must have complete information and be submitted according to APA (American Psychological Association) standards.

Bibliographic references must contain the following information:

PRINTED DOCUMENTS Author: surname (s) and initial (s) of the name). /Year of publication in parentheses). / title of the work and subtitle, if any, separated by a colon (in italics). / edition: as of the second edition, it is abbreviated with (ed.) (lowercase and goes in parentheses). /Publication place. /editorial.

BOOKS: Surname, initial of the name. (year of publication). Book title: Sub title (edition from the second). City of publication: Editorial.

Bendaña, G. (1998). Problemas ecológicos globales: ¿el principio del fin de la especie humana? (2a. ed.). Managua, Nicaragua: ARDISA.

 Tapia, H. (1986). Producción artesanal de semilla de frijol común de buena calidad. Managua, Nicaragua. Instituto Superior de Ciencias Agropecuarias.

BOOK CHAPTER: Surname, initial of the name of the author of the chapter. (year of publication). Chapter Title In initials of the name, followed by the last names of the editor, Title of the book (pages used). City of publication: Editorial.

Radosevich, S. R. (1988). Methods to Study Crop and Weed Interaction. IN: M. A. Altieri & M. Liebman (Eds.), Weed Management in Agroecosystems: Ecological Approaches (pp. 121-143). Boca Raton. Florida. CRC Pres, Inc.

 Salazar C, D., Munguía H, R. (2010). Estrategias para la elaboración e implementación de la curricula del diplomado en sistemas de calidad en la producción de café con responsabilidad ambiental, social y empresarial. En F. Alemán., H. Medrano., A. Norgren., A. Reyes. y S. Scheinberg (Eds.). Innovaciones en las universidades nicaragüenses: casos exitosos. (pp 163-171). Managua, Nicaragua. Consejo Nacional de Universidades, Universidad Nacional Agraria.

THESIS: Surname, A., and Surname, A. (Year). Thesis title (thesis, master's or doctoral thesis). Institution Name, Place

Jarquín. M. F. (1991). Aspectos bioecológicos de las malezas presentes en la finca experimental La Compañía (Tesis de grado). Universidad Nacional Agraria, Managua, Nicaragua.

PERIODIC PUBLICATIONS Author surname (s) and initial (s) of the name. /publication date. /article title. / magazine title. /volume. / number if it is a separate paging magazine. / pages, if it is an illustrated newspaper or magazine that deals with various topics, p. or pp. before the number or numbers on the page. If it is a magazine, only page numbers are indicated without putting p. or pp.

SCIENTIFIC MAGAZINE ARTICLE: Surname, Initial Name. (year). Article title. Magazine Name, Vol (No.), initial page - final page of the article.

Larios-González, R. C., Salmerón-Miranda, F. y García-Centeno, L. (2014). Fertilidad del suelo con prácticas agroecológicas y manejo convencional en el cultivo de café. La Calera, 14(23), 67-75.

 Liebman, M., Corson, S., Rowe, R. J. and Halteman, W. A. (1995). Dry bean responses to nitrogen fertilizer in two tillage and residue management systems. Agron. J. 87, 538-546.

ELECTRONIC DOCUMENTS

E-BOOK: Surname, Initials author name. (Year of publication). Book title in italics. Retrieved from resource URL.

Gómez, W. (2001). Los avatares del sujeto y la pulsión. Recuperado de http://www.psicoanálisisvirtual.com

PERIODIC PUBLICATION ARTICLE WITH DOI: Surname, initial of the name (s). (Year of publication). Title of the magazine article. Name of the magazine. Vol. (No.), pages. DOI

Jiménez-Martínez, E., y Rugama Lovo, I. (noviembre, 2013). Dinámica poblacional de insectos coleópteros rastreros asociados al marañón (Anacardium occidentale L.) en León, Nicaragua. La Calera, 13(21), 68-75. doi: https://doi.org/10.5377/calera.v13i21.1636

ONLINE MAGAZINE ARTICLE: Last Name, Initial Name. (month year). Article title. Name of the Magazine, Vol. (No.). Recovered from http://www.xxx.xxx

Alemán Zeledón, F. y Lovo Jerez, S. M. (2017). Prácticas y acciones de investigación y extensión presentes en el currículo de la Facultad de Agronomía, Universidad Nacional Agraria. La Calera, 17(29). Recuperado de http://lacalera.una.edu.ni/index.php/CALERA/article/view/309/333   

PERSONAL COMMUNICATIONS: Because they do not provide recoverable data, personal communications are not included in the reference list. Cite only in the text provide: The initials and last name of the issuer, as well as an exact date as possible.

Initials name. Last name of the issuer (personal communication, day of month, year).

R.C. Larios (personal communication, April 18, 2018) stated that his…

(A.N. Aragón, personal communication, September 28, 2018)

Quotes in the text. The textual citation is recorded using the author's last name, the publication date and the page cited in parentheses, for example (Bendaña, 1998, p.7). When the citation is indirect (the author's idea is mentioned, but it is not cited textually), the reference page is not placed. When there are more than two authors (up to five authors) the last names of all the authors are written the first time they are cited in the work, in subsequent citations use et al. Articles by the same author are cited chronologically (González, 2015 and 2016). Articles by the same author published the same year are cited alphabetically (García, 2018 a and b).

To deepen the correct way of citing and referencing through the use of APA standards, it is suggested to consult: http://www.apastyle.org/

Thanks. This section will be included if it is desired to give recognition to persons or institutions that advised or assisted the investigation; indicating the name of the institution where they work, as well as the form and extent in which the collaboration has taken place.

Annexes (when necessary). Tables, graphics, drawings, photos, etc. may be presented, which will be optional and it will be up to the editorial committee to take them into account at the time of publication of the article, especially when they are well explicit, clear and well founded.

Others. The headings or subtitles (MATERIALS AND METHODS, RESULTS AND DISCUSSION, etc.), must be written in capital letters, and centered. A second level can be used for subtitles, for this they are written in lower case, using bold and using period and followed for the content. The INTRODUCTION heading should not be stated as this section marks the beginning of the article.