INSTRUCTIONS TO AUTHORS
Papers will be considered for publication if they make original contribution towards the promotion and understading of agriculture in the tropics. Review papers are published only by invitation.
Papers already published or under consideration elsewhere, other than as an abstract of an oral or poster presentation, cannot be accepted. Manusripts should be written in English and submitted in duplicate to:
Horticultural Crops Research and Development Institute
P.O.Box 11, Peradeniya, Sri Lanka.
The manuscript should be typed in double space on good quality paper with wide margin. Although a rigid format is not insisted, it is usually conveninet to divide the papers into sections such as Abstract, Key words, Introduction, Materials and Methods, Results and Discussion, Conclusions, Aknowledgements and References.
The title should be concise and appropriately informative for retrieval by modern searching techniques.
Running Title :
A short title, not exceeding 45 characters, should be provided for the running title.
This should state concisely the scope of the work and the principal findings, and should be suitable for direct use by
abstracting journals; should not exceed 200 words.
Key Words :
A maximum of 6 key words chosen from the title, abstract or body of paper should be provided. They should be in alphabetical order and separated by commas.
Introductory material including a review of the literature should not exceed what is necessary to indicate the reason for the work and the essentail background.
All references in the text must be listed in alphabetical order by the authors’ last name at the end of the paper. Do not number references. When including articles that are “ in press” give the name of the journal and anticipated date of publication. Follow the style shown below;
Nagarajah, S, B.M. Nizar, M.M.M. jauffer and S. de silva.1983. Zinc as a limiting nutrient for rice grown in the mid country wet zone of Sri Lanka. Trop. Agric. 139:97-74.
Book (identical author and editor):
De datta. S.K. 1981. Principles and practices of rice production. John Wiley and Sons, New York. 618p.
Books (edited by someone other than author of article):
Ladd, J.N. 1985. Soil enzymes. In Soil organic Matter and Biological Activity. Eds. D. Vaughan and R.E. Malcolm. Pp. 176-221. Martnus Nijhoff Publishers, Dordrecht, The Netherlands.
Piper R.D. 1963. Production and chemical composition of arctic tundra vegetation and their relation to the lemming cycle. Ph.D Thesis. Univ. of California, Berkely. 95p.
References should be cited in the text by the last name of the author and year ( Perera, 1988): in the case of two authors,both should be mentioned (Perera and Abeykoon,1988) but with three or more, only the name of the first author plus et al. (Perera et al., 1988) should be given.
Unless absolutely necessary citation of personal communications and unpublished data should be avoided. No editorial responsibility can be taken for the accuracy of the references; authors should check that all references in the text appear at the end of the paper and vice versa and that names dates correspond in the two places. When journal articles are listed, journal name should be abbreviated in accordance with the “World List of Scientific Periodicals”,
Butterworths Scientific Publications, London.
Tables and Figures:
Tables and Figures should be given separately i.e. not inserted in the typed text. Tables should be numbered in the order in which they appear in the text and accompanied by a title. They should be arranged having regard to the dimensions of the printed pages, and the number of columns should be kept to a minimum. Long headings to columns should be avoided by the use of explanatory footnotes. Only in exceptional circumstances will presentation of essentially the same data in tabular and graphical form be permitted; where adequate, the latter form should be used. Short tables can frequently be incorporated into the text as a tabulation or sentence.
Illustrations. both line drawings and halftones, should be numbered in the order in which they appear in the text. Each figure must be eited in the text.
Photographic prints for half -tone reproduction must be of highest quality with a full range of tones and good contrast. A set of copies should be sent along with separately typed captions for submission to referees. Each figure should be labelled on the back with name of the author, title of paper and number of figure using sofr lead pencil. Approximimate position of tables and figures in the text should be indicated in the left margin. Data presented in tables or figures should not be repeated in the text.
Units and Symbols:
The recommended SI (System International) units and symbols should be used as far as possible.
These should be carefully typed with symbols in alignment and adequately spaced. At least two clear lines should be left above and below all displayed equations. If special symbols must be handwritten, they should be inserted with care and identified by pencilled notes in the margins.
Tropical Agriculturist offers the opportunity to publish research notes not exceeding three printed pages (including tables and figures). They might be preliminary results, description of new cultivars,description of new or improved techniques or equipments.
PROOFS AND REPRINTS
Proofs will be sent to authors for correction. Major alteration of the original text should be avoided. Corrected proofs should be returnet to the Editor without delay. Failure to do so will delay publication.Contributors will receive 25 reprints free of charge.