Supplementary information
Anti-plagiarism at PJA is addressed on three levels:
authors sign a statement declaring that they are not infringing any copyright in the article,
reviewers are obliged to inform the editors of plagiarism (question in the review form),
the editors verify the submitted papers using the anti-plagiarism mode offered in the Grammarly premium software package.
Disclosure of conflict of interests
Authors declare a conflict of interest in submitting a paper to a journal.
Information about the absence or presence of a potential conflict of interests is included in the article. The declaration of conflict of interest is disclosed at the request of the persons concerned.
Processing of complaints and requests
The complaints and requests should be addressed to the PJA editorial secretary.
Responses are provided within 20 calendar days of the acknowledgement of receipt of the complaint/request.
Publication fees
Authors do not incur any costs for publication of an article in the Polish Journal of Agronomy. If these preferential conditions are changed, the fees will apply only to authors whose submissions are received by the editorial office after the date of the fee announcement on the journal's website.
Archiving the materials
The materials concerning published papers (submitted version, reviews, revised version) are retained in the editorial office for five years from the submission year and subsequently forwarded to the National Archives.
The unpublished manuscript materials are maintained in the editorial office for two years from the year of submission and then destroyed.
The texts of published articles are stored in the National Library repository.