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Bulgarian Journal of Agricultural Science (BJAS)® is a peer-reviewed, open access, online and print journal, issued bimonthly. It has been published in English since 1995. It publishes original research papers, review articles and brief communications from all areas of agricultural science including agricultural economics, agroecology, agrochemisty and soil science, crop science, plant protection, animal science, veterinary medicine, fisheries and aquaculture, agricultural engineering, food technologies and other related areas.

ISSN 1310-0351 - print
ISSN 2534-983X - online

Publisher: Agricultural Academy of Bulgaria
Editor-in-Chief: Prof. Dr. Martin Banov
Executive editor: Estel Dimitrova
E-mail: bjas_sb@abv.bg
Web: www.agrojournal.org

Bulgarian Journal of Agricultural Science
125, Tzarigradsko shosse Blvd., Block 1
1113 Sofia, Bulgaria

Print preparation: Ivo Nikov
Printing:Lazaron Print Ltd

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Note to contributors

Volume 30 Number 2 April 2024


Marketing for rural tourism – strategy and realisation in Bulgaria

Neviana Krasteva and Desislava Alexova

Production Management Decision Making and Risk Analysis of Beef Cattle Breeders in Buru District, Maluku Province, Indonesia

Adolf Bastian Heatubun, Poerwaningsih S. Legowo and Michel Johan Matatula


Impact of belt and road initiative on supply chain resilience and sustainability in the agri-food industry

Nikola Zivlak and Nicolas Quilfen


Soil Bacillus spp. – a potent cell factory for antimicrobials against phytopathogens

Natalija Atanasova-Pancevska

Statistical dependencies of fertilizing with humate fertilizers on productive and qualitative indicators of forage from meadow legume crops

Katerina Churkova and Boryana Churkova

Potential of nitrogen-fixing purple non-sulfur bacteria isolated from acid sulfate soil in improvements of soil property, nutrient uptake, and yield of pineapple (Ananas comosus L. Merrill) under acidic stress

Tran Ngoc Huu, Bui The Vinh, Le Chau Tu, Do Thi Xuan and Nguyen Quoc Khuong

Thousand kernel weight of durum wheat (Triticum durum Desf.) over a 30-year period as affected by mineral fertilization and weather conditions

Stefka Stefanova-Dobreva and Angelina Muhova

Effect of increasing doses of nitrogen on nutrient uptake by oilseed rape (Brassica napus L.) in years with different weather conditions

Mária Vicianová, Ladislav Ducsay and Peter Hric

Degradation of dual-species biofilms using hydrolytic enzymes produced by Bacillus subtilis 170 strains

Ivo Ganchev and Georgi Dzhelebov

Mapping of existing incentives for soil health business models in EU – methodological approach

Dimitre Nikolov, Ivan Boevsky, Martin Banov, Ekatherina Tzvetanova and Krasimir Kostenarov


Observation of mulberry flowers and fruits invaded by Ciboria carunculoides with resistance of mature seeds

Fangrong Zhu, Liangqian Wei, Bingxing Wei, Rongpei Bin and Xiaoqing Chen


Overview of resistance and prevention to Fusarium head blight in barley

Nadezhda Sertova and Maya Ignatova


Evaluation of the stability and adaptability of yield in triticale varieties using non-parametric methods

Nikolay Neykov

Application of fluorescence spectroscopy in the determination of varietal differences after potato harvesting

Emilia Nacheva and Vanya Slavova

Direct reseeding of degraded grass stands with various fodder species and genotypes of perrennial legumes

Galina Naydenova and Magdalena Petkova

Physiological and agronomical traits evaluation of soybean accessions, part of the National collection at IPGR – Sadovo

Sofia Petrova and Radoslav Chipilski

Agronomic performance associated with the incidence of frost on wheat cultivars in Brazil

Diego Nicolau Follmann, Mateus Vendrame, Guilherme Bergeijer da Rosa, Emilso Damm dos Santos and Anderson Crestani Pereira

Mineral content of wheat bread enriched with chestnut and rosehip flour

Denka Zlateva, Dana Stefanova, Rosen Chochkov, Petya Ivanova


Impact of partial and total replacement of urea nitrogen instead of soybean meal protein on reproductive performance of Awassi lambs

Safwan L. Shihab

Hypopharyngeal glands development of worker bees (Apis mellifera L.) during supplemental feeding with various types of sugar syrups

Svilen Lazarov, Ivanka Zhelyazkova, Petya Veleva and Maria Hashinova

Heritability of some productive traits in animals from Ile de France sheep breed

Tanya Ivanova, Radostina Stoykova-Grigorova, Milena Bozhilova-Sakova and Deyana Gencheva


The potential nutritional value of root dry mass from sugar beet, fodder beet and table beet

Stanimir Enchev and Tatyana Bozhanska

An integrative approach to developing new tomato varieties with elevated fruit antioxidant content

Bojin Bojinov, Silviya Vasileva, Daniela Ganeva, Vasil Georgiev and Atanas Pavlov

Traditional Bulgarian Artemisia flavored wines – a review

Vanya Boneva, Dessislava Dimitrova, Teodora Ivanova and Neli Grozeva