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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: Snezhana Besarabova
E-mail: bjas_sb@abv.bg
Web: www.agrojournal.org

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

Print preparation: Photonika - Ivo Nikov
Printing: Avangard Ltd.

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Volume 25 Number 5 October 2019

SUSTAINABLE AGRICULTURE

Estimation of biophysical and biochemical variables of winter wheat through Sentinel-2 vegetation indices

Petar Dimitrov, Ilina Kamenova, Eugenia Roumenina, Lachezar Filchev, Iliana Ilieva,Georgi Jelev, Alexander Gikov, Martin Banov, Veneta Krasteva, Viktor Kolchakov, Milena Kercheva, Emil Dimitrov, Nevena Miteva


Exogenous spraying of plant’s resistance inducers improves yield and sugarcane quality

Ronaldo da Silva Viana, Bruno Rafael de Almeida Moreira, Lucas Aparecido Manzani Lisboa,Paulo Alexandre Monteiro de Figueiredo, Sergio Bispo Ramos, Samuel Bispo Ramos, Gustavo Henrique de Oliveira Dias, Leticia Cunha Moreira, Mariana Teixeira Spotoni, Camila Regina Silva Baleroni Recco


Expression profiling of DNA methyltransferase genes in wheat genotypes with contrasting drought tolerance

Valya Vassileva, Irina Vaseva, Anna Dimitrova


Improvement of water management project by correcting irrigation water requirement in farmer participation and optimization

Anongrit Kangrang, Haris Prasanchum, Ratana Hormwichian, Rapeepat Techarungruengsakul, Ratsuda Ngamsert, Nanthawat Phookinghin, Jirayut Wangthken


Ecological-economical aspects of the production of alternative kinds of fuel in agricultural enterprises Ukraine

Andrii Doronin, Lesia Кarpuk


Appraisal of shallot farming sustainability in Brebes Regency, Central Java Province, Indonesia

Dina Martha Susilawati, M. Syamsul Maarif, Widiatmaka and Iskandar Lubis


AGRICULTURAL MANAGEMENT

Analysing the impact of subsidies on the Albanian agriculture sector

Merita Gecaj, Edmira Shahu (Ozuni), Drini Imami, Engjell Skreli, Attila Jambor


Strategic analysis of the creative business development of processed agricultural products in Surabaya, Indonesia

Erna Haryanti, Dwie Retna Suryaningsih, Nuhfil Hanani


Characteristics and problems of dairy cattle farms in Bulgaria

Tsvetana Harizanova-Metodieva, Maya Ignatova and Tatiana Ivanova


The mutual relations between food product prices and consumer behavior of population in Azerbaijan domestic agricultural market

Sugra Humbatova, Natig Hajiyev


AGRICULTURAL ECONOMICS

Plant proteins in the focus of bioeconomy

Plamena Yovchevska


An analysis of farm income in Romanian regions using FADN dataset

Nicola Galluzzo


The demand for ornamental plants in Poland after its integration into the EU: a quantitative approach

Dawid Olewnicki, Lilianna Jabłońska, Hanna Dudek


Level business competitiveness of beef cattle fattening in smallholder farms

Hastang, Sitti Nurani Sirajuddin, Rahmat Mandasini


Wood products export performance in Bulgaria and Romania

Nahanga Verter


ECOLOGICAL FARMING

The beneficial effects of bio-fertilizers combinations and humic acid on growth, yield parameters and nitrogen content of broccoli grown under drip irrigation system

Duraid K. A. Al-Taey, Mohammed J. H. Al-Shareefi, Abbas K. Mijwel, Abdel Razzaq Al-Tawaha,Abdel Rahman Al-Tawaha


Evaluation of the influence of additives from different types of compost on the soil properties

Metodi Mladenov


The influence of biofertilizers and organic fertilizers on productivity, quality and storing of cabbage (Brassica oleracea var. capitata L.) in the South-East of Kazakhstan

Hriska Boteva, Bekzat Turegeldiyev, Temirzhan Aitbayev, Birzhan Rakhymzhanov, Akbope Aitbayeva


PLANT SCIENCE

Allelopathic soil activity in the rotation of some forage and technical crops

Plamen Marinov-Serafimov, Stanimir Enchev, Irena Golubinova


Evaluation of salt tolerance of Panicum miliaceum L. collection at the germination stage in conditions of induced sodium chloride salinization

Aiman Rysbekova, Elmira Dyussibayeva, Irina Zhirnova, Aiym Zhakenova, Abilbashar Seitkhozhayev, Carina Makhmudova, Svetla Yancheva, Nursaule Zhanbyrshina, Gulden Kipshakbayeva


Adaptability and productive potential of initial material from grass pea (Lathyrus sativus L.)

Valentin Kosev, Viliana Vasileva, Zeki Acar


Fabiana imbricata Ruiz et Pav. micropropagation

Pervin Halkoglu, Svetla Yancheva, Atanas Pavlov


Temperature and light quality influence seed germination of two biquinho pepper cultivars

Maria Ines Diel, Oscar Valeriano Sanchez Valera, Marcos Vinicius Marques Pinheiro, Leonardo Antonio Thiesen, Daniela Meira, Patricia Jesus de Melo, Diessica Leticia Junges, Braulio Otomar Caron, Denise Schmidt


Variability of morphological characters of collection accessions of perennial ryegrass (Lolium perenne L.)

Aneliya Katova, Jelyazko Vulchinkov


PLANT GENETICS

Agronomic characteristic, genetic variability and heritability of mutant samosir shallot M1V2 generation irradiated by gamma rays

Mariati Sinuraya, Rosmayati Rosmayati, Hasanuddin Hasanuddin, Diana Sofia Hanafiah


PLANT PATHOLOGY AND PROTECTION

Evaluation of collection of pepper (Capsicum spp.) resources for resistance to Verticillium dahliae Kleb.

Katya Vasileva, Velichka Todorova, Stojka Masheva


VETERINARY SCIENCE

Efficacy of single-dose Mycoplasma hyopneumoniae vaccine for the control of enzootic pneumonia in pigs

Roman Pepovich


FOOD SCIENCE AND TECHNOLOGIES

Comparison of chemical composition and physicochemical properties of meat of males and females of African catfish (Clarias gariepinus Burchell, 1822)

Iwona Chwastowska-Siwiecka, Marlena Baryczka, Jacek Kondratowicz, Rafał Winarski


AGRICULTURAL ENGINEERING

The effect of different blades on the performance values of a pruning chopper used to improve soil properties

Murad Canakci, Mehmet Topakci, Davut Karayel, Bora Agsaran, Onder Kabas and Mete Yigit