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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
Address:
Bulgarian Journal of Agricultural Science
125, Tzarigradsko shosse Blvd., Block 1
1113 Sofia, Bulgaria
Print preparation: Ivo Nikov
Printing:Lazaron Print Ltd
Volume 29 Number 4 August 2023
AGRICULTURAL ECONOMICS AND MANAGEMENT
Opportunities for delivery of agri-enviromental public goods in Bulgarian agriculture through performance-based contracts
Kristina Todorova and Dimitre Nikolov
Dynamic capabilities for leading industries: proof of export commitment of chocolate products
Gyska Indah Harya, Nuhfil Hanani, Rosihan Asmara and dan Abdul Wahib Muhaimin
Rediscover of cities as vertical clusters for agricultural needs (objectives) and for specific care in a pandemic condition
Yanko Aleksandrov
Assessment of the EU market farms sustainability based on a composite sustainability index
Veselin Krustev
AGROCHEMISTY AND SOIL SCIENCE
Pot experiment to assess soil quality index and rice harvest index in sandy soil using Azolla microphylla and chicken manure
Jauhari Syamsiyah, Luthfi Shobibaturrohmah Afnani, Sudadi, Aktavia Herawati, Mujiyo
The Hazard of Soil Erosion and Sediment Yield Prediction for Krueng Mane Watershed in Indonesia
Annisa Dini Safira, Azmeri Azmeri, Eldina Fatimah, Asri Syahrial and Tuti Rahmawati
Application of sodium azide for chemical induced mutagenesis of proso millet culture (Panicum miliaceum L.)
Aiym Zeinullina, Aiman Rysbekova, Elmira Dyussibayeva, Irina Zhirnova, Nursaule Zhanbyrshina, Zhazira Zhunusbayeva and SvetlaYancheva
Agronomic performance and fiber quality of the new cotton varieties Tiara and Melani
Valentina Dimitrova
Investigation and restoration of land disturbed by industrial activity
Martin Banov
PLANT SCIENCE
Diagnostics and optimisation of mineral nutrition quality of pome fruit crops
Tetiana Maliuk, Pachev Ivan, Liliia Kozlova, Natalia Pcholkina and Liubov Pokopseva
Quality parameters of applicant tobacco variety Virginia 0842
Hristo Bozukov, Maria Kasheva, Margarita Docheva and Yovcho Kochev
A review of some cultivation practices affecting the nicotine content of tobacco grown in Bulgaria
Radka Bozhinova
PLANT GENETICS
The effect of salinity on chlorophyll levels in 20 sensitive and tolerant genotypes of wheat bread
Mehdi Zohdi Aghdam and Farzad Jalili
Phytosanitary state of pea agrophytocenoses under various methods of basic tillage
Oleg Bukin, Andrey Saveliev, Dvitriy Bochkarev, Aleksandr Nikolsky, Aleksandr Kuznetsov and Olesia Savelievа
Evaluation of the genetic diversity in broad bean (Vicia faba L.) accessions
Valentin Kosev and Natalia Georgieva
Fruit yield, water and nitrogen use efficiency of tomato under drip irrigation in unheated greenhouse
Galina Patamanska and Ivanka Mitova
Evaluation of soybean accessions (Glycine max L.) for pod shattering resistance at ripening
Sofiya Petrova, Stoyan Ishpekov, Naiden Naidenov and Stanislav Stamatov
Impact of summer green pruning on the phenolic content of grapes from Cabernet Franc cultivar
Ferihan Emurlova and Tatyana Yoncheva
ANIMAL SCIENCE
Effect of adding protected methionine to the ration on hematological indices and biochemical blood parameters in Awassi lambs
Abdulnassir Thanoon Alkhashab, Hanan Waleed Kassim and Thaer Mohammad Abdelalbaki
ANIMAL GENETICS
Effect of zinc methionine supplementation on biochemical and hematological indices of growing rabbits
Yevhen Dzen, Volodymyr Rosalovsky, Oksana Shtapenko, Olha Slypaniuk and Yuriy Salyha
Dynamics of leukocytes and cytokines after moderate altitude exposure in pregnant ewes with low and high hematocrit levels
Penka Moneva, Ivan Yanchev and Nikola Metodiev
Can Facial Expressions and Infrared Thermography Be Used to Measure Positive Emotions in Goats?
Nizar J. Hussein and Assel A. I. Al-Nakshabendy
Effect of altitude on some hematological parameters in two Bulgarian local sheep breeds depending also on their body condition score
Ivan Yanchev, Nikola Metodiev, Penka Moneva and Maya Ignatova
The Egg Production Efficiency Index (EPEI) as an economic indicator for measuring poultry egg production
Hristo Lukanov, Atanas Genchev and Todor Petrov
FOOD SCIENCE AND TECHNOLOGIES
Net energy and protein utilization along the “feеd with different protein sources – meat” chain in fattening female hybrid turkeis during the grower and finisher periods
Mitko Lalev, Dimo Penkov, Pavlina Hristakieva, Nadia Mincheva, Magdalena Oblakova and Ivelina IvanovaEffects of bread waste and Calendula officinalis inclusion on egg production and egg quality
Svetlana Grigorova and Dimo Penkov