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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: Ivo Nikov
Printing:BPS Ltd

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Note to contributors

Volume 27 Number 2 April 2021

AGRICULTURAL MANAGEMENT

Synergy between the biological factor and the institutional environment in agriculture

Plamena Yovchevska


Integration GIS and multicriteria analysis critical land farming in Welang watershed

Maroeto, Rossyda Priyadarshini and Wahyu Santoso


Competition power of Turkey’s tomato export and comparison with Balkan countries

Adem Aksoy and Haluk Caglar Kaymak


Sustainability status of paddy cultivation on marginal peat soils in Indonesia

Muhammad Faiz Barchia, Andi Ishak, Satria Putra Utama and Ridha Rizki Novanda


AGRICULTURAL ECONOMICS

Challenges in the development of the wine industry: an exploratory study

Sanja Jelić Milković, Krunoslav Zmaić and Tihana Sudarić


A meta-analysis and model calculations of economic indicators in suckler cow herds

Jindrich Kvapilik, Ludek Barton and Jan Syrucek


SUSTAINABLE AGRICULTURE

Convergent analysis of waste water practices among EU countries

Bozhidar Ivanov and Hrabrin Bachev


Physiological and agronomic assessment of tolerance to drought of perspective breeding lines common winter wheat

Radoslav Chipilski and Zlatina Uhr


ECOLOGICAL FARMING

Effect of mycorrhization treatment on the yield and quality of highbush blueberries in conditions of replantation

Zofia Zydlik, Piotr Zydlik, Dariusz Kayzer and Robert Wieczorek –

PLANT SCIENCE

Adaptability and breeding value of soybean varieties of Poltava breeding

Liudmyla Biliavska, Yurii Biliavskiy, Olexandr Mazur and Olena Mazur


In vitro propagation of Vaccinium corymbosum L.

Maria Georgieva and Violeta Kondakova


Effect of seed treatment by selenium and silicon on the absorption of heavy metals by barley plants under soil drought

Yuriy Ivanovich Enakiev, Anastasia Andreevna Lapushkina, Vsevolod Mikhailovich Lapushkin and Igor Vasilievich Vernichenko


PLANT GENETICS AND GENOMICS

Using the GY* trait interaction in ecological field trials to evaluate grain yield of wheat varieties

Todor Gubatov, Nikolay Tsenov and Ivan Yanchev


Variability of meiotic recombination and cytological parameters in F1 tomato hybrids under extreme environmental conditions

Aleksey Samovol, Sergey Kondratenko and Еlena Mogilnaya


PLANT PATHOLOGY AND PROTECTION

Evaluation of pepper (Capsicum annuum L.) accessions for infestation by pests

Vinelina Yankova, Velichka Todorova and Dima Markova


Effects of some herbicides on the leaf apparatus of young vine (Vitis vinifera L.)

Neli Prodanova-Marinova, Yordanka Belberova and Emil Tsvetanov


Reaction of the new grain sorghum variety Maxibel to soil herbicides

Stanimir Enchev and Rumen Bazitov


AGROCHEMISTRY, SOIL SCIENCE AND ECOLOGY

Approach to reporting heavy metal, metalloid and toxic element contamination in land evaluation of reclaimed soils

Martin Banov


ANIMAL GENETICS AND GENOMICS

Influence of mc4r mutations in traits of tested Danube white purebred pigs

Katya Eneva, Apostol Apostolov, Radka Nedeva, Atanas G. Atanasov, Bogdan Szostak and Radostina Stoikova


FISHERIES AND AQUACULTURE

Intracohort cannibalism in European catfish (Silurus glanis L.) larvae under controlled rearing conditions at different stocking densities

Vasilka Krasteva and Maria Yankova


FOOD SCIENCE AND TECHNOLOGIES

Comparative study on the quality characteristics of yoghurt produced by caw milks with different somatic cells count

Ertugrul Bilgucu, Galin Y. Ivanov, Tatyana B. Balabanova and Ivelina V. Ivanova


Phytochemical constituents of pressurized liquid extract from Ziziphus jujubа Mill. (Rhamnaceae) fruits and in vitro inhibitory activity on α-glucosidase, pancreatic α-amylase and lipase

Dora Trifonova, Ivanka Stoilova, Andrey Marchev, Petko Denev, Galena Angelova, Anna Lante and Albert Krastanov


Investigation of the flux, selectivity and concentration factor during ultrafiltration of goat’s milk

Siyka Kodinova and Mariya Dushkova


AGRICULTURAL ENGINEERING

Parameters of the herbicide spraying system for oil-bearing rose production

Snezhan Bozhkov


AGRICULTURAL EXTENSION

An analysis of the capacity building needs of rice farmers in Kwara State, Nigeria

Kemi F. Omotesho, Adeniyi F. Akinrinde, Ajoke O. Kayode and Deborah A. Olabode