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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 0310-0351 - print
ISSN 2534-983X - online

Publisher: Agricultural Academy of Bulgaria
Editor-in-Chief: Prof. Maya Ignatova
Executive editor: Snezhana Besarabova
E-mail: bjas_sb@abv.bg
Web: http://www.agrojournal.org; http://journal.agrojournal.org

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 3 June 2019


An assessment of rurality in Italian farms using a quantitative approach

Nicola Galluzzo

Influence of the common agricultural policy on Bulgarian agriculture

Petar Borisov, Rezear Kolaj, Christina Yancheva, Svetla Yancheva

Monitoring of potato production and its forecast by 2020

Vladimir S. Osipov, Tatiana V. Skryl

Smart contracts for smart rural supply chains

Gunnar Prause, Ivan Boevsky

Index of localization of agricultural holdings and employees in the rural areas of the South Central Region for Bulgaria

Petar Marinov

Empowering partnering links as opportunities for development of the regions: can PPPs work in agriculture?

Rezear Kolaj, Myslym Osmani, Petar Borisov, Dubravka Skunca


Effect of sowing date on yield of winter wheat cultivars Grom, Asr and Kuma in Khorezm region

Lola Gandjaeva

Induction of total phenol and salicylic acid with Pseudomonas spp. suspension as indications increasing systemic resistance on vanilla plant

I. Ketut Widnyana, I. Ketut Sumantra, Ni Putu Pandawani, Putu Eka Pasmidi Ariati

Indigenous phosphate-solubilizing bacteria enhance germination in deteriorated rice seed

Purwaningsih, Radian, Widyatmani Sih Dewi, Bambang Pujiasmanto

Integrated cropping system of rice with oil palm: local and new varieties

Alridiwirsah, Erwin Masrul Harahap, Erwin Nyak Akoeb, Hamidah Hanum

Utilization of rice husk silicate extract to improve the productivity of paddy Ciherang cultivar

Budy Frasetya, Kundang Harisman, Dedi Sudrajat, Muhammad Subandi


Utilization of organic and bio fertilizers against root-knot nematode (Meloidogyne incognita) infecting faba bean (Vicia faba L.)

El-Shafeey I. El-Shafeey, Mohamed A. Abd-El-Hadi, Eman S. Hagag, Ghada S. Abu El-Naga

Parasitism preference of normal and irradiated host pupae of Bactrocera zonata, Saunders (Tephritidae: Diptera) and Bactrocera cucurbitae, Coquillett (Diptera: Tephritidae) by pupal parasitoid, Dirhinus giffardii, Silvestri (Chalcididae: Hymenoptera)

Muhammad Naveed, Rashid Ahmad Khan


Coefficients of heavy metal accumulation in forest soils

Diana Malinova, Ludmila Malinova, Kameliya Petrova, Biser Hristov

Plant nutritional potency of recent volcanic materials from the southern flank of mt. Merapi, Indonesia

Lis Noer Aini, Bambang Hendro Soenarminto, Eko Hanudin, Junun Sartohadi

Cover – management (C-factor) of the Petrohan Training and Experimental Forest Range

Dilyana Ilieva, Kamelia Petrova

Efficiency of windbreak forest belts for the cultivation of winter grain crops

Alexander Nikolaevich Sarychev, Yuri Nikolaevich Pleskachev, Elena Anatolievna Ivantsova, Nikolay Vladimirovich Onistratenko

Comparison of the ability of different plant species to reflect environmental pollution in Bulgaria

Valentina Lyubomirova, Veronika Mihaylova, Rumyana Djingova


Micromorphometric study of the small intestines in different post-hatch periods in bronze turkey (Meleagris meleagrisk gallopavo)

David Yovchev, Georgi Penchev, Dimitar Dimitrov, Kamelia S.-Yovcheva

Effect of complex phytobiotics on morphochemical characteristics of Cobb 500 cross mail broiler chicks

Vladimir E. Nikitchenko, Dmitry V. Nikitchenko, Vadim G. Plyuschikov, Ivan G. Seregin, Аlexander А. Nikishov, Ekaterina O. Rystsova

Discrepancy between plasma cortisol level and neutrophil-to-lymphocyte ratio in sheep during shearing

Penka Moneva, Ivan Yanchev, Marina Dyavolova, Dimitar Gudev

Functional activity of platelets in new-born calves of black-marked breed

Nadezhda V. Vorobyeva, Ilya N. Medvedev


The role of imaging anatomy in the contemporary anatomical studies of domestic rabbits in veterinary and agricultural science

Ömer Gürkan Dilek, Rosen Dimitrov, Kamelia Stamatova-Yovcheva


The effect of different flour extraction rates on physiochemical and rheological characteristics

Taha Rababah, Muhammad Alu’datt, Majdi Al-Mahasneh, Sana Gammoh, Mustafa Al-Obaidy, Tha’er Ajouly, Vaida Bartkute-Norkūniene


Indicators of a finger device for feeding sesame stems into harvesting machine

Stoyan Ishpekov, Nayden Naydenov, Rangel Zaykov

New solution – a skyscraper with integrated floor gardens, multi-storey panoramic elevators and aquariums filled with fluorescent algae.

Yanko Aleksandrov