ISSN: 1313 – 8820 (print)
ISSN: 1314 – 412X (online)
Indexing: AGRIS (FAO), CABI, EBSCO-host, ROAD and DOAJ
About the journal
Agricultural Science and Technology /AST/ was founded in 2009 by Faculty of Agriculture, Trakia University, Stara Zagora, Bulgaria.
It’s is published in English in one volume of 4 issues per year, as a printed journal and in electronic form.
This issue in 2025 is printed with the financial support by Contract No. 06-НП6/73 from 10.12.2024, financed by Bulgaria National Science Fund (BNSF), grant "Bulgarian scientific periodicals".
NEW Articles
Contemporary Studies of Soils from Plovdiv District in the South-Central Planning Region, BulgariaP. Ivanov, I. Lyubenova Agricultural Academy, Institute of Soil Science, Agrotechnologies and Plant Protection “N. Poushkarov”, Sofia, Bulgaria (Manuscript received 23 February 2026.; accepted for publication 31 August 2026) e-mail: ipli@abv.bg Abstract. The paper summarises contemporary research on soils that have been formed under natural conditions or have been influenced by anthropogenic activity. The need to periodically obtain new data to […]
Technological characteristics of the white wine grape variety KristalenT. Yoncheva, R. Mincheva, G. Dyakova Agricultural Academy, Department of Vine Selection, Enology and Chemistry, Institute of Viticulture and Enology, 5800 Pleven, Bulgaria Agricultural Academy, Department of Selection of Field Crops and Vines, Institute of Agriculture and Seed Science “Obraztsov Chiflik”, 7000 Rousse, Bulgari (Manuscript received 05 June 2026; accepted for publication 27 August 2026) e-mail: t_ion@abv.bg Abstract. During the […]
Slope-position effects soil hydraulic and physical properties in Northeastern Nigeria.M. Dantani, P.R. Musa, J.D. Nahum Department of Soil Science and Land Resources Management, Faculty of Agriculture and Life Sciences, Federal University Wukari, Taraba State, Nigeria. Department of Soil Science, Faculty of Agriculture, Modibo Adama University of Technology Yola, Adamawa State, Nigeria. (Manuscript received 4 December 2025; accepted for publication 14 July 2026) angyudantani@gmail.com Abstract. Understanding how soil slope […]
Influence of organic fertilization on the growth and productivity of red raspberry (Rubus idaeus L.) under combined abiotic stressS. Atanasova Department of Plant Sciences, Faculty of Agronomy, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 26 June 2026; accepted for publication 30 August 2026) e-mail: stanislava.atanasova@trakia-uni.bg Abstract: The present study evaluates the impact of organic fertilization on the biometric and productive indicators of the ‘Polka‘ raspberry cultivar under the influence of combined abiotic stress – transplant shock, […]
Identifying the main drivers of grain yield in winter wheat: An integrative analysis across multi-environment conditionsGeorgi Raykov Department of Crop Science, Agricultural University Plovdiv, 4000 Plovdiv, Bulgaria Manuscript received 6 April 2026; accepted for publication 30 August 2026) e-mail: georgi.raikov.dzi@gmail.com Abstract. Grain yield formation in winter wheat is a complex process governed by the interaction of multiple yield components, whose relative contributions are difficult to quantify under multi-environment conditions due to strong […]
Investigation of the relationship between selected biochemical markers in seminal plasma and sperm motility parameters of frozen-thawed ram semenK. Kotzev, S. Sevov, G. I. Kalaydzhiev, D. Abadjieva Institute of Biology and Immunology of Reproduction “Acad. Kiril Bratanov”, Bulgarian Academy of Sciences, blvd. 73 Tsarigradsko Shose Street, 1113, Sofia, Bulgaria Faculty of Agriculture, Trakia University, 6000, Stara Zagora, Bulgaria (Manuscript received 10 June 2026; accepted for publication 31 August 2026) e-mail: krasimir.kotzev9@gmail.com Abstract. The objective of this […]
Simultaneous estimation of yield and protein content in barley using derived traits and near-infrared spectroscopyB. Dyulgerova Agricultural Academy, Institute of Agriculture – Karnobat, 8400 Karnobat, Bulgaria (Manuscript received 29 April 2026; accepted for publication 26 August 2026) e-mail: bdyulgerova@abv.bg Abstract. This study aimed to establish relationships among grain yield, protein content, and derived traits and indices, as well as the possibility of using near-infrared (NIR) spectroscopy for simultaneous selection of grain yield and […]
Variability and interrelationships among seed metric, gravimetric and hydration attributes of Cowpea (Vigna unguiculata [L.] Walp) seedsAdeniji, O.T Peter, J.M and Olutayo, G Department of Crop Science and Horticulture, Federal University Oye Ekiti, Nigeria Department of Crop Science and Horticulture, Adamawa State University, Mubi Nigeria (Manuscript received 19 March 2026; accepted for publication 25 August 2026) e-mail: waleniji@gmail.com Abstract. Seed dimensional and gravimetric attributes, together with hydration properties, influence seed quality, germination, processing, […]
Equine-assisted therapy: definition, professional training and application in Bulgaria. A review.R. Vlaeva, L. Hristova Department of Animal husbandry – Non-ruminant animals and special branches, Faculty of Agriculture, Trakia University, Student’s campus, 6000, Stara Zagora, Bulgaria (Manuscript received 04 June 2026; accepted for publication 27 August 2026) e-mail: radka.vlaeva@trakia-uni.bg Abstract. This study examines the essence of equine-assisted therapy, the possibilities for its implementation and development as a method for […]
Advances in bovine genetics for enhanced milk production: A review.Albena Bekyarova Department of General Animal Husbandry, Faculty of Veterinary Medicine, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 03 June 2026; accepted for publication 28 August 2026) e-mail: albena.bekarova@trakia-uni.bg Abstract. The global human population is expected to reach approximately 9.7-9.8 billion by 2050 and peak around 10.3-10.4 billion in the mid-2080s which would create a substantial increase in food […]
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Tomato leaf miner, Tuta absoluta (Povolny) (Lepidoptera: gelechiidae) – first record in Bulgaria
Correlation between grain yield and yield components in winter barley varieties
Fibromelanosis in domestic chickens
Fatty acid composition of common carp, rainbow trout and grey mullet fish species
Influence of genotype and environments on quality of winter wheat varieties in Northern Bulgaria
Functional properties of maltitol
Grouping of determinate local tomato varieties on the basis of cluster analysis
Grain combines productivity according to various unloading methods – in the field and at the edge of the field
Genotype x Environment Interaction and Stability Analysis of Some Narbonne Vetch (Vicia narbonensis L.) Genotypes
Near Infrared Spectroscopy and aquaphotomics for monitoring changes during yellow cheese ripening
Correlation between grain yield and yield components in winter barley varieties
Fibromelanosis in domestic chickens
Fatty acid composition of common carp, rainbow trout and grey mullet fish species
Influence of genotype and environments on quality of winter wheat varieties in Northern Bulgaria
Functional properties of maltitol
Grouping of determinate local tomato varieties on the basis of cluster analysis
Grain combines productivity according to various unloading methods – in the field and at the edge of the field
Genotype x Environment Interaction and Stability Analysis of Some Narbonne Vetch (Vicia narbonensis L.) Genotypes
Near Infrared Spectroscopy and aquaphotomics for monitoring changes during yellow cheese ripening