V. Dimova*, D. Georgiev Department of Agricultural Engineering, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 22 November 2020; accepted for publication 16 April 2021) Abstract. The aim of the study is to determine the optimum thickness of

G. Tihanov* Department of Agricultural Engineering, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 12 December 2020; accepted for publication 2 April 2021) Abstract. The article studied the effect of transport vehicles on the grain harveste

V. Krasteva*, M. Yankova Institute of Fisheries and Aquaculture, 4003 Plovdiv, Bulgaria (Manuscript received 14 October 2020; accepted for publication 18 January 2021) Abstract. The present paper investigates the body length and weight, and the size-weight variations of one-month-old

M. Drumeva* Department of Plant Production, Faculty of Manufacturing Engineering and Technologies, Technical University of Varna, 1 Studentska str., 9010 Varna, Bulgaria (Manuscript received 5 September 2020; accepted for publication 16 January 2021) Abstract. The main purpose of sunf

G. Tihanov1*, N. Ivanov2 1Department of Agricultural Engineering, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria 2Department of Plant production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 7 September 2020; accep

R. Bazitov* Agricultural institute, 6000 Stara Zagora, Bulgaria (Manuscript received 24 August 2020; accepted for publication 19 October 2020) Abstract: The aim of the present study was to establish the evapotranspiration of Sudan grass variety Engje-1, grown as a second crop for sila

G. Tihanov* Department of Agricultural Engineering, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 13 July 2020; accepted for publication 26 October 2020) Abstract. A study on some operational characteristics of a direct sowing machine-trac

Alaa Suhiel Ibrahim* Research station of Ciano, Jableh, the agricultural scientific research center in Lattakia, General corps of scientific agricultural researches, Syria (Manuscript received 26 May 2020; accepted for publication 27 July 2020) Abstract. This investigation was conduct

M. Todorova1*, S. Atanassova2, M. Georgiev1, L. Pleshkuza1 1Department of Crop production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria, 2Department of Biochemistry, Microbiology and Physics, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulga

H. Lukanov1*, I. Pavlova2 1Department of Animal Science – monogastric and other animals, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria 2Department of General livestock breeding, Faculty of Veterinary medicine, Trakia University, 6000 Stara Zagora, Bulgar