G. Delchev1*, T. Barakova2 1Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria 2Field Crops Institute, 6200 Chirpan, Bulgaria (Manuscript received 16 May 2016; accepted for publication 11 August 2016) Abstract. The research was condu

Z. Rankova1*, M. Tityanov2 1Fruit Growing Institute, 4004 Plovdiv, 12 Ostromila, Bulgaria 2University of Forestry, 10 Kliment Ohridski, 1756 Sofia, Bulgaria (Manuscript received 31 May 2016; accepted for publication 26 July 2016) Abstract. The study was carried out in the period 2010

G. Delchev1*, T. Barakova2 1Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria 2Field Crops Institute, 6200 Chirpan, Bulgaria (Manuscript received 16 May 2016; accepted for publication 9 August 2016) Abstract. The research was conduc

D. Atanasova*, V. Maneva Institute of Agriculture, 8400 Karnobat, Bulgaria (Manuscript received 1 July 2016; accepted for publication 26 August 2016) Abstract. During the period 2012 – 2014 in the Institute of Agriculture, Karnobat a field experiment was conducted with winter malting

N. Prodanova – Marinova* Institute of Viticulture and Enology, 5800 Pleven, Bulgaria (Manuscript received 1630 May 2016; accepted for publication 17 August 2016) Abstract. To maintain soil surface clean of weeds in the parent vineyard for producing cuttings for scions, the efficiency

G. Delchev* Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 28 January 2016; accepted for publication 30 May 2016) Abstract. During 2013 – 2015 on pellic vertisol soil type was conducted a field experiment. Un

T. Barakova1*, G. Delchev2 1Field Crops Institute, 6200 Chirpan, Bulgaria 2Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 16 May 2016; accepted for publication 26 May 2016) Abstract. An experiment was carried

G. Delchev* Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 28 January 2016; accepted for publication 2 March 2016) Abstract. . The research was conducted during 2013 – 2015 on pellic vertisol soil type. Under

Z. Petrova1*, Z. Zlatev2 1Dobrudzha Agricultural Institute, 9520 General Toshevo, Bulgaria 2Department of Plant Physiology, Faculty of Agronomy, Agricultural University, 12 Mendeleev, 4000 Plovdiv, Bulgaria Abstract. The aim of this investigation was to determine the effect of the dat

G. Delchev*, M. Georgiev Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria Abstract. Herbicides combinations and tank mixtures of herbicides with adjuvants, fertilizers, growth regulators, fungicides, insecticides, are more effectiv