P. Yankov*, M. Drumeva, D. Plamenov Department of Plant Production, Faculty of Marine Sciences and Ecology,Technical University Varna,1 Studentska, 9010 Varna, Bulgaria Abstract. The investigation was carried out during 2008 – 2010 in the trial field of Dobrudzha Agricultural Institut

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

N. Nankov, G. Milev, A. Ivanova, I. Iliev, M. Nankova* Dobrudzha Agricultural Institute, 9520 General Toshevo, Bulgaria Abstract. The investigations on the long-term growing of wheat without rotation as well as its two-field rotation with maize in Dobrudzha Agricultural Institute date

V. Ivanova*, S. Doneva, Z. Petrova Dobroudzha Agricultural Institute, 9520 General Toshevo, Bulgaria Abstract. During 2009 – 2011 at Dobroudzha Agricultural Institute, General Toshevo, Bulgaria the response of 365 new common winter wheat lines to the cause agents of brown rust (Puccin

N. Tsenov1*, T. Gubatov1, E. Tsenova2 1Agronom I Holding, 9300 Dobrich, Bulgaria 2Dobrudzha Agricultural Institute, 9525 General Toshevo, Bulgaria Abstract. Objectives. The height of the stem of wheat has a direct impact on its productivity. Genetics of the trait is very particular in

P. Yankov1*, M. Nankova2, M. Drumeva1, D. Plamenov1, B. Klochkov2 1Department of Plant Production, Faculty of Marine Sciences and Ecology, Technical University Varna, 1 Studentska, 9010 Varna, Bulgaria 2Dobrudzha Agricultural Institute, 9520 General Toshevo, Bulgaria Abstract. The inv

Z. Petrova*, G. Sabev 1Department of Agrotechnology, Dobrudzha Agricultural Institute, 9520 General Toshevo, Bulgaria Abstract. The aim of this investigation was to determine the effect of the date of introduction of herbicides on the infestation with weeds. The experiments were carri

A. Ivanova, N. Tsenov Abstract. The constant interest in common wheat investigations is determined by the main share this crop has in agriculture and by the unique properties it possesses. This investigation was carried out under field conditions for a three-year period (2009 – 2011)

N. Tsenov, D. Atanasova Abstract. Numerous common wheat varieties have been developed in Bulgaria, which when grown under variable environments, the magnitude of the grain yield is influenced by them. In order to determine the reasons for such variations the effect of the growing cond

I. Stankov, S. Tsvetanov, P. Stankova, I. Yanchev, T. Raycheva Abstract. The studies have been carried out through demonstrative experiments by the first in the country private Seedsman’s house “Sadovo”. Presented are the results from the studies on the productivity and some qua