Svetoslav Anev, Nikolina Tzvetkova University of Forestry, Sofia, Bulgaria svetoslav.anev@gmail.com   Abstract The initiation of phenological phases and duration of the growth period at young beech stands in the region of West Balkan mountain were observed. Stands grow at specific temperature regime, determined by altitude, exposure and orography of the terrains. Significant differences among the […]

Tzviatka Karagiozova, Plamen Ninov National Institute of Meteorology and Hydrology – BAS, Bulgaria tzviatka.karagiozova@meteo.bg       plamen.ninov@meteo.bg   Abstract Two of the most important controls determining whether or not a channel is stable are sediment supply and flow regime. If either of these undergoes progressive or sudden change, the channel may change irreversible. Extraction of alluvial material […]

Y. Kirkova, G. Stoimenov Nikola Poushkarov Institute of Soil Science, Sofia, Bulgaria kirkova@mail.bg   Abstract Two year (1999– 2000) experiments were conducted with sunflower in rotation with maize for grain on leached meadow- cinnamon soil in the Experimental station of the “N.Pushkarov” Institute of Soil Science in Tzalapitza, Plovdiv district(East Middle South Bulgaria). The aim […]

Vera Petrova, Georgi Stoimenov, Sevdelina Manolova “N.Poushkarov” Institute of Soil Science, Sofia, Bulgaria vera_zamfirova@abv.bg Abstract: Two – year field experiments (2010-2011) with 14 wheat Bulgarian varieties and Sadovo 1 as a standard variety as well as 2 variety lines were conducted on leached meadow – cinnamon soil in the Experimental station of the “N. Pushkarov” […]

Nedyalka Georgieva*1, Zvezdelina Yaneva1 Chemistry Unit, Department of Pharmacology, Animal Physiology and Physiological Chemistry, Faculty of Veterinary Medicine, Trakia University, Students Campus, 6000 Stara Zagora, Bulgaria E-mail: nvgeorgieva@vmf.uni-sz.bg; z.yaneva@abv.bg *Corresponding author: Assoc. Prof. N. V. Georgieva PhD, Tel.: (+359) 42 699 642; Fax: (+359) 42 672 009; Е-mail: nvgeorgieva@vmf.uni-sz.bg   Abstract The urge for sustainable development of natural water […]

Atanas Sevov1, Christina Yancheva1, Rada Popova1 1 Agricultural University, Plovdiv, Bulgaria asevov@yahoo.com   Abstract The study was conducted during the period 2004 – 2007 years in the Agricultural University – Plovdiv experimental field. The development of two of the most popular multifolium alfalfa varieties in Bulgaria has been traced. It was found that the region […]

Jussi Paatero1 , Blagorodka Veleva2, Juha Hatakka1 and Elena Hristova2 Finnish Meteorological Institute, Helsinki, Finland National Institute of Meteorology and Hydrology, Sofia, Bulgaria Jussi.Paatero@fmi.fi   Abstract A huge earthquake with a magnitude of 9.0 occurred east of the Honshu Island, Japan on 11 March 2011 05:46 UTC. The earthquake and especially the resulting tsunami wave […]

Vladia Subkova 1* ,  Evlogy Markov 2  1 Institute for Land Reclamation and Mechanization, Sofia, Bulgaria  2 “N. Pushkarov” Institute of Soil Science, Sofia, Bulgaria vlpsubkova@mail.bg   Abstract Essential for obtaining high yields of fruits depends on the proper quantity of nitrogen fertilizers, as well as timing and manner of its submission. The effect is […]

Rada Popova,Vania Delibaltova, Neli Yordanova,Atanas Sevov Agricultural University, Plovdiv, Bulgaria radapopova@abv.bg   Abstract In the modern intensive agriculture soil fertility is assessed on those indicators that have the greatest influence on the development of individual crops, output of the humus horizon, the humus content in A and B horizon, particle size composition, texture ratio, reaction […]

Sv. Marinova, E. Zlatareva, R. Toncheva,, Hr. Pchelarova Institute of Soil Science, Sofia, Bulgaria svetla_mar@mail.bg   Abstract In recent years, built and entered into service a large number treatment plants for waste water /wastewater treatment/. A large amount of sludge is produced at biological treatment. They accumulate in the region of stations, hamper their functioning […]